Proteogenomics: concepts, applications and computational strategies.

Proteogenomics: concepts, applications and computational strategies.
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DOI:
10.1038/nmeth.3144
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发表时间:
2014-11
期刊:
影响因子:
48
通讯作者:
Nesvizhskii, Alexey I.
Nesvizhskii, Alexey I.
中科院分区:
生物学1区
文献类型:
--
作者:
Nesvizhskii, Alexey I.

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Proteogenomics is an area of research at the interface of proteomics and genomics. In this approach, customized protein sequence databases generated using genomic and transcriptomic information are used to help identify novel peptides (not present in reference protein sequence databases) from mass spectrometry-based proteomic data; in turn, the proteomic data can be used to provide protein-level evidence of gene expression and to help refine gene models. In recent years, owing to the emergence of next generation sequencing technologies such as RNA-Seq and dramatic improvements in the depths and throughput of mass spectrometry-based proteomics, the pace of proteogenomics research has greatly accelerated. Here I review the current state of proteogenomics methods and applications, including computational strategies for building and using customized protein sequence databases. I also draw attention to the challenge of false positives in proteogenomics, and provide guidelines for analyzing the data and reporting the results of proteogenomics studies.
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