From owner-7tms_r@net.bio.net Wed Jan 03 22:00:00 1996
Path: biosci!LILLY.COM!SHARP_JOHN_D
From: SHARP_JOHN_D@LILLY.COM ("J.D.SHARP 317-276-4268 DC0434")
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unsubscribe sharp_john_d@lilly.com 7TMS_r@net.bio.net


From: SHARP JOHN D                  (MCVAX0::FOOT)

To:   VMS MAIL ADDRESSEE            (INT::"7tms_r@net.bio.net")
cc:   SHARP JOHN D                  (MCVAX0::FOOT)

From owner-7tms_r@net.bio.net Mon Jan 08 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!newsserver.jvnc.net!netnews.sb.com!news
From: Steven_Mcclue-1@sbphrd.com (Steve Mcclue)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: adenylyl/adenylate cyclase
Date: 9 Jan 1996 13:42:46 GMT
Organization: Smithkline Beecham Pharmaceuticals
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Can anyone remind me why we should now call this 
enzyme Adenylyl cyclase rather than Adenylate?

Steve
PS(I know this is a 12TM, but I was sure someone here 
would know the answer, anyway)


From owner-7tms_r@net.bio.net Mon Jan 08 22:00:00 1996
Path: biosci!novo.dk!byw
From: byw@novo.dk (Robert Bywater)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: (none)
Date: 9 Jan 1996 23:15:11 -0800
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Steve Mcclue writes :

>Can anyone remind me why we should now call this 
>enzyme Adenylyl cyclase rather than Adenylate?


--- 'Adenylyl' has caught on in the biochemical literature because
   some enzymes are regulated by attachment of a moiety of adenylate
   to a tyrosine hydroxyl group through the phosphate group of the
   nucleotide. The reaction is thus a phosphorYLation, chemically
   akin to an acYLation, so the modification of the protein is
   referred to as an adneylYLation.

   Now, cyclization of the phosphate group in AMP to cAMP probably
   involves an 'adenylylation' of a nucleophilic group in the active
   site of the cyclase, but that is not the point. The net result is
   that a monoester of phosphoric acid gets converted into a (cyclic)
   diester. ( The nucleotide itself gets 'adenylylated' ). But I
   would prefer to say that the object of the verb 'cyclize' is
   the monoester, which happens to be called adenylic acid, or more
   properly, as Steve Mcclue writes, adenylate. The adenylate gets
   cyclized.

   Therefore, Steve Mcclue should be congratulated for calling into
   question this erroneous piece of nomenclature. This is not a trivial
   point because there are questions of chemistry, and grammar, at stake.
   



Robert Bywater




 
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From owner-7tms_r@net.bio.net Tue Jan 09 22:00:00 1996
Path: biosci!WH.BAYER.COM!buggy
From: buggy@WH.BAYER.COM
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: adenylyl/adenylate cyclase
Date: 10 Jan 1996 09:49:39 -0800
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  I'm still spelling it adenylyl.
	Because I'm a rebel without a cause on a one-way joyride straight
	to hell.

  So there.

From owner-7tms_r@net.bio.net Tue Jan 09 22:00:00 1996
Path: biosci!MED.UNC.EDU!erweiss
From: erweiss@MED.UNC.EDU ("Ellen R. Weiss")
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: re:  adenylyl/adenylate cyclase
Date: 10 Jan 1996 13:26:03 -0800
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Steven Mcclue asked the following:

Can anyone remind me why we should now call this 
enzyme Adenylyl cyclase rather than Adenylate?

----------------------------------



I can only relate the following experience.  I was at a Cold Spring Harbor 
meeting on G proteins organized by Michael Wigler, I think in 1986.  Someone 
stood up and said we should resolve the conflict between calling guanine 
nucleotide binding proteins "N proteins" or "G proteins".  Several people argued
in favor of "G proteins".  After that, Lutz Birnbaumer stood up and said he 
would go for "G proteins" if everyone would agree to "adenlylyl cyclase" rather 
than "adenylate cyclase".  Everyone agreed, and it seemed that all the papers 
published after that meeting used that nomenclature.  


Ellen Weiss
University of North Carolina



From owner-7tms_r@net.bio.net Tue Jan 09 22:00:00 1996
Path: biosci!MC.DUKE.EDU!premo003
From: premo003@MC.DUKE.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: bacteriorhodopsin
Date: 10 Jan 1996 07:00:44 -0800
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Dear 7TMers:

    Someone in our group is looking for a source for bacteriorhodopsin 
protein.  I know I have seen purple membranes for sale in a catalog a couple 
of years ago, but can't remember who sells them.  Does anyone out there have 
any info?  Thanks much!

Richard Premont
LefkoLand
Department of Medicine
Duke University Medical Center
Durham, North Carolina 27710
(919) 684-2974    FAX -8875

From owner-7tms_r@net.bio.net Tue Jan 09 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!usenet.eel.ufl.edu!psgrain!nntp.teleport.com!usenet
From: nevek@teleport.com (Kim Neve)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: adenylyl/adenylate cyclase
Date: Wed, 10 Jan 1996 19:13:03 GMT
Organization: Oregon Health Sciences University
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Steven_Mcclue-1@sbphrd.com (Steve Mcclue) wrote:

>Can anyone remind me why we should now call this 
>enzyme Adenylyl cyclase rather than Adenylate?

I think that the primary reason is because Gilman said that we should.
If you check the enzyme nomenclature web site, at
http://expasy.hcuge.ch/sprot/enzyme.html, you will find that
adenylate cyclase is listed as the standard name.

