Replication Protein A (RPA) (also known as human single-stranded DNA binding protein, or HSSB) is involved in DNA replication, repair, and recombination. RPA from human cells is a stable heterotrimer of 70kDa, 32-34kDa, and 11-14kDa subunits (RPA70, RPA32, and RPA14 respectively). RPA is required for the SV40 large tumor antigen-catalyzed unwinding of SV40 DNA and stimulates DNA polymerase alpha and delta. RPA34 is phosphorylated at the G1/S boundary of the cell cycle or upon exposure of cells to DNA damage-inducing agents including ionizing and UV radiation.
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Protein Aliases: ASF/SF2-associated protein p32; C1q globular domain-binding protein; C1qBP; Complement component 1 Q subcomponent-binding protein, mitochondrial; complement component 1, q subcomponent binding protein; GC1q-R protein; Glycoprotein gC1qBP; Hyaluronan-binding protein 1; Mitochondrial matrix protein p32; p33; RPA; SF2AP32; splicing factor SF2-associated protein
Gene Aliases: AA407365; AA986492; C1QBP; D11Wsu182e; gC1Q-R; GC1QBP; gC1qR; HABP1; P32; SF2P32