emPAI Calc-for the estimation of protein abundance from large-scale identification data by liquid chromatography-tandem mass spectrometry

Kosaku Shinoda, Masaru Tomita, Yasushi Ishihama

Research output: Contribution to journalArticle

101 Citations (Scopus)


Summary: emPAI Calc is an open-source web application for the estimation of protein abundance. It uses the correlation between the number of identified peptides and protein abundance in mass spectrometry-based proteomic experiments. The program is the first implementation of our previously reported emPAI algorithm; it calculates the emPAI from the protein identification results obtained by database search engines such as Mascot.™ Availability: http://empai.iab.keio.ac.jp/; http://empai.iab.keio.ac.jp/supplement.php Source codes are available under Mozilla Public License. Contact: y-ishi@ttck.keio.ac.jp Supplementary Information: Supplementary data are available at Bioinformatics online.

Original languageEnglish
Pages (from-to)576-577
Number of pages2
Issue number4
Publication statusPublished - 2009 Dec 22


ASJC Scopus subject areas

  • Statistics and Probability
  • Biochemistry
  • Molecular Biology
  • Computer Science Applications
  • Computational Theory and Mathematics
  • Computational Mathematics

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