Forkhead-associated domain histidine triad-like protein ; FHA-HIT
Categories
Elisa
Function
DNA-binding protein involved in single-strand DNA break repair, double-strand DNA break repair and base excision repair. Resolves abortive DNA ligation intermediates formed either at base excision sites, or when DNA ligases attempt to repair non-ligatable breaks induced by reactive oxygen species. Catalyzes the release of adenylate groups covalently linked to 5'-phosphate termini, resulting in the production of 5'-phosphate termini that can be efficiently rejoined. Also able to hydrolyze adenosine 5'-monophosphoramidate (AMP-NH2) and diadenosine tetraphosphate (AppppA), but with lower catalytic activity.
Specificity
Natural and recombinant Rat Aprataxin
Subcellular Location
Nucleus nucleoplasm Nucleus nucleolus Upon genotoxic stress, colocalizes with XRCC1 at sites of DNA damage. Colocalizes with MDC1 at sites of DNA double-strand breaks. Interaction with NCL is required for nucleolar localization.
"Identification of FHA-HIT as a novel nuclear protein involved in cell-cycle regulation." Huang C.-H., Chen H., Peng J., Chen Y. Submitted (2001-07) to the EMBL/GenBank/DDBJ databases
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