Storing antibodies

Stacy Ferguson stacy at localhost.UUCP
Wed Jun 12 20:29:10 EST 2002


For the TC supernatant and ascities, I'd just aliquot into polycarbonate
tubes or microfuge tubes. The TC supernatant titers are likely low but
there's so much serum there that it'll compete so well for coating the 
walls of the tubes that it's unlikely that there's be a noticable drop
in titer. The ascites, assuming it hasn't been cut yet, also has a 
lot of extraneous protein in it and since the titer there should be 
reasonably high, you're not going to lose a large percentage. 
For purified Ab, this would be a judgement call based on concentration 
and how clean you need it for your purposes. If it's very low concentration,
you'll likely lose a high percentage of it. If it's higher, it's not 
as big an issue. If you're concerned about it, you could pre-coat your
tubes with another protein that is unlikely to be a problem in further
uses of the antibody. If you're going to use it in ELISA assays unlabeled,
you could, for example, coat the tubes with BSA or whatever you're using
as a blocking agent for those assays. For indirect use in flow cytometry,
you could coat the tubes with dilute serum or what you usually use in
your staining buffers, etc.

p.s. I've been reading your weight training stuff for years and I count
on it to figure out how to tweak things when I hit a weight plateau in
a lift. So thanks!

In article <m0magugjf5rdgttvhg2hq36ijjm2buqv22 at>,
Elzinator  <none at> wrote:
>A question to the newsgroup:
>I've been away from the immunology lab for several years but now
>expect the arrival of several sources of monoclonals: purified, in TC
>supernatant and ascites. Years ago I used to siliconize glass vials
>for Ab storage, but I would like to find an alternative. In these days
>of polycarbon microcentrifuge tubes/vials galore, there must be an
>alternative for low-binding Ab storage vessels.
>Any suggestions?
>Dept of Veterinary Medicine
><insert whatever here>

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