Montana State University

Mcw Research Foundation, Inc.

Edward A Dratz

Paul A Grieco

Brian D Halligan

The invention relates to compositions and methods useful in the labeling and identification of proteins. The invention provides for highly soluble zwitterionic dye molecules where the dyes and associated side groups are non-titratable and maintain their net zwitterionic character over a broad pH range, for example, between pH 3 and 12. These dye molecules find utility in a variety of applications, including use in the field of proteomics.

Zwitterionic dyes for labeling in proteomic and other biological analyses

The present invention provides a peptide identification method along with related peptide databases, method of generating the databases, computer usable media, and computer program products. The peptide identification method involves the use of qualitative amino acid composition or partial qualitative amino acid composition information of a query peptide obtained by mass spectrometry to correlate the query peptide to one or more peptides with defined amino acid sequences in a peptide database generated according to the present invention.

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Bozeman, MT, United States of America

Edward A Dratz