Proteomics

Dataset Information

0

Identification of auto mono-ADP-ribosylation sites on SIRT6 and SIRT7


ABSTRACT: The aim of this project was to identify the auto mono-ADP-ribosylation sites on SIRT6 and SIRT7 to study the effect of the point mutations S56A and N189A respectively on their ADP-ribosylation activity. In addition, the mono-ADP-ribosylation pattern of SIRT7 was obtained in cells under different stress conditions (UV, H2O2, ionizing Irradiation and glucose starvation).

INSTRUMENT(S): Orbitrap Eclipse, Orbitrap Fusion Lumos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Permanent Cell Line Cell

SUBMITTER: Joan Josep Bech-Serra  

LAB HEAD: Alex Vaquero

PROVIDER: PXD018344 | Pride | 2021-04-19

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
ADPribosylpeptides.xlsx Xlsx
SIRT6_WT_S56A_2020MB000_JUMO_001_02_5pto.raw Raw
SIRT6_WT_S56A_2020MB000_JUMO_002_02_5pto.raw Raw
SIRT6_WT_S56A_peptide.csv Csv
SIRT6_WT_S56A_proteins.csv Csv
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Publications


Sirtuins are key players of metabolic stress response. Originally described as deacetylases, some sirtuins also exhibit poorly understood mono-adenosine 5'-diphosphate (ADP)-ribosyltransferase (mADPRT) activity. We report that the deacetylase SirT7 is a dual sirtuin, as it also features auto-mADPRT activity. SirT7 mADPRT occurs at a previously undefined active site, and its abrogation alters SirT7 chromatin distribution. We identify an epigenetic pathway by which ADP-ribosyl-SirT7 is recognized  ...[more]

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