Disease:Defects in RAD51 are associated with breast cancer (BC) [MIM:114480]. ,Function:May participate in a common DNA damage response pathway associated with the activation of homologous recombination and double-strand break repair. Binds to single and double stranded DNA and exhibits DNA-dependent ATPase activity. Underwinds duplex DNA and forms helical nucleoprotein filaments. ,PTM:Phosphorylated. Phosphorylation of Thr-309 by CHEK1/CHK1 may enhance association with chromatin at sites of DNA damage and promote DNA repair by homologous recombination. ,similarity:Belongs to the recA family. ,similarity:Belongs to the recA family. RAD51 subfamily. ,similarity:Contains 1 HhH domain. ,subcellular location:Colocalizes with RAD51AP1 to multiple nuclear foci upon induction of DNA damage. ,subunit:Interacts with BRCA1 , BRCA2 and either directly or indirectly with p53. Interacts with XRCC3 , RAD54L and RAD54B. Part of a complex with RAD51C and RAD51B. Interacts with RAD51AP1 and RAD51AP2. Interacts with CHEK1/CHK1 , and this may require prior phosphorylation of CHEK1. Interacts with the MND1-PSMC3IP heterodimer (By similarity) . Interacts with OBFC2B. ,tissue specificity:Highly expressed in testis and thymus , followed by small intestine , placenta , colon , pancreas and ovary. Weakly expressed in breast. ,
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