Homo sapiens Protein: PARPBP
Summary
InnateDB Protein IDBP-382022.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol PARPBP
Protein Name chromosome 12 open reading frame 48
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000393867
InnateDB Gene IDBG-53547 (PARPBP)
Protein Structure
UniProt Annotation
Function Required to suppress inappropriate homologous recombination, thereby playing a central role DNA repair and in the maintenance of genomic stability. Antagonizes homologous recombination by interfering with the formation of the RAD51-DNA homologous recombination structure. Binds single-strand DNA and poly(A) homopolymers. Positively regulate the poly(ADP- ribosyl)ation activity of PARP1; however such function may be indirect. {ECO:0000269PubMed:20931645, ECO:0000269PubMed:22153967}.
Subcellular Localization Cytoplasm {ECO:0000250}. Nucleus {ECO:0000269PubMed:20931645, ECO:0000269PubMed:22153967}. Note=Localizes to chromatin in response to S phase arrest but not in mitosis. Targeted to chromatin via its interaction with PCNA.
Disease Associations
Tissue Specificity Restricted to testis. Overexpressed in multiple cancer cells. {ECO:0000269PubMed:20931645}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 1 experimentally validated interaction(s) in this database.
Experimentally validated
Total 1 [view]
Protein-Protein 1 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0003677 DNA binding
GO:0005515 protein binding
Biological Process
GO:0006281 DNA repair
GO:2000042 negative regulation of double-strand break repair via homologous recombination
Cellular Component
GO:0000785 chromatin
GO:0005634 nucleus
GO:0005737 cytoplasm
Protein Structure and Domains
PDB ID
InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
PFAM
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9NWS1
PhosphoSite PhosphoSite-Q9NWS1
TrEMBL
UniProt Splice Variant
Entrez Gene 55010
UniGene Hs.330663
RefSeq
HUGO HGNC:26074
OMIM 613687
CCDS
HPRD 07937
IMGT
EMBL AC087882 AK000648 AK303571 BC018903 BC030962 BC050696 BC070270 BC098313 BC099734 BC099844
GenPept AAH18903 AAH30962 AAH50696 AAH70270 AAH98313 AAH99734 AAH99844 BAA91306 BAG64592