Considerations for constructing a protein sequence database for metaproteomics.
Considerations for constructing a protein sequence database for metaproteomics.
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DOI:
10.1016/j.csbj.2022.01.018
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发表时间:
2022
影响因子:
6
通讯作者:
Kleiner M
中科院分区:
文献类型:
--
作者:
Blakeley-Ruiz JA;Kleiner M
Mass spectrometry-based metaproteomics has emerged as a prominent technique for interrogating the functions of specific organisms in microbial communities, in addition to total community function. Identifying proteins by mass spectrometry requires matching mass spectra of fragmented peptide ions to a database of protein sequences corresponding to the proteins in the sample. This sequence database determines which protein sequences can be identified from the measurement, and as such the taxonomic and functional information that can be inferred from a metaproteomics measurement. Thus, the construction of the protein sequence database directly impacts the outcome of any metaproteomics study. Several factors, such as source of sequence information and database curation, need to be considered during database construction to maximize accurate protein identifications traceable to the species of origin. In this review, we provide an overview of existing strategies for database construction and the relevant studies that have sought to test and validate these strategies. Based on this review of the literature and our experience we provide a decision tree and best practices for choosing and implementing database construction strategies.
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DOI:
10.1038/ismej.2016.168
发表时间:
2017-04
期刊:
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