Summary

Name ACTR2
Full Name Actin-related protein 2
Synonyms Actin-like protein 2 | ARP2
Primary ID P61160
Links - -
Type protein
Relations 3
Function ATP-binding component of the Arp2/3 complex, a multiprotein complex that mediates actin polymerization upon stimulation by nucleation-promoting factor (NPF) (PubMed:9000076). The Arp2/3 complex mediates the formation of branched actin networks in the cytoplasm, providing the force for cell motility (PubMed:9000076). Seems to contact the pointed end of the daughter actin filament (PubMed:9000076). In podocytes, required for the formation of lamellipodia downstream of AVIL and PLCE1 regulation (PubMed:29058690). In addition to its role in the cytoplasmic cytoskeleton, the Arp2/3 complex also promotes actin polymerization in the nucleus, thereby regulating gene transcription and repair of damaged DNA (PubMed:17220302, PubMed:29925947). The Arp2/3 complex promotes homologous recombination (HR) repair in response to DNA damage by promoting nuclear actin polymerization, leading to drive motility of double-strand breaks (DSBs) (PubMed:29925947).

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Relations

Regulator Mechanism target score
+ up-regulates img/direct-activation.png binding ACTR2 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding ACTR2 0.294
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding ARP2/3 0.926
Publications: 1 Organism: Homo Sapiens