Kim Neve





From owner-7tms_r@net.bio.net Wed Jan 10 22:00:00 1996
Path: biosci!bcm.tmc.edu!pendragon!news.msfc.nasa.gov!elroy.jpl.nasa.gov!swrinde!newsfeed.internetmci.com!globe.indirect.com!usenet
From: coburn@indirect.com (anne coburn)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: PROTEIN CHEMIST OPENING
Date: 11 Jan 1996 22:17:23 GMT
Organization: Coburn Scientific
Lines: 33
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A leading biotechnology company in Southern California seeks a:

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---     Strong analytical skills and a knowledge of good laboratory
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Coburn Search & Consulting
4449 East Whitman
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Phone:   520-881-0084
Fax:     520-321-1475
e-mail: coburn@indirect.com

From owner-7tms_r@net.bio.net Thu Jan 11 22:00:00 1996
Path: biosci!internet!biosci!not-for-mail
From: biohelp (BIOSCI Administrator)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: BIOSCI miniFAQ, ver. 14-DEC-95
Date: 12 Jan 1996 02:00:28 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 199
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(LAST REVISION: 14-DEC-95)

This BIOSCI "miniFAQ" is designed to answer the questions that come up
the *most frequently*.  The main BIOSCI FAQ (Frequently Asked
Questions) is accessible on the World Wide Web at URL
http://www.bio.net/.

	Contents:
	--------
	1) Using the WWW to access the BIOSCI/bionet newsgroups.

	2) What to do about "spams," i.e., junk mail, ads, etc.

	3) Examples of subscribing and unsubscribing to the mailing lists.

	4) The BIOSCI user address and research interest directory.


1) Using the WWW to access the BIOSCI/bionet newsgroups.
--------------------------------------------------------
As of 10 December 1995, all BIOSCI/bionet full newsgroups are
accessible through the World Wide Web (WWW) at URL http://www.bio.net.
One can read and reply publicly or privately to both recent postings
and archived messages through one's Web browser if it is configured
properly to send e-mail.  Each newsgroup is equipped with its own WAIS
index in addition to the master index for the entire set.  The main
BIOSCI home page also has access to the BIO-JOURNALS Table of Contents
database WAIS index and the BIOSCI user address database described in
another item further below.


2) What to do about "spams," i.e., junk mail, ads, etc.
-------------------------------------------------------
BIOSCI is a set of parallel USENET newsgroups (the "bionet" groups),
mailing lists, and a hypermail archive at URL http://www.bio.net/.
The same postings are distributed on all media (except for a small
number of mailing-list-only groups at net.bio.net).  Unfortunately it
is becoming a despicable practice on the Internet (by a few people out
to make a fast buck) to do automated mass postings to thousands of
newsgroups and mailing lists.  These attempts to grab free advertising
are refered to as "spams" in the usual, somewhat boneheaded, net
terminology.  USENET is more susceptible to this practice, and many
spams originate on the USENET groups and then are passed on to the
mailing lists.  However, spammers also get lists of mailing addresses
and hit these too, so neither medium is immune.

What should you do personally if you get junk mail?
---------------------------------------------------
Just delete it and move on without reading it further.  Filing a
protest is becoming increasingly useless because spammers are often
disguising the addresses where the messages are sent from.  Unless you
really understand Internet mail systems, your attempt at protest by
sending replies to the message will often end up being sent to the
address of an innocent person that the spammer is victimizing.

What can BIOSCI/bionet do to protect its newsgroups?
----------------------------------------------------
The only solution currently available is to moderate the newsgroup.
If this newsgroup is already moderated, then you are in good shape.
Moderation protects the USENET distribution from about 95% of the
spams that are being sent to date and protects the mailing lists
completely.  Moderation means, however, that someone has to take the
time to review each message before it goes out.  We have set up
software here that simply allows the moderator to forward to an
address at net.bio.net messages that (s)he wishes to have distributed.
This takes no more time than that needed to read the message and pass
it on, say about 1 min. per message.

Most newsgroups currently have a discussion leader who is responsible
for their newsgroup.  The discussions leaders and their e-mail
addresses are listed in the BIOSCI Information Sheet which is
available on the Web at http://www.bio.net/.  If a newsgroup is being
hit with too many junk postings, please contact the discussion leader
for that group and see if there is interest in moderating the group.
Please do not assume that by simply posting a complaint to the
newsgroup itself, anyone on the BIOSCI staff will act on your
complaint.  With close to 100 newsgroups to run, the BIOSCI staff has
to rely on the discussion leaders of each newsgroup to report problems
directly to us at biosci-help@net.bio.net.

We will moderate any of our newsgroups if the discussion leader tells
us that the readership of the group wishes to do so and if a moderator
is willing to do the work.  For most BIOSCI/bionet groups, this
entails only a few minutes of work each day.

Moderating a newsgroup will resolve probably 95% of the junk postings
on the USENET distribution.  Unfortunately there are easy ways for
determined spammers to override the moderation mechanism on USENET,
but we can protect our e-mail subscribers from unwanted postings if
the newsgroup is moderated.  You can also access our newsgroups over
the WWW at URL http://www.bio.net.  While this Web interface will not
stop spammers from trying to post to the groups, this will give you
yet another way, besides using USENET news, to keep the junk out of
your personal mail files.  For those of you with local USENET news
systems, the Web interface will also give you faster access to new
newsgroups and recent postings.


3) Examples of subscribing and unsubscribing to the mailing lists.
------------------------------------------------------------------
PLEASE NOTE: The BIOSCI management does NOT act on
subscription/unsubscription requests that are posted improperly to the
newsgroups and mailing lists.  People who do this only bother everyone
on the lists to no avail.  Please be sure to follow the proper
procedures below.

Gory details are in the BIOSCI Information sheets on the Web at
http://www.bio.net.  Below we give an example utilizing the
METHODS-AND-REAGENTS list at both of our two BIOSCI sites:

Users in the Americas and Pacific Rim countries who use the BIOSCI
------------------------------------------------------------------
node at computer net.bio.net:
----------------------------

A) Determine the "listname" which is the <=8 character mail address
                                         ^^^^^^^^^^^^^
   for the group.  These can be found in the BIOSCI Info. Sheet.  For
   the METHODS-AND-REAGENTS group the mailing address is
   methods@net.bio.net.  The listname is the portion of the address to
   the left of the @ sign, i.e., "methods".  The listname is used with
   the "subscribe" and "unsubscribe" commands illustrated below.

