GONUTS has been updated to MW1.31 Most things seem to be working but be sure to report problems.

Have any questions? Please email us at ecoliwiki@gmail.com

PMID:26716769

From GONUTS
Jump to: navigation, search
Citation

Tu, S, Guo, SJ, Chen, CS, Liu, CX, Jiang, HW, Ge, F, Deng, JY, Zhou, YM, Czajkowsky, DM, Li, Y, Qi, BR, Ahn, YH, Cole, PA, Zhu, H and Tao, SC (2015) YcgC represents a new protein deacetylase family in prokaryotes. Elife 4

Abstract

Reversible lysine acetylation is one of the most important protein posttranslational modifications that plays essential roles in both prokaryotes and eukaryotes. However, only a few lysine deacetylases (KDACs) have been identified in prokaryotes, perhaps in part due to their limited sequence homology. Herein, we developed a 'clip-chip' strategy to enable unbiased, activity-based discovery of novel KDACs in the Escherichia coli proteome. In-depth biochemical characterization confirmed that YcgC is a serine hydrolase involving Ser200 as the catalytic nucleophile for lysine deacetylation and does not use NAD(+) or Zn(2+) like other established KDACs. Further, in vivo characterization demonstrated that YcgC regulates transcription by catalyzing deacetylation of Lys52 and Lys62 of a transcriptional repressor RutR. Importantly, YcgC targets a distinct set of substrates from the only known E. coli KDAC CobB. Analysis of YcgC's bacterial homologs confirmed that they also exhibit KDAC activity. YcgC thus represents a novel family of prokaryotic KDACs.

Links

PubMed PMC4709262 Online version:10.7554/eLife.05322

Keywords

Amidohydrolases/metabolism; Escherichia coli/enzymology; Escherichia coli Proteins/genetics; Escherichia coli Proteins/metabolism; Lysine/metabolism; Protein Processing, Post-Translational; Substrate Specificity; Transcription Factors/metabolism

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

ECOLI:DHAM

involved_in

GO:0034983: peptidyl-lysine deacetylation

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

ECOLI:DHAM

enables

GO:0033558: protein deacetylase activity

ECO:0000314: direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

ECOLI:DHAM

involved_in

GO:0034983: peptidyl-lysine deacetylation

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

Notes

See also

References

See Help:References for how to manage references in GONUTS.