Aliases for XRCC3 Gene
External Ids for XRCC3 Gene
Previous GeneCards Identifiers for XRCC3 Gene
This gene encodes a member of the RecA/Rad51-related protein family that participates in homologous recombination to maintain chromosome stability and repair DNA damage. This gene functionally complements Chinese hamster irs1SF, a repair-deficient mutant that exhibits hypersensitivity to a number of different DNA-damaging agents and is chromosomally unstable. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]
GeneCards Summary for XRCC3 Gene
XRCC3 (X-Ray Repair Cross Complementing 3) is a Protein Coding gene. Diseases associated with XRCC3 include Melanoma, Cutaneous Malignant 6 and Breast Cancer. Among its related pathways are Resolution of D-loop Structures through Holliday Junction Intermediates and Fluoropyrimidine Activity. Gene Ontology (GO) annotations related to this gene include DNA-dependent ATPase activity and crossover junction endodeoxyribonuclease activity. An important paralog of this gene is RAD51B.
UniProtKB/Swiss-Prot Summary for XRCC3 Gene
Involved in the homologous recombination repair (HRR) pathway of double-stranded DNA, thought to repair chromosomal fragmentation, translocations and deletions. Part of the RAD21 paralog protein complex CX3 which acts in the BRCA1-BRCA2-dependent HR pathway. Upon DNA damage, CX3 acts downstream of RAD51 recruitment; the complex binds predominantly to the intersection of the four duplex arms of the Holliday junction (HJ) and to junctions of replication forks. Involved in HJ resolution and thus in processing HR intermediates late in the DNA repair process; the function may be linked to the CX3 complex and seems to involve GEN1 during mitotic cell cycle progression. Part of a PALB2-scaffolded HR complex containing BRCA2 and RAD51C and which is thought to play a role in DNA repair by HR. Plays a role in regulating mitochondrial DNA copy number under conditions of oxidative stress in the presence of RAD51 and RAD51C.