B) Mail all commands in the body of a mail message addressed to
   biosci-server@net.bio.net.  Do NOT send commands to the newsgroup
   posting addresses!  Leave the Subject: line blank, any text on it
   will be ignored.

C) In the body of your message put one or more of the following
   commands with an "end" command on the last line, e.g.,

   subscribe methods
   unsubscribe methods
   end

   Do NOT put your e-mail address or other text on these lines.  The
   server only allows you to cancel your subscription if the address
   on your mail header matches the address on our mailing list.
   Please ask for help at biosci-help@net.bio.net if your address has
   changed, e.g., if you know you are on the list but the server tells
   you that you are not a member.


Users in Europe, Africa, and Central Asia who use the BIOSCI node at
--------------------------------------------------------------------
computer daresbury.ac.uk (also known as dl.ac.uk):
-------------------------------------------------

To subscribe and unsubscribe to/from the BIOSCI lists, you need to
specify the full USENET newsgroup name with "bionet-news." prepended.
The USENET newsgroup names are listed in the BIOSCI Information sheet
on the Web at http://www.bio.net/.  For the METHODS-AND-REAGENTS list
the USENET newsgroup name is bionet.molbio.methds-reagnts, thus the
appropriate commands are

    sub bionet-news.bionet.molbio.methds-reagnts

    unsub bionet-news.bionet.molbio.methds-reagnts

These commands are included in a message addressed to mxt@dl.ac.uk,
NOT to the newsgroup mailing addresses.  As usual, include the text in
the body of the message as text on the Subject: line is ignored.

To unsubscribe from all the lists at the UK node, use

    unsub bionet-news

Please note that if the address in the list is different than the one
in your mail message header, you will not be able to unsubscribe by
this method. If you have problems, please mail biosci@daresbury.ac.uk.


4) The BIOSCI user address and research interest directory.
-----------------------------------------------------------
Please take this opportunity to add your name, address, and research
interest information to the BIOSCI User Address Database if you have
not already done so.

You can fill out the address form directly through our Web page at URL
http://www.bio.net/adrform.html.

The address database is reindexed nightly for WWW access (the URL is
http://www.bio.net/).  If you are not directly on the Internet but can
reach it by e-mail, please use our waismail server to access the user
directory.  waismail use is described above.  You can also request a
user address form by e-mail from biosci-help@net.bio.net.

Please check your database entry from time-to-time to see if your
address information is still up-to-date.  Because of our limited
personnel resources, we ask that you resubmit a *complete* form to
revise your entry; we only replace complete entries and do not have
resources to edit old forms.

				Sincerely,

				Dave Kristofferson
				BIOSCI/bionet Manager

				biosci-help@net.bio.net

From owner-7tms_r@net.bio.net Sun Jan 14 22:00:00 1996
Path: biosci!MEDUSA.UNM.EDU!lsklar
From: lsklar@MEDUSA.UNM.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Position available
Date: 15 Jan 1996 06:14:50 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 51
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Distribution: world
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Research Associate Position

To investigate the relationship of formyl peptide ligand-receptor-G
protein dynamics to cell activation and cell physiology. We are interested
in the implications of receptor-G protein precoupling for signal
transduction. 

PhD, MD with research experience or related degree and related 
experience required. Desirable qualifications include experience in 
signal transduction, fluorescence, and a record of publications.

For best consideration, apply by March 1,1996. Position will remain 
open until filled.

Opportunities include: 1) real-time subsecond analysis of ligand-receptor
interactions with stopped flow flow cytometry and spectroscopy; 2) 
analysis of a family of fluorescent ligands with variable kinetic 
characteristics; 3) analysis of mutant receptors; 4) biochemical analysis 
of transduction assemblies including phosphorylation; 5) computer 
modeling; 6) access to the Los Alamos National Flow Cytometry Resource

Contact or send CV to: Larry A. Sklar, PhD
Professor of Pathology, UNM Health Sciences Center
Co-Director National Flow Cytometry Resource, Los Alamos Nat. Lab

Phone 505-277-7249; Fax 505-255-7790
Address: Cancer Center Rm 325
900 Camino de Salud
University of New Mexico Health Sciences Center
Albuquerque, NM 87131

Representative recent publications

1. Neubig, R. and Sklar, L.A., Subsecond modulation of formyl peptide
linked guanine nucleotide-binding proteins by guanosine 5'-0-(3-thio)
triphosphate in permeabilized neutrophils, Mol. Pharm, 43:734-740, 1993.

2. Posner, R.G., Fay, S.P., Domalewski, M. and Sklar, L.A.,  Continuous
spectrofluorometric analysis of formyl peptide receptor ternary complex 
interactions. Mol. Pharm., 45:65-73, 1994.

3. Nolan, J.P., Posner, R.G., Martin, J.C., Habbersett, R., and Sklar, 
L.A. A Rapid Mix Flow Cytometer With Subsecond Kinetic Resolution,
Cytometry, 21:223-229,1995.

4. Domalewski, M.D., Guyer, D.A., Freer, R.J., Muthukumaraswamy, N. and 
Sklar,L.A. Fixation traps receptors in high and low affinity forms that
can be  regulated by GTP[S] in the absence of ligand, In Press, J. Rec. Res.
1996


From owner-7tms_r@net.bio.net Mon Jan 15 22:00:00 1996
Path: biosci!ITSA.UCSF.EDU!barber
From: barber@ITSA.UCSF.EDU (Diane Barber)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: (none)
Date: 16 Jan 1996 17:40:53 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 3
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Distribution: world
Message-ID: <Pine.A32.3.91.960116164603.60223A-100000@itsa.ucsf.edu>
NNTP-Posting-Host: net.bio.net

Does anyone know whether and how COS1 and COS7 cells are different?

