RPA2 — Replication protein A2
RPA2 belongs to a gene co-expression module in 3 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
RPA2's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Gamma-delta T cells | Actin Remodeling Cytoskeletal | AP1M1, APOBEC3C, ATP5PB, CAP1, CAPN1, CAPZB, DBNL, LSP1 +10 more | |
| Innate lymphoid cells | Oxidative Phosphorylation Mitochondrial & OxPhos | APEX1, ATP5F1A, CCNC, COA3, DMAC1, ESD, HDAC2, HINT2 +15 more | View in SCUBA |
| Mucosal-associated invariant T cell | T cell Homeostasis Housekeeping | ATP5PB, COPZ1, FERMT3, GPS1, HMGN4, ICAM2, LAMTOR2, LCK +14 more |
About the gene
| Chromosome | 1: 27891524-27914746 |
|---|---|
| Predicted location | Intracellular |
| Essential gene | Yes |
| Protein class | Cancer-related genes, Essential proteins, Plasma proteins, Predicted intracellular proteins |
| Molecular function | DNA-binding |
| Biological process | DNA damage, DNA recombination, DNA repair, DNA replication |
Function
As part of the heterotrimeric replication protein A complex (RPA/RP-A), binds and stabilizes single-stranded DNA intermediates that form during DNA replication or upon DNA stress. It prevents their reannealing and in parallel, recruits and activates different proteins and complexes involved in DNA metabolism. Thereby, it plays an essential role both in DNA replication and the cellular response to DNA damage. In the cellular response to DNA damage, the RPA complex controls DNA repair and DNA damage checkpoint activation. Through recruitment of ATRIP activates the ATR kinase a master regulator of the DNA damage response. It is required for the recruitment of the DNA double-strand break repair factors RAD51 and RAD52 to chromatin in response to DNA damage. Also recruits to sites of DNA damage proteins like XPA and XPG that are involved in nucleotide excision repair and is required for this mechanism of DNA repair. Also plays a role in base excision repair (BER) probably through interaction with UNG. Also recruits SMARCAL1/HARP, which is involved in replication fork restart, to sites of DNA damage. May also play a role in telomere maintenance. RPA stimulates 5'-3' helicase activity of BRIP1/FANCJ.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.