SH3 domain-binding protein 1 (SH3BP1) is a 701-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9Y3L3.
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The mean pLDDT of this model is 70.8 (confident 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 | 42% |
| 70 to 90 | Confident: backbone generally right | 16% |
| 50 to 70 | Low: treat with caution | 7% |
| Below 50 | Very low: often disordered regions | 35% |
What pLDDT means and how to read it
GTPase activating protein (GAP) which specifically converts GTP-bound Rho-type GTPases including RAC1 and CDC42 in their inactive GDP-bound form. By specifically inactivating RAC1 at the leading edge of migrating cells, it regulates the spatiotemporal organization of cell protrusions which is important for proper cell migration (PubMed:21658605). Also negatively regulates CDC42 in the process of actin remodeling and the formation of epithelial cell junctions (PubMed:22891260). Through its GAP activity toward RAC1 and/or CDC42 plays a specific role in phagocytosis of large particles. Specifically recruited by a PI3 kinase/PI3K-dependent mechanism to sites of large particles engagement,…
Interacts with RAC1 (By similarity). Interacts with the exocyst via EXOC4 and EXOC8; required for the localization of both SH3BP1 and the exocyst to the leading edge of migrating cells (PubMed:21658605). Interacts with CD2AP and CGNL1; probably part of a complex at cell junctions (PubMed:22891260). Interacts with CAPZA1; recruits CAPZA1 to forming cell junctions (PubMed:22891260). May interact…
Cell projection, Cell junction, tight junction, Cell junction, adherens junction, Cell projection, phagocytic cup, Nucleus, Cytoplasm, cytosol
Compare the prediction with experimentally determined structures of the same protein:
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