Diane Barber

From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!MOLDEV.COM!jack_owicki
From: jack_owicki@MOLDEV.COM (Jack Owicki)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: Endogenous GPCRs
Date: 17 Jan 1996 17:44:06 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 60
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<(In reply to Rick Longton's query:  Does anyone know of a listing of
endogenous GPCRs in HEK 293, CHO and COS cells?  >

We've done a short survey of  functional responses of several cell lines to
a variety of GPCR agonists, using our Cytosensor=AE Microphysiometer to
observe receptor activation via subsequent perturbations of cellular
metabolic activity (see McConnell et al.(1992) Science257:1906; Owicki et
al. (1994) Ann. Rev. Biophys. Biomol. Struct. 23:87).  These are
unpublished data based on a two-day experiment by Greg Baxter, not meant to
be an exhaustive survey and not highly replicated (standard disclaimer
here!), but I thought you might find them useful nonetheless.

Cell lines tested:
CHO-K1, L(tk-), HeLa, 3T3, HEK-293.

Agonists tested:
5HT (1 =B5M); Octopamine (10 =B5M); Endothelin-1 (100 nM); Bradykinin (10 =
=B5M);
Angiotensin-II (10 =B5M); SKF-38393 (10 =B5M; dopamine D1 selective);
quinpirole (10 =B5M; dopamine D2 selective); Adenosine (10 =B5M);
Met-enkephalin (10 =B5M); Isoproterenol (10 =B5M; beta adrenergic selective)=
;
Carbachol (100 =B5M; muscarinic and nicotinic); ATP (10 =B5M; purinoceptor).

All combinations of cells and agonists were tested.  The following showed
functional responses ("?" indicates a weak apparent response of
questionable significance):
CHO-K1:         5HT, ATP
L(tk-):               Adenosine (?), ATP
HeLa:              Endothelin (?), Isoproterenol (?), Carbachol, ATP
3T3:                 Endothelin, Adenosine (?), Isoproterenol, ATP
HEK-293:       Endothelin (?), Adenosine, Isoproterenol, Carbachol, ATP

In separate studies, we have seen responses to thrombin and PAF in CHO-K1 ce=
lls.

Our results are pretty consistent with Schonbrunn's original list of
endogenous receptors in CHO-K1,  HEK-293, and L(tk-) cells, just reposted
in reply to Longton.  We appear to have obtained responses to all the
receptors on that list for which we have tested agonists, with one
exception.  CHO-K1 cells are reported to express very low levels of beta
adrenergic receptors, and we didn't see a response;  I'm not aware whether
a functional response has ever been demonstrated by any means in this case.


...Jack Owicki




------------------------------------------------------------
John C. Owicki, Ph.D.
Associate Technical Director
Molecular Devices Corporation
1311 Orleans Drive
Sunnyvale, CA 94089
E-mail:  jack_owicki@moldev.com
Phone: (408) 747-3514; Fax: (408) 747-3601



From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!MC.DUKE.EDU!koch0002
From: koch0002@MC.DUKE.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Post-Doc Position
Date: 17 Jan 1996 06:09:30 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 21
Sender: daemon@net.bio.net
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NNTP-Posting-Host: net.bio.net


     


        I have a post-doc position available in my laboratory to study G 
protein-coupled signaling-based gene therapy approaches to vascular disorders 
including vein graft intimal hyperplasia and arterial restenosis.  Animal models
here at Duke are already established to study our novel approach to these 
problems.  Experience in vascular smooth muscle a plus. Interested parties can 
contact me via email or phone.

                                Walter J. Koch, Ph.D.
                                Assistant Professor
                                Department of Surgery
                                Duke University Medical Center
                                Box 2606
                                Durham, NC 27710
                                email: KOCH0002@mc.duke.edu
                                919-684-3007
                                FAX: 919-681-5262
                                

From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!FARMR1.MED.UTH.TMC.EDU!aschonb
From: aschonb@FARMR1.MED.UTH.TMC.EDU (A. Schonbrunn)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Endogenous GPCRs
Date: 17 Jan 1996 15:27:11 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 59
Sender: daemon@net.bio.net
Distribution: world
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This is the list compiled from the responses that I received to my original
quiery about endogenous receptors.  If anyone knows of any other receptors
in these cells and/or disagrees with what I have listed please let me know.

Agi Schonbrunn

****************************************************************************
**********************

   CHO-K1    - beta adrenergic receptors:  =89 30 fmol/mg protein
             - thrombin receptors coupled to PLC
             - CCK coupled to PLC
             - alpha2-adrenergic receptors (<40 fmol/mg).
             - calcitonin receptors
             - type I VIP receptors
             - ATP coupled to Ca++ mobilisation (at 10-5 M)


   HEK-293    - beta adrenergic receptors:  =89 7-20 fmol/mg protein
              - somatostatin receptors coupled to cyclase inhibition
              - muscarinic receptors coupled to:
                    - stimulation of PLC (JBC 267:31, 1992) and
                    - inhibition of cylcase (JBC 267: 24858, 1992)
              - a thrombin receptor
              - UTP (P2u) receptor
              - PGE EP2 receptor
              - adenosine A2b receptor
              - lysophosphatidic acid receptor


   COS        - beta adrenergic receptors
              - thrombin receptor
              - UTP (P2u) receptor
              - PGE EP2 receptor
              - adenosine A2b receptor
              - lysophosphatidic acid receptor

        Ltk-    - P2u (UTP) receptor (PLC & Ca)



**************************************************************************
Agi Schonbrunn, Ph.D.
Dept. of Pharmacology,
Univ. of Texas Medical School


>Does anyone know of a listing of endogenous GPCRs in HEK 293, CHO and COS
>cells?
>I remember someone querying the group on this topic a while ago, but I don'=
t
>know if anything ever came of it.  Thanks for any help.

Rick Longton
SmithKline Beecham Pharmaceuticals
610-270-7418
Rick_D_Longton@sbphrd.com



From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!WH.BAYER.COM!jfs
From: jfs@WH.BAYER.COM
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re:  (none)
Date: 17 Jan 1996 06:07:26 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
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Dear Diane-
Cos 7 and Cos 1 cells have the same origin and are
identical.  They are just two different clones.
I have compared them for transfection efficiency
and they perform the same.

PS I used to work for FSG and BKK (ring any bells).

