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  Proteome-wide Analysis of Lysine Acetylation Suggests its Broad Regulatory Scope in Saccharomyces cerevisiae

Henriksen, P., Wagner, S. A., Weinert, B. T., Sharma, S., Bacinskaja, G., Rehman, M., et al. (2012). Proteome-wide Analysis of Lysine Acetylation Suggests its Broad Regulatory Scope in Saccharomyces cerevisiae. MOLECULAR & CELLULAR PROTEOMICS, 11(11), 1510-1522. doi:10.1074/mcp.M112.017251.

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 Creators:
Henriksen, Peter1, Author
Wagner, Sebastian A.1, Author
Weinert, Brian T.1, Author
Sharma, Satyan1, Author
Bacinskaja, Giedre1, Author
Rehman, Michael2, Author              
Juffer, Andre H.1, Author
Walther, T. C.2, Author              
Lisby, Michael1, Author
Choudhary, Chunaram1, Author              
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1external, ou_persistent22              
2Former Research Groups, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565145              

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Free keywords: SISTER-CHROMATID COHESION; MASS-SPECTROMETRY; HISTONE ACETYLATION; SIGNALING NETWORKS; ESCHERICHIA-COLI; C-TRAP; YEAST; COMPLEXES; DEACETYLATION; PHOSPHORYLATION
 Abstract: Post-translational modification of proteins by lysine acetylation plays important regulatory roles in living cells. The budding yeast Saccharomyces cerevisiae is a widely used unicellular eukaryotic model organism in biomedical research. S. cerevisiae contains several evolutionary conserved lysine acetyltransferases and deacetylases. However, only a few dozen acetylation sites in S. cerevisiae are known, presenting a major obstacle for further understanding the regulatory roles of acetylation in this organism. Here we use high resolution mass spectrometry to identify about 4000 lysine acetylation sites in S. cerevisiae. Acetylated proteins are implicated in the regulation of diverse cytoplasmic and nuclear processes including chromatin organization, mitochondrial metabolism, and protein synthesis. Bioinformatic analysis of yeast acetylation sites shows that acetylated lysines are significantly more conserved compared with nonacetylated lysines. A large fraction of the conserved acetylation sites are present on proteins involved in cellular metabolism, protein synthesis, and protein folding. Furthermore, quantification of the Rpd3-regulated acetylation sites identified several previously known, as well as new putative substrates of this deacetylase. Rpd3 deficiency increased acetylation of the SAGA (Spt-Ada-Gcn5-Acetyltransferase) complex subunit Sgf73 on K33. This acetylation site is located within a critical regulatory domain in Sgf73 that interacts with Ubp8 and is involved in the activation of the Ubp8-containing histone H2B deubiquitylase complex. Our data provides the first global survey of acetylation in budding yeast, and suggests a wide-ranging regulatory scope of this modification. The provided dataset may serve as an important resource for the functional analysis of lysine acetylation in eukaryotes. Molecular & Cellular Proteomics 11: 10.1074/mcp.M112.017251, 1510-1522, 2012.

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Language(s): eng - English
 Dates: 2012-11
 Publication Status: Published in print
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000313277100032
DOI: 10.1074/mcp.M112.017251
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Title: MOLECULAR & CELLULAR PROTEOMICS
Source Genre: Journal
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Publ. Info: 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA : AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
Pages: - Volume / Issue: 11 (11) Sequence Number: - Start / End Page: 1510 - 1522 Identifier: ISSN: 1535-9476