Analyzing marginal cases in differential shotgun proteomics

被引:17
作者
Carvalho, Paulo C. [1 ,2 ]
Fischer, Juliana S. G. [1 ,3 ]
Perales, Jonas [2 ]
Yates, John R. [4 ]
Barbosa, Valmir C. [5 ]
Bareinboim, Elias [6 ]
机构
[1] Inst Oswaldo Cruz, Ctr Technol Dev Hlth, BR-20001 Rio De Janeiro, Brazil
[2] Inst Oswaldo Cruz, Dept Physiol & Pharmacodynam, Lab Toxinol, BR-20001 Rio De Janeiro, Brazil
[3] Inst Oswaldo Cruz, Dept Biochem & Mol Biol, Lab Funct Genom & Bioinformat, BR-20001 Rio De Janeiro, Brazil
[4] Scripps Res Inst, Dept Physiol Chem, La Jolla, CA 92037 USA
[5] Univ Fed Rio de Janeiro, Syst Engn & Comp Sci Program, Rio De Janeiro, Brazil
[6] Univ Calif Los Angeles, Dept Comp Sci, Los Angeles, CA 90024 USA
基金
美国国家卫生研究院;
关键词
D O I
10.1093/bioinformatics/btq632
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
We present an approach to statistically pinpoint differentially expressed proteins that have quantitation values near the quantitation threshold and are not identified in all replicates (marginal cases). Our method uses a Bayesian strategy to combine parametric statistics with an empirical distribution built from the reproducibility quality of the technical replicates.
引用
收藏
页码:275 / 276
页数:2
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