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carbon content of proteins?

Roger Murphy murphy_r at licre.ludwig.edu.au
Thu Mar 19 01:17:52 EST 1998

I'm not SELLING this program, I just thought you might find it useful to know 
about!  It is designed primarily to estimate a number of parameters of 
synthetic peptides - ease of synthesis, prediciting difficult sequences, 
predictive algorithms for structure, predictive mass spec fragmentation, 
predictive HPLC compared to any standard you might use, digestion fragemts 
from enzymatic and chemical digest - and, yes, elemental composition as a 
small part of the amino acid analysis predictions.  YOU might have the skills 
and time to sit and write programs or macros in spreadsheets, some of us have 
to rely on others to do this for us, and I think that for the relatively small 
sum of US$89 this little program does a good job!

Anyone who's interested can contact Coshisoft on:



In article <350FDBF3.7C729CA at bph.ruhr-uni-bochum.de>, Marc Saric 
<saric at bph.ruhr-uni-bochum.de> wrote:
>Roger Murphy wrote:
>> Peptide Companion, from CoshiSoft/PeptiSearch in the US will calculate
>> elemental composition.  As its name suggests, it's really designed for
>> analysis of peptides, but I use it for proteins also.  It's not free, > but
> is <US$100 and is a useful little tool.
>Hm, quite expensive for such a simple task as searching a database of
>molecules and adding the atom-types.
>Even with very little programming experience one could do that with
>every language in nearly no time.
>I´m quite shure it should also be possible with MS Excel or any other
>spreadsheet which supports simple database funtions and scripting.
>In case that Peptide Companion is capable of doint more than this, it
>might be worth the money (or in case that you don´t care for 100$).
>Marc Saric
>Lehrstuhl fuer Biophysik
>Projektgruppe Theoretische Biophysik
>Ruhr-Universitaet Bochum

Roger Murphy, Ph.D.
Biological Production Facility
Ludwig Institute for Cancer Research
Austin & Repatriation Medical Centre
Studley Road,
Heidelberg,  Vic. 3084

Tel  61-3-94965463
Fax  61-3-94965436
Email murphy_r at licre.ludwig.edu.au

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