Neuropeptide;
peptidomics;
sea urchin;
de novo sequencing;
genome-wide database search;
indexed genome;
TANDEM MASS-SPECTROMETRY;
PEPTIDE SEQUENCE TAGS;
SECRETORY PATHWAY;
IDENTIFICATION;
THROUGHPUT;
TOOL;
PROTEOMICS;
SOFTWARE;
BROWSER;
MODEL;
D O I:
10.1021/pr900885k
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
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.