Latent-transforming growth factor beta-binding protein 1 (LTBP1) is a 1721-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q14766.
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The mean pLDDT of this model is 58.9 (low 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 | 1% |
| 70 to 90 | Confident: backbone generally right | 48% |
| 50 to 70 | Low: treat with caution | 10% |
| Below 50 | Very low: often disordered regions | 41% |
What pLDDT means and how to read it
Key regulator of transforming growth factor beta (TGFB1, TGFB2 and TGFB3) that controls TGF-beta activation by maintaining it in a latent state during storage in extracellular space (PubMed:2022183, PubMed:8617200, PubMed:8939931). Associates specifically via disulfide bonds with the Latency-associated peptide (LAP), which is the regulatory chain of TGF-beta, and regulates integrin-dependent activation of TGF-beta (PubMed:15184403, PubMed:8617200, PubMed:8939931). Outcompeted by LRRC32/GARP for binding to LAP regulatory chain of TGF-beta (PubMed:22278742)
Interacts with TGFB1; associates via disulfide bonds with the Latency-associated peptide chain (LAP) regulatory chain of TGFB1, leading to regulate activation of TGF-beta-1 (PubMed:10930463, PubMed:15567420, PubMed:2022183, PubMed:22278742, PubMed:8617200, PubMed:8939931). LTBP1 does not bind directly to TGF-beta-1, the active chain of TGFB1 (PubMed:10930463). Interacts (via C-terminal domain)…
Secreted, Secreted, extracellular space, extracellular matrix
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 1KSQ | NMR | A=1340-1412 |
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