See ya around the net-
Jean Schaefer
Bayer Research Center
West Haven, CT
jfs@wh.bayer.com

From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!UCDAVIS.EDU!cahaskell
From: cahaskell@UCDAVIS.EDU (Chris Haskell)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: COS 1 & 7 differences
Date: 17 Jan 1996 08:40:12 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
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According to ATCC descriptions, the difference is the line I've indicated
below.  Otherwise, COS-7 has the same description listed below.  I'm sure
that there are many more differences in the literature...

TCC CRL-1650
COS-1 (Kidney, SV40 transformed, African green monkey)

Passage Frozen: Unknown. Current medium for propagation: Dulbecco's
modified Eagle's medium, 90%; FBS, 10%. Additional Information:
COS-1 is a fibroblast-like cell line established from CV-1 simian
cells (ATCC CCL-70) which were transformed by an origin-defective
mutant of SV40 which codes for wild-type T antigen. This line
contains T antigen, retains complete permissiveness for lytic
growth of SV40, supports the replication of ts A209 virus at 40C
and supports the replication of pure populations of SV40 mutants
with deletions in the early region.

-> This line contains a single
integrated copy of the complete early region of SV40 DNA.

This is
a suitable host for transfection, especially for vectors requiring
expression of SV40 T antigen (ATCC 37192, 37193, 53100). Handle as
potentially biohazardous material under at least Biosafety Level 2
containment. Reference: Cell 23: 175-182, 1981. Submitted by: Y.
Gluzman, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY.
Price Code: J




-----------------------------------------------------------------------
Chris Haskell                           Dept. Biological Chemistry
                                        School of Medicine
cahaskell@ucdavis.edu                   University of California, Davis
(916) 752-9070                          Davis, CA 95616
-----------------------------------------------------------------------



From owner-7tms_r@net.bio.net Tue Jan 16 22:00:00 1996
Path: biosci!sbphrd.com!Rick_D_Longton
From: Rick_D_Longton@sbphrd.com (Rick D Longton)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Endogenous GPCRs
Date: 17 Jan 1996 14:19:24 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 11
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 Does anyone know of a listing of endogenous GPCRs in HEK 293, CHO and COS 
cells?  
I remember someone querying the group on this topic a while ago, but I don't 
know if anything 
ever came of it.  Thanks for any help.

Rick Longton
SmithKline Beecham Pharmaceuticals
610-270-7418
Rick_D_Longton@sbphrd.com


From owner-7tms_r@net.bio.net Wed Jan 17 22:00:00 1996
Path: biosci!WELCHLINK.WELCH.JHU.EDU!bjmarg
From: bjmarg@WELCHLINK.WELCH.JHU.EDU (BARRY J MARGULIES)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Frank Kolakowski
Date: 18 Jan 1996 10:16:51 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 18
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Sorry for the broadcast to the whole world, but...

Frank, if you're out there, I can't find your new e-mail address (since 
you moved from MGH).  Please e-mail me b/c I have a couple questions 
about the GCR database.  Thanks.

We now return you to your regularly scheduled program.

-Barry (bjmarg@welchlink.welch.jhu.edu)
URL:  http://www.welch.jhu.edu/homepages/bjmarg/html/homepage.html
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
     GEORGIA CONFEDERATE SOLDIERS	     from a monument at Antietam
					  National Battlefield, just south
   We sleep here in obedience to law.	         of The Cornfield.
      When duty called, we came.	    And no, I'm not from Georgia,
    When country called, we died.	     I just thought it was cool.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


From owner-7tms_r@net.bio.net Thu Jan 18 22:00:00 1996
Path: biosci!sbphrd.com!Rick_D_Longton
From: Rick_D_Longton@sbphrd.com (Rick D Longton)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Endog. GPCRs Results
Date: 19 Jan 1996 07:28:39 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 146
Sender: daemon@net.bio.net
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Message-ID: <9601191828.AA1406@pho903.sbphrd.com>
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Here are the results of my recent inquiry regarding endogenous GPCRs in 
HEK 293, COS and CHO cells.  Many thanks to those who replied.

Rick Longton
SmithKline Beecham Pharmaceuticals
610-270-7418
Rick_D_Longton@sbphrd.com

----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------

This is the list compiled from the responses that I received to my original
quiery about endogenous receptors.  If anyone knows of any other receptors
in these cells and/or disagrees with what I have listed please let me know.

Agi Schonbrunn

****************************************************************************
**********************

   CHO-K1    - beta adrenergic receptors:  	 30 fmol/mg protein
             - thrombin receptors coupled to PLC
             - CCK coupled to PLC
             - alpha2-adrenergic receptors (<40 fmol/mg).
             - calcitonin receptors
             - type I VIP receptors
             - ATP coupled to Ca++ mobilisation (at 10-5 M)


   HEK-293    - beta adrenergic receptors:  	 7-20 fmol/mg protein
              - somatostatin receptors coupled to cyclase inhibition
              - muscarinic receptors coupled to:
                    - stimulation of PLC (JBC 267:31, 1992) and
                    - inhibition of cylcase (JBC 267: 24858, 1992)
              - a thrombin receptor
              - UTP (P2u) receptor
              - PGE EP2 receptor
              - adenosine A2b receptor
              - lysophosphatidic acid receptor


   COS        - beta adrenergic receptors
              - thrombin receptor
              - UTP (P2u) receptor
              - PGE EP2 receptor
              - adenosine A2b receptor
              - lysophosphatidic acid receptor

        Ltk-    - P2u (UTP) receptor (PLC & Ca)



**************************************************************************
Agi Schonbrunn, Ph.D.
Dept. of Pharmacology,
Univ. of Texas Medical School

-------------------------------------------------------
-------------------------------------------------------
-------------------------------------------------------

<(In reply to Rick Longton's query:  Does anyone know of a listing of
endogenous GPCRs in HEK 293, CHO and COS cells?  >

We've done a short survey of  functional responses of several cell lines to
a variety of GPCR agonists, using our Cytosensor=AE Microphysiometer to
observe receptor activation via subsequent perturbations of cellular
metabolic activity (see McConnell et al.(1992) Science257:1906; Owicki et
al. (1994) Ann. Rev. Biophys. Biomol. Struct. 23:87).  These are
unpublished data based on a two-day experiment by Greg Baxter, not meant to
be an exhaustive survey and not highly replicated (standard disclaimer
here!), but I thought you might find them useful nonetheless.

