PPP4R2
Gene Information
- Official Symbol: PPP4R2
- Official Name: protein phosphatase 4 regulatory subunit 2
- Aliases and Previous Symbols: N/A
- Entrez ID: 151987
- UniProt: Q9NY27
- Interactions: BioGRID
- PubMed articles: Open PubMed
- OMIM: Open OMIM
Function Summary
- Entrez Summary: N/A
- UniProt Summary: Regulatory subunit of serine/threonine-protein phosphatase 4 (PP4). May regulate the activity of PPP4C at centrosomal microtubule organizing centers. Its interaction with the SMN complex leads to enhance the temporal localization of snRNPs, suggesting a role of PPP4C in maturation of spliceosomal snRNPs. The PPP4C-PPP4R2-PPP4R3A PP4 complex specifically dephosphorylates H2AFX phosphorylated on 'Ser-140' (gamma-H2AFX) generated during DNA replication and required for DNA double strand break repair. Mediates RPA2 dephosphorylation by recruiting PPP4C to RPA2 in a DNA damage-dependent manner. RPA2 dephosphorylation is required for the efficient RPA2-mediated recruitment of RAD51 to chromatin following double strand breaks, an essential step for DNA repair. {ECO:0000269|PubMed:10769191, ECO:0000269|PubMed:12668731, ECO:0000269|PubMed:18614045, ECO:0000269|PubMed:20154705}.
CRISPR Data
Essentiality in NALM6
- Essentiality Rank: 2931
- Expression level (log2 read counts): 7.02
PPP4R2 Expression in NALM6 Cells: 7.02
