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Details on Person UniProt:P18887 XRCC1

Class:IdReferenceGeneProduct:67456
_chainChangeLogchain:1-633 added on Fri February 6 2015
_displayNameUniProt:P18887 XRCC1
_timestamp2024-11-03 20:03:57
chainchain:1-633
checksum76174967D034F89F
commentFUNCTION Scaffold protein involved in DNA single-strand break repair by mediating the assembly of DNA break repair protein complexes (PubMed:11163244, PubMed:28002403). Negatively regulates ADP-ribosyltransferase activity of PARP1 during base-excision repair in order to prevent excessive PARP1 activity (PubMed:28002403, PubMed:34102106, PubMed:34811483). Recognizes and binds poly-ADP-ribose chains: specifically binds auto-poly-ADP-ribosylated PARP1, limiting its activity (PubMed:14500814, PubMed:34102106, PubMed:34811483).SUBUNIT Homodimer (PubMed:16397295). Interacts with polynucleotide kinase (PNK), DNA polymerase-beta (POLB) and DNA ligase III (LIG3) (PubMed:19155274, PubMed:19336415). Interacts with APTX and APLF (PubMed:14755728, PubMed:15044383, PubMed:15380105, PubMed:17353262, PubMed:17507382). Interacts with APEX1; the interaction is induced by SIRT1 and increases with the acetylated form of APEX1 (PubMed:19934257). Interacts with (poly-ADP-ribosylated) PARP1 (PubMed:34811483).INTERACTION Moves from the nucleoli to the global nuclear chromatin upon DNA damage (PubMed:28002403). Recruited to DNA damage sites fowwing interaction with poly-ADP-ribose chains (PubMed:14500814).TISSUE SPECIFICITY Expressed in fibroblasts, retinal pigmented epithelial cells and lymphoblastoid cells (at protein level).PTM Phosphorylation of Ser-371 causes dimer dissociation. Phosphorylation by CK2 promotes interaction with APTX and APLF.PTM Sumoylated.POLYMORPHISM Carriers of the polymorphic Gln-399 allele may be at greater risk for tobacco- and age-related DNA damage.DISEASE The disease is caused by variants affecting the gene represented in this entry.
descriptionrecommendedName: fullName evidence="27"DNA repair protein XRCC1 alternativeName: X-ray repair cross-complementing protein 1
geneNameXRCC1
identifierP18887
isSequenceChangedFALSE
keyword3D-structure
Chromosome
DNA damage
DNA repair
Isopeptide bond
Neurodegeneration
Nucleus
Phosphoprotein
Proteomics identification
Reference proteome
Repeat
Ubl conjugation
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameXRCC1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8954730] ENSEMBL:ENSG00000073050 XRCC1 [Homo sapiens]
secondaryIdentifierXRCC1_HUMAN
Q6IBS4
Q9HCB1
sequenceLength633
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:67455] XRCC1 [nucleoplasm] [Homo sapiens]
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