Cell lines tested:
CHO-K1, L(tk-), HeLa, 3T3, HEK-293.

Agonists tested:
5HT (1 =B5M); Octopamine (10 =B5M); Endothelin-1 (100 nM); Bradykinin (10 =
=B5M);
Angiotensin-II (10 =B5M); SKF-38393 (10 =B5M; dopamine D1 selective);
quinpirole (10 =B5M; dopamine D2 selective); Adenosine (10 =B5M);
Met-enkephalin (10 =B5M); Isoproterenol (10 =B5M; beta adrenergic selective)=
;
Carbachol (100 =B5M; muscarinic and nicotinic); ATP (10 =B5M; purinoceptor).

All combinations of cells and agonists were tested.  The following showed
functional responses ("?" indicates a weak apparent response of
questionable significance):
CHO-K1:         5HT, ATP
L(tk-):               Adenosine (?), ATP
HeLa:              Endothelin (?), Isoproterenol (?), Carbachol, ATP
3T3:                 Endothelin, Adenosine (?), Isoproterenol, ATP
HEK-293:       Endothelin (?), Adenosine, Isoproterenol, Carbachol, ATP

In separate studies, we have seen responses to thrombin and PAF in CHO-K1 ce=
lls.

Our results are pretty consistent with Schonbrunn's original list of
endogenous receptors in CHO-K1,  HEK-293, and L(tk-) cells, just reposted
in reply to Longton.  We appear to have obtained responses to all the
receptors on that list for which we have tested agonists, with one
exception.  CHO-K1 cells are reported to express very low levels of beta
adrenergic receptors, and we didn't see a response;  I'm not aware whether
a functional response has ever been demonstrated by any means in this case.


...Jack Owicki




------------------------------------------------------------
John C. Owicki, Ph.D.
Associate Technical Director
Molecular Devices Corporation
1311 Orleans Drive
Sunnyvale, CA 94089
E-mail:  jack_owicki@moldev.com
Phone: (408) 747-3514; Fax: (408) 747-3601

-----------------------------------------------
-----------------------------------------------
-----------------------------------------------
      
 Reply to:   RE>Endogenous GPCRs

Rick,
could you post the results of your inquiry.  HEK have muscarinic receptors.
Stuart Sealfon

--------------------------------------
Date: 1/17/96 6:18 PM
To: Stuart Sealfon
From: Rick D Longton
 Does anyone know of a listing of endogenous GPCRs in HEK 293, CHO and COS 
cells?  
I remember someone querying the group on this topic a while ago, but I don't 
know if anything 
ever came of it.  Thanks for any help.

Rick Longton
SmithKline Beecham Pharmaceuticals
610-270-7418
Rick_D_Longton@sbphrd.com


From owner-7tms_r@net.bio.net Sun Jan 21 22:00:00 1996
Path: biosci!musc.edu!laniersm
From: laniersm@musc.edu (Stephen M Lanier)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: (none)
Date: 22 Jan 1996 14:27:15 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 8
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NNTP-Posting-Host: net.bio.net


A student asked me the following:

What types of adenylylcyclase are expressed in L cells (tk-)?

Thanks.



From owner-7tms_r@net.bio.net Mon Jan 22 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!vixen.cso.uiuc.edu!howland.reston.ans.net!news-e1a.megaweb.com!newstf01.news.aol.com!newsbf02.news.aol.com!not-for-mail
From: ritaber@aol.com (RITABER)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Electrophysiologists,Molecular Biologist,Protein Biochemists Jobs
Date: 23 Jan 1996 20:12:22 -0500
Organization: America Online, Inc. (1-800-827-6364)
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Synaptic Pharmaceutical Corp. has immediate openings for staff positions
in our Molecular and Cell Biology Department.  Successful candidates will
join a multi-disciplinary team focused on the discovery of novel G
protein-coupled and kinase receptors expressed in the nervous system.

Electrophysiologists
Applicants should have demonstrated expertise in  Xenopus oocyte
electrophysiology and either a PhD degree with 2 years of postdoc
experience or an MS degree.. Experience in expression cloning and/or
second messenger systems would be beneficial. 

Molecular Biologists
Applicants should have an MS/BS degree with experience in molecular
biology. Expression cloning experience is desirable.

Protein Biochemist
Applicants should have a PhD degree with 2 years of postdoc experience in
protein purification and characterization. Experience with protein kinase
receptors would be desirable.

Synaptic Pharmaceutical offers excellent compensation and benefits that
include a 401(k) plan and equity participation programs. For
consideration, indicate the position to which you are responding and send
or fax your resume in confidence to:  Human Resource Manager, Department
170A , Synaptic Pharmaceutical Corp., 215 College Road, Paramus, N. J.
07652.  Fax # 201 261  0623.

From owner-7tms_r@net.bio.net Mon Jan 22 22:00:00 1996
Path: biosci!UCONNVM.UCONN.EDU!GMS95003
From: GMS95003@UCONNVM.UCONN.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: (none)
Date: 23 Jan 1996 10:04:12 -0800
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Hi,
I am interested in knowing about the methods of obtaining the transmembrane
proteins by cell culture. I know of a method utilising insect cell line
cultures, I would like to know about other alternatives.

From owner-7tms_r@net.bio.net Mon Jan 22 22:00:00 1996
Path: biosci!UH.EDU!RABond
From: RABond@UH.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Inhibitory B-adrs?
Date: 23 Jan 1996 08:29:58 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 10
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Does anyone know of any reports where the net response to B-adrenoceptor
activation is inhibitory at the second messenger?  I am aware of the
Lakatta data for the B2, but the net effect of receptor activation is still
stimulatory.  Thanks.


