Re: MS - 2?s: program to determine cuts? / 136 series?

Steven.Johnson@biomeasure.com
Tue, 18 May 1999 08:15:28 +0100

Rich,

Try Peptide companion from KoshiSoft software.

web site: http://www.5z.com for description and demo
downloadable.


______________________________ Reply Separator _________________________________
Subject: MS - 2?s: program to determine cuts? / 136 series?
Author: "Richard F. Cook" <cook@MIT.EDU> at Internet
Date: 5/17/99 8:51 PM

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</smaller></fontfamily><fontfamily><param>New_York</param><bigger>Dear
ABRF Colleagues,



I have a large substrate digested by an enzyme with unknown specificity
and have found several MWs of the peptides generated. I need to know
where the cleavages occurred.


1 Does anyone know if there is a program that will allow me to enter
the sequence of a substrate and the MW of the peptide(s) generated and
then show the possible cleavage points?


2 Does anybody have any ideas on what a +136 series could be? A
fraction that was supposed to contain a fluorescent dye labeled peptide
from a reverse phase HPLC run gave this +136 series envelope. I believe
the mobile phase was TFA/acetonitrile/water.


Thanks in advance.



Dick

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