Signal recognition particle receptor subunit beta (Srprb) is a 269-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P47758.
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The mean pLDDT of this model is 87.1 (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 | 67% |
| 70 to 90 | Confident: backbone generally right | 20% |
| 50 to 70 | Low: treat with caution | 7% |
| Below 50 | Very low: often disordered regions | 6% |
What pLDDT means and how to read it
Component of the SRP (signal recognition particle) receptor (PubMed:7844142). Ensures, in conjunction with the signal recognition particle, the correct targeting of the nascent secretory proteins to the endoplasmic reticulum membrane system (PubMed:7844142). May mediate the membrane association of SR (PubMed:7844142)
Heterodimer with SRPRA
Endoplasmic reticulum membrane
Compare the prediction with experimentally determined structures of the same protein:
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