Richard A. Bond, Ph.D.: Department of Pharmacological and Pharmaceutical
Sciences, University of Houston, 4800 Calhoun, Houston, Texas 77204-5515. 
E-mail: RABond@UH.edu  telephone: (713) 743-1210, fax: (713) 743-1229.  


From owner-7tms_r@net.bio.net Tue Jan 23 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!in1.uu.net!zib-berlin.de!fu-berlin.de!news.dfn.de!uni-erlangen.de!winx03!wpxx02.toxi.uni-wuerzburg.de!not-for-mail
From: krasel@wpxx02.toxi.uni-wuerzburg.de (Cornelius Krasel)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: (none)
Date: 23 Jan 1996 22:56:15 GMT
Organization: University of Wuerzburg, Germany
Lines: 29
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References: <960123.130157.EST.GMS95003@UConnVM.UConn.Edu>
NNTP-Posting-Host: wpxx02.toxi.uni-wuerzburg.de
X-Newsreader: TIN [UNIX 1.3 950824BETA PL0]

GMS95003@UCONNVM.UCONN.EDU wrote:
> I am interested in knowing about the methods of obtaining the transmembrane
> proteins by cell culture. I know of a method utilising insect cell line
> cultures, I would like to know about other alternatives.

There have been numerous attempts to produce recombinant seven 
transmembrane helix receptors. A very recent review is:

@article{grisshammer:95,
        author  = {R. Grisshammer and C. G. Tate},
        title   = {Overexpression of integral membrane proteins for
                   structural studies.},
        journal = {Q. Rev. Biophys.},
        volume  = 28,
        number  = 3,
        pages   = {315--422},
        year    = 1995
}

Recently a group has reported high expression levels of a neurokinin-2
receptor in Pichia pastoris, similar to those regularly obtained in
Sf9 (insect) cells.

--Cornelius.

-- 
/* Cornelius Krasel, U Wuerzburg, Dept. of Pharmacology, Versbacher Str. 9 */
/* D-97078 Wuerzburg, Germany   email: phak004@rzbox.uni-wuerzburg.de  SP3 */
/* "Science is the game we play with God to find out what His rules are."  */

From owner-7tms_r@net.bio.net Wed Jan 24 22:00:00 1996
Path: biosci!HLSUN.REDCROSS.ORG!hlatim
From: hlatim@HLSUN.REDCROSS.ORG ("Timothy Hla")
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Symposium on Bioactive Lipids/ prostanoids/ sphingolipids
Date: 25 Jan 1996 10:29:34 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 27
Sender: daemon@net.bio.net
Distribution: world
Message-ID: <9601251823.AA01322@hlsun.red-cross.org>
Reply-To: "Timothy Hla"  <hlatim@hlsun.redcross.org>
NNTP-Posting-Host: net.bio.net

Frontiers on Bioactive Lipids'96
XVIth Washington International Spring Symposium
Washington, DC
MAY 6 to 9, 1996

Topics:  Eicosanoids, cyclooxygenases, eicosanoid receptors, receptors and 
signalling by phospholipids, sphingolipids, fatty acids and esters, lipid 
receptors and antagonists, lipid binding proteins.

Speakers: W.L.Smith, P. Needleman, C. DiRusso, PA Grimaldi, WEM Lands, CC 
Felder, JT O'Flaherty, CN Serhan, JH Exton, TK Harden, WH Molenaar, F Snyder, YA
Hannun, RE Pagano, S Spiegel, VA BAnkaitis, NM Bass, J Knudsen, J Storch, JH 
Veerkamp, AW Ford-Hutchinson, CD Funk, EJ Goetzl, PV Halushka.

Please contact:

JY Vanderhoek
Dept of Biochemistry and Molecular Biology
George Washington University
2300 Eye St., NW
Washington, DC 20037
ph: 202-994-2929 or -3709
fx: 202-994-8974
e-mail: jyvdh@gwis2.circ.gwu.edu
 



From owner-7tms_r@net.bio.net Wed Jan 24 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!newsxfer2.itd.umich.edu!newsxfer.itd.umich.edu!news.mtu.edu!msunews!netnews.upenn.edu!brass2.med.upenn.edu!user
From: obrien@pharm.med.upenn.edu (PJO`B)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: Pichia expression of 7TMS Receptors
Followup-To: bionet.molbio.proteins.7tms_r
Date: Thu, 25 Jan 1996 13:25:48 -0500
Organization: University of Pennsylvania
Lines: 43
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References: <960123.130157.EST.GMS95003@UConnVM.UConn.Edu> <4e3p2f$fsv@winx03.informatik.uni-wuerzburg.de>
NNTP-Posting-Host: brass2.med.upenn.edu

In article <4e3p2f$fsv@winx03.informatik.uni-wuerzburg.de>,
krasel@wpxx02.toxi.uni-wuerzburg.de (Cornelius Krasel) wrote:

> GMS95003@UCONNVM.UCONN.EDU wrote:
> > I am interested in knowing about the methods of obtaining the transmembrane
> > proteins by cell culture. I know of a method utilising insect cell line
> > cultures, I would like to know about other alternatives.
> 
> There have been numerous attempts to produce recombinant seven 
> transmembrane helix receptors. A very recent review is:
> 
> @article{grisshammer:95,
>         author  = {R. Grisshammer and C. G. Tate},
>         title   = {Overexpression of integral membrane proteins for
>                    structural studies.},
>         journal = {Q. Rev. Biophys.},
>         volume  = 28,
>         number  = 3,
>         pages   = {315--422},
>         year    = 1995
> }
> 
> Recently a group has reported high expression levels of a neurokinin-2
> receptor in Pichia pastoris, similar to those regularly obtained in
> Sf9 (insect) cells.
> 
> --Cornelius.


Also see:

FEBS Letters 377:451-56 (1995) Expression of functional mouse 5-HT5a
serotonin receptor in...Pichia pastoris.

in this article, "functional" relates to agonist {[H3]-LSD} binding.
Immunodetection of myc tagged receptors showed staining in the ER and in
cytoplasmic membrane vesicles, but none on the plasma membrane.

