RPA, P70 (RPA1) Antibody – Rabbit Polyclonal

RPA1: Plays an essential role in several cellular processes in DNA metabolism including replication, recombination and DNA repair. Binds and subsequently stabilizes single-stranded DNA intermediates and thus prevents complementary DNA from reannealing. Heterotrimer composed of RPA1, RPA2 and RPA3 (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 RPA1 subunit. Interacts with RIPK1 and XPA. Interacts with RPA4. Interacts with the polymerase alpha subunit POLA1/p180; this interaction stabilizes the replicative complex and reduces the misincorporation rate of DNA polymerase alpha by acting as a fidelity clamp. Interact with RAD51 and SENP6 to regulate DNA repair. Interacts with HELB; this interaction promotes HELB recruitement to chromatin following DNA damage. Belongs to the replication factor A protein 1 family.

Protein type: DNA-binding

Chromosomal Location of Human Ortholog: 17p13.3

Cellular Component: nucleoplasm; male germ cell nucleus; lateral element; PML body; DNA replication factor A complex; nucleus

Molecular Function: protein binding; metal ion binding; damaged DNA binding; chromatin binding; single-stranded DNA binding

Biological Process: meiosis; mismatch repair; in utero embryonic development; DNA strand elongation during DNA replication; DNA repair; double-strand break repair via homologous recombination; DNA recombination; telomere maintenance via semi-conservative replication; DNA recombinase assembly; nucleotide-excision repair; homeostasis of number of cells within a tissue; base-excision repair; double-strand break repair; transcription-coupled nucleotide-excision repair; positive regulation of cell proliferation; telomere maintenance via recombination; nucleotide-excision repair, DNA damage removal; hemopoiesis; mitotic cell cycle; nucleotide-excision repair, DNA gap filling; DNA-dependent DNA replication; DNA replication; telomere maintenance; G1/S transition of mitotic cell cycle