Structural highlights
8p94 is a 28 chain structure with sequence from Amanita phalloides, Homo sapiens, Mus musculus and Sus scrofa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Method: | Electron Microscopy, Resolution 3.3Å |
| Ligands: | , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
ARPC3_HUMAN Component of the Arp2/3 complex, a multiprotein complex that mediates actin polymerization upon stimulation by nucleation-promoting factor (NPF) (PubMed:9230079). The Arp2/3 complex mediates the formation of branched actin networks in the cytoplasm, providing the force for cell motility (PubMed:9230079). 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: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).[1] [2]
References
- ↑ Schrank BR, Aparicio T, Li Y, Chang W, Chait BT, Gundersen GG, Gottesman ME, Gautier J. Nuclear ARP2/3 drives DNA break clustering for homology-directed repair. Nature. 2018 Jul;559(7712):61-66. PMID:29925947 doi:10.1038/s41586-018-0237-5
- ↑ Welch MD, DePace AH, Verma S, Iwamatsu A, Mitchison TJ. The human Arp2/3 complex is composed of evolutionarily conserved subunits and is localized to cellular regions of dynamic actin filament assembly. J Cell Biol. 1997 Jul 28;138(2):375-84. PMID:9230079 doi:10.1083/jcb.138.2.375