Hope this helps

Peter

 

From owner-7tms_r@net.bio.net Sun Jan 28 22:00:00 1996
Path: biosci!WELCHLINK.WELCH.JHU.EDU!bjmarg
From: bjmarg@WELCHLINK.WELCH.JHU.EDU (BARRY J MARGULIES)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Expression in bacteria
Date: 29 Jan 1996 16:23:47 -0800
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 16
Sender: daemon@net.bio.net
Distribution: world
Message-ID: <Pine.SOL.3.91.960129191750.25223A-100000@welchlink.welch.jhu.edu>
NNTP-Posting-Host: net.bio.net

Hi, again, folks.  I've been told that bacterial expression is a 
notoriously poor recombinant system for mammalian GCRs (i.e., bacteria 
have a difficult time making these proteins).  My p.i. would like a 
reference to this, besides "word of mouth," for an upcoming publication.  
Any help?

-Barry (bjmarg@welchlink.welch.jhu.edu)
URL:  http://www.welch.jhu.edu/homepages/bjmarg/html/homepage.html
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
     GEORGIA CONFEDERATE SOLDIERS	     from a monument at Antietam
					  National Battlefield, just south
   We sleep here in obedience to law.	         of The Cornfield.
      When duty called, we came.	    And no, I'm not from Georgia,
    When country called, we died.	     I just thought it was cool.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


From owner-7tms_r@net.bio.net Mon Jan 29 22:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!elroy.jpl.nasa.gov!swrinde!sgigate.sgi.com!sdd.hp.com!col.hp.com!csn!magnus.acs.ohio-state.edu!lerc.nasa.gov!purdue!oitnews.harvard.edu!das-news2.harvard.edu!fas-news.harvard.edu!green!rice
From: rice@green.harvard.edu (Ken Rice)
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Lysine in 2nd position of DRY-like motif?
Date: 30 Jan 1996 20:13:11 GMT
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The DRY motif in the rhodopsin-beta2 family is seen
in several variations:  DRC, DRF, DRH, ERC, etc.

Is anyone aware of a member of the family that has
a lysine in the second position of the motif,
e.g. DKY, EKC, or whatever?

Thanks,
Ken Rice


From owner-7tms_r@net.bio.net Tue Jan 30 22:00:00 1996
Path: biosci!OCELOT.RUTGERS.EDU!WCUI
From: WCUI@OCELOT.RUTGERS.EDU
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: 2D and 3D structure of GPCR ligands
Date: 31 Jan 1996 09:37:02 -0800
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Hi fellow 7tmer:
I like to find sources for 2D and 3D structures of GPCR ligands.
Is there already a database that contains such data?
if so, where are they and how can I get them?
if not, where should I start if I want build such database?
Any suggestions will be fully appreciated.

Weili Cui, Ph.D.
Senior Scientist
Synaptic Pharmaceutical Corp.

From owner-7tms_r@net.bio.net Tue Jan 30 22:00:00 1996
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From: Tuomo Glumoff <tglumoff@btk.utu.fi>
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: Expression in bacteria
Date: 31 Jan 1996 15:30:05 GMT
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You could look at: Grisshammer & Tate, Quarterly Reviews of Biophysics
vol 28, pp. 315-422 (1995): "Overexpression of integral membrane 
proteins for structural studies".

Tuomo



From owner-7tms_r@net.bio.net Tue Jan 30 22:00:00 1996
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From: rocket@chem.sunysb.com
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: RE:Expression in Bacteria
Date: 1 Feb 1996 06:01:37 GMT
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Here are three references for expression of 7tms receptors in ecoli.  Appears
you need a secretion leader, but not always...  I'm tempted to try, but i don't
know...

1.  Chapot et al. (1990)  Eur. J. Biochem.  187;137-144
2.  Freissmuth et al. (1991) PNAS 88;8548-8552.
3.  Marullo et al.  (1988) PNAS  85;7551-7555.

jte

johne@gdpiris.chem.sunysb.edu

From owner-7tms_r@net.bio.net Wed Jan 31 22:00:00 1996
Path: biosci!CCS.BBK.AC.UK!UBCG91C
From: UBCG91C@CCS.BBK.AC.UK
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: 3D structure of GPCR ligands
Date: 1 Feb 1996 05:34:27 -0800
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the crystal structure of human endothelin-1 has been published in:
     Janes, Peapus, Wallace (1994) Nature Structural Biology 1:311-319
the coordinates have been deposited in the Brookhaven Protein Data Bank
as entry 1edn.pdb.  alternatively, i can email them to anyone has trouble 
accessing them there, if you contact me at ubcg91c@ccs.bbk.ac.uk.
cheers
bonnie wallace 

From owner-7tms_r@net.bio.net Wed Jan 31 22:00:00 1996
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From: Rick Neubig <RNeubig@umich.edu>
Newsgroups: bionet.molbio.proteins.7tms_r
Subject: Re: 2D and 3D structure of GPCR ligands
Date: Thu, 01 Feb 1996 18:11:24 -0500
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WCUI@OCELOT.RUTGERS.EDU wrote:
> 
> Hi fellow 7tmer:
> I like to find sources for 2D and 3D structures of GPCR ligands.
> Is there already a database that contains such data?

I'm not sure that you'll find them listed as such. The general database
of protein crystal structures is at:

http://www.pdb.bnl.gov

By the way did you all see the G protein heterotrimer structures in Dec 
15, 1995 Cell and January 26, 1996 Nature?
Rick


> if so, where are they and how can I get them?
> if not, where should I start if I want build such database?
> Any suggestions will be fully appreciated.
> 
> Weili Cui, Ph.D.
> Senior Scientist
> Synaptic Pharmaceutical Corp.

-- 

_________________________________________________________
Rick Neubig                             RNeubig@umich.edu
University of Michigan               Phone (313) 763-3650
http://www.umich.edu/~rneubig        FAX   (313) 763-4450

