A Hybrid, de Novo Based, Genome-Wide Database Search Approach Applied to the Sea Urchin Neuropeptidome

作者:Menschaert Gerben*; Vandekerckhove Tom T M; Baggerman Geert; Landuyt Bart; Sweedler Jonathan V; Schoofs Liliane; Luyten Walter; Van Criekinge Wim
来源:Journal of Proteome Research, 2010, 9(2): 990-996.
DOI:10.1021/pr900885k

摘要

Peptidomics is the identification and study of the in vivo biologically active peptide profile. A combination of high performance liquid chromatography, mass spectrometry, and bioinformatics tools such as database search engines are commonly used to perform the analysis. We report a methodology based on a database system holding the completed translated genome, whereby de novo sequencing and genome-wide database searching are combined. The methodology was applied to the sea urchin neuropeptidome resulting in a 30% increase in identification rate.

  • 出版日期2010-2