RFA2 Antibody – Rabbit

RFA2: Required for DNA recombination, repair and replication. The activity of RP-A is mediated by single-stranded DNA binding and protein interactions. Required for the efficient recruitment of the DNA double-strand break repair factor RAD51 to chromatin in response to DNA damage. Heterotrimer of 70, 32 and 14 kDa chains (canonical replication protein A complex). Component of the alternative replication protein A complex (aRPA) composed of RPA1, RPA3 and RPA4. The DNA-binding activity may reside exclusively on the 70 kDa subunit. Binds to SERTAD3/RBT1. Interacts with TIPIN. Directly interacts with PPP4R2, but not with SMEK2; this interaction is DNA damage-dependent and leads RPA2 dephosphorylation by PPP4C recruitment. Interacts with RAD51, preferentially when hyperphosphorylated. Directly interacts with RFWD3. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: DNA replication

Chromosomal Location of Human Ortholog: 1p35

Cellular Component: nucleoplasm; chromosome, telomeric region; PML body; DNA replication factor A complex; nucleus

Molecular Function: protein binding; enzyme binding; ubiquitin protein ligase binding; damaged DNA binding; protein N-terminus binding; protein phosphatase binding; single-stranded DNA binding

Biological Process: G1 DNA damage checkpoint; mismatch repair; DNA strand elongation during DNA replication; DNA repair; double-strand break repair via homologous recombination; telomere maintenance via semi-conservative replication; DNA recombinase assembly; base-excision repair; nucleotide-excision repair; transcription-coupled nucleotide-excision repair; double-strand break repair; telomere maintenance via recombination; nucleotide-excision repair, DNA damage removal; nucleotide-excision repair, DNA gap filling; mitotic cell cycle; DNA replication; telomere maintenance; G1/S transition of mitotic cell cycle