Summary

Name RPA2
Full Name Replication protein A 32 kDa subunit
Synonyms RP-A p32, Replication factor A protein 2, RF-A protein 2, Replication protein A 34 kDa subunit, RP-A p34 | REPA2, RPA32, RPA34
Primary ID P15927
Links - -
Type protein
Relations 23
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. Plays also 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.

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates activity img/direct_inhibition.png phosphorylation RPA2 0.605
Publications: 3 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation RPA2 0.523
Publications: 2 Organism: Homo Sapiens
+ img/unknown.png phosphorylation RPA2 0.746
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation RPA2 0.605
Publications: 3 Organism: In Vitro, Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation RPA2 0.2
Publications: 2 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation RPA2 0.803
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation RPA2 0.803
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation RPA2 0.605
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png polyubiquitination RPA2 0.453
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding RPA2 0.2
Publications: 1
+ down-regulates activity img/direct_inhibition.png binding RPA2 0.419
Publications: 1
+ up-regulates img/direct-activation.png binding MRE11 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png Nucleotide-excision_repair 0.7
Publications: 1
+ up-regulates activity img/direct-activation.png binding RPA2 0.5
Publications: 1
+ up-regulates img/direct-activation.png binding ATRIP 0.673
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png sumoylation RPA2 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding NBN 0.528
Publications: 1 Organism: Homo Sapiens