Actin-related protein 2/3 complex subunit 2 (arc2) is a 317-residue protein from Schizosaccharomyces pombe (strain 972 / ATCC 24843). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O14241.
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The mean pLDDT of this model is 92.8 (very high overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.
| pLDDT band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 88% |
| 70 to 90 | Confident: backbone generally right | 7% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Functions as actin-binding component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks. Seems to contact the mother actin filament (By similarity)
Component of the Arp2/3 complex composed of arp2, act2, arc1/p41-ARC, arc2/p34-ARC, arc3/p21-ARC, arc4/p20-ARC and arc5/p16-ARC
Cytoplasm, cytoskeleton, actin patch
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8UXW | EM | 2.7 Å | D=1-317 |
| 8UXX | EM | 3.2 Å | D=1-317 |
| 8E9B | EM | 3.5 Å | D=1-317 |
| 3DWL | X-ray | 3.78 Å | D/I=1-317 |
| 6W17 | EM | 3.9 Å | D=1-317 |
| 6W18 | EM | 4.2 Å | D=1-317 |
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