Q13884: Beta-1-syntrophin (SNTB1)

Beta-1-syntrophin (SNTB1) is a 538-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q13884.

Gene
SNTB1
Organism
Homo sapiens
Length
538 residues
Mean pLDDT
77.8
Model
AF-Q13884-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 77.8 (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 bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate49%
70 to 90Confident: backbone generally right25%
50 to 70Low: treat with caution9%
Below 50Very low: often disordered regions18%

What pLDDT means and how to read it

Function

Adapter protein that binds to and probably organizes the subcellular localization of a variety of membrane proteins. May link various receptors to the actin cytoskeleton and the dystrophin glycoprotein complex

Subunit structure

Monomer and homodimer (Probable). Interacts with the other members of the syntrophin family SNTA1 and SNTB2; with the sodium channel proteins SCN4A and SCN5A (By similarity). Interacts with the viral HTLV-1 TAX protein and with dystrophin protein DMD and related proteins DTNA and UTRN. Interacts with DTNB (By similarity)

Subcellular location

Cell membrane, sarcolemma, Cell junction, Cytoplasm, cytoskeleton

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
7P70X-ray2.0 ÅA=107-196
7PC4X-ray2.3 ÅA=107-196

More AlphaFold highlights

About this viewer

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