Proteomics

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C-di-GMP affect the protein acetylation through CobB dependent deacetylation


ABSTRACT: To determine whether c-di-GMP could affect CobB-dependent deacetylation in a global setting, we applied Stable Isotope Labeling with Amino acids in Cell culture (SILAC) coupled with MS to quantitatively compare the levels of protein acetylation in WT, ΔcobB and ΔdgcZ cells.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Escherichia Coli

SUBMITTER: Zhaowei Xu  

LAB HEAD: Shengce Tao

PROVIDER: PXD013292 | Pride | 2019-06-17

REPOSITORIES: Pride

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Publications


As a ubiquitous bacterial secondary messenger, c-di-GMP plays key regulatory roles in processes such as bacterial motility and transcription regulation. CobB is the Sir2 family protein deacetylase that controls energy metabolism, chemotaxis, and DNA supercoiling in many bacteria. Using an Escherichia coli proteome microarray, we found that c-di-GMP strongly binds to CobB. Further, protein deacetylation assays showed that c-di-GMP inhibits the activity of CobB and thereby modulates the biogenesis  ...[more]

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