An adaptive classification model for peptide identification.

Journal: BMC genomics
Published Date:

Abstract

BACKGROUND: Peptide sequence assignment is the central task in protein identification with MS/MS-based strategies. Although a number of post-database search algorithms for filtering target peptide spectrum matches (PSMs) have been developed, the discrepancy among the output PSMs is usually significant, remaining a few disputable PSMs. Current studies show that a number of target PSMs which are close to decoy PSMs can hardly be separated from those decoys by only using the discrimination function.

Authors

  • Xijun Liang
  • Zhonghang Xia
  • Ling Jian
  • Xinnan Niu
  • Andrew Link