期刊
EXPERT REVIEW OF PROTEOMICS
卷 16, 期 5, 页码 375-390出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/14789450.2019.1609944
关键词
Metaproteomics; metaproteogenomics; proteogenomics
资金
- Deutsche Forschungsgemeinschaft (DFG) [RE3474/5-1, RE3474/2-2]
- Fund for Scientific Research Flanders (FWO) [1S90918N, G042518N]
Introduction: The study of microbial communities based on the combined analysis of genomic and proteomic data - called metaproteogenomics - has gained increased research attention in recent years. This relatively young field aims to elucidate the functional and taxonomic interplay of proteins in microbiomes and its implications on human health and the environment.Areas covered: This article reviews bioinformatics methods and software tools dedicated to the analysis of data from metaproteomics and metaproteogenomics experiments. In particular, it focuses on the creation of tailored protein sequence databases, on the optimal use of database search algorithms including methods of error rate estimation, and finally on taxonomic and functional annotation of peptide and protein identifications.Expert opinion: Recently, various promising strategies and software tools have been proposed for handling typical data analysis issues in metaproteomics. However, severe challenges remain that are highlighted and discussed in this article; these include: (i) robust false-positive assessment of peptide and protein identifications, (ii) complex protein inference against a background of highly redundant data, (iii) taxonomic and functional post-processing of identification data, and finally, (iv) the assessment and provision of metrics and tools for quantitative analysis.
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