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Mass spectrometry-based proteomics has been widely used to identify protein expression and function. However, the metaproteomic studies in deep-sea microbiota have been constrained largely by the low identification rates of protein or peptide. To improve the efficiency of metaproteomics for hydrothermal vent microbiota, we firstly constructed a microbial gene database (HVentDB) based on 117 public metagenomic samples from hydrothermal vents and proposed a metaproteomic analysis strategy, which takes the advantages of not only the sample-matched metagenome, but also the metagenomic information released publicly in the community of hydrothermal vents. A two-stage false discovery rate method was followed up to control the risk of false positive. By applying our community-supported strategy to a hydrothermal vent sediment sample, about twice as many peptides were identified when compared with the ways against the sample-matched metagenome or the public reference database. In addition, more enriched and explainable taxonomic and functional profiles were detected by the HVentDB-based approach exclusively, as well as many important proteins involved in methane, amino acid, sugar, glycan metabolism and DNA repair, etc. The new metaproteomic analysis strategy will enhance our understanding of microbiota, including their lifestyles and metabolic capabilities in extreme environments. The database HVentDB is freely accessible from http:\/\/lilab.life.sjtu.edu.cn:8080\/HventDB\/main.html.<\/jats:p>","DOI":"10.1093\/bib\/bbab052","type":"journal-article","created":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T12:10:23Z","timestamp":1616587823000},"source":"Crossref","is-referenced-by-count":2,"title":["A community-supported metaproteomic pipeline for improving peptide identifications in hydrothermal vent microbiota"],"prefix":"10.1093","volume":"22","author":[{"given":"Yafei","family":"Chang","sequence":"first","affiliation":[{"name":"School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qilian","family":"Fan","sequence":"additional","affiliation":[{"name":"School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 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