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Omics score: 1009

Confetti: A Multi-protease Map of the HeLa Proteome for Comprehensive Proteomics

ABSTRACT: Data from ProteomeXchange, PXD ID: PXD000900. Data file: HeLa_ArgC-Elastase_CID_2.mgf. Published as part of Mol Cell Proteomics. 2014 Apr 2 . From the Abstract: {{i}} ... In an attempt to improve protein sequence coverage and to target regions of proteins that do not generate useful tryptic peptides, we deployed a multi-protease strategy on the HeLa proteome. First, we used seven commercially available enzymes in single, double and triple enzyme combinations. A total of 48 digests were performed. 5223 proteins were detected by analyzing the unfractionated cell lysate digest directly, with 42% mean sequence coverage ... {{/i}}

INSTRUMENT(S): Instrument

ORGANISM(S): Homo_sapiens_viruses, Human_female

DISEASE(S): Not Available

SUBMITTER: Xiaofeng Guo, et al.

PROVIDER: GPM11210026998 | GPMDB |

REPOSITORIES: GPMDB

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Confetti: a multiprotease map of the HeLa proteome for comprehensive proteomics.

Guo Xiaofeng X Trudgian David C DC Lemoff Andrew A Yadavalli Sivaramakrishna S Mirzaei Hamid H

Molecular & cellular proteomics : MCP 20140402 6

Bottom-up proteomics largely relies on tryptic peptides for protein identification and quantification. Tryptic digestion often provides limited coverage of protein sequence because of issues such as peptide length, ionization efficiency, and post-translational modification colocalization. Unfortunately, a region of interest in a protein, for example, because of proximity to an active site or the presence of important post-translational modifications, may not be covered by tryptic peptides. Detec ...[more]

PMID: 24696503

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