PIME: A quantitative predicting application to find the isoelectric points for peptides

CINF 80

Daming Li, dli@litecsys.com, Computational Design and Modeling, LITEC Systems Corporation, New York, NY 10006
Quantitative phosphoproteomics analysis is becoming a hotspot and provides the possibilities to study the dynamics of protein phosphorylation and to better understand the regulatory networks of key processes in cells. In this paper we present a quantitative application, which predicts the isoelectric points for peptides with and without methyl esterification. Numerical simulation of this model shows that methylated phosphopeptides and non-phosphopeptides can be grouped on the basis of the number of phosphate groups and basic residues in each peptide. The theoretical results are supported by experiments. We developed a SOAP webservice component and an Excel add-in and it can be easily integrated into Spotfire™ DecisionSite and SciTegic™ Pipeline Pilot.
 

General Papers
8:30 AM-11:50 AM, Thursday, August 23, 2007 BCEC -- 252 A, Oral

Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix

Division of Chemical Information

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007