Proteomics of proteasome complexes and ubiquitinated proteins.

Abstract:

:Ubiquitin-proteasome-mediated protein degradation is central to the regulation of many important biological processes, including cell cycle progression, apoptosis and DNA repair. Recognition and degradation of ubiquitinated substrates by the 26S proteasome is tightly regulated to maintain normal cell growth. Disruption of the proteasomal degradation pathway has been implicated in a wide range of human diseases. Although the ubiquitin-proteasome system has been intensively investigated, many key questions remain unanswered in regard to its components and regulation of its activities. A key step towards a full understanding of the pathway is to investigate the proteasome complex subunit composition, heterogeneity, post-translational modifications, assembly, proteasome interaction networks and degradation substrates. Mass spectrometry-based proteomic approaches have been successfully applied for unraveling the details of the proteasome complexes and their substrates in an unprecedented fashion. An overview of the current knowledge of the proteasomal degradation pathway based on mass spectrometry approaches is presented.

journal_name

Expert Rev Proteomics

authors

Wang X,Guerrero C,Kaiser P,Huang L

doi

10.1586/14789450.4.5.649

subject

Has Abstract

pub_date

2007-10-01 00:00:00

pages

649-65

issue

5

eissn

1478-9450

issn

1744-8387

journal_volume

4

pub_type

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