Q8N300: Small vasohibin-binding protein (SVBP)

Small vasohibin-binding protein (SVBP) is a 66-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q8N300.

Gene
SVBP
Organism
Homo sapiens
Length
66 residues
Mean pLDDT
85.1
Model
AF-Q8N300-F1 v6
Model created
1 Aug 2025
PDB structures
24

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Model confidence (pLDDT)

The mean pLDDT of this model is 85.1 (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 bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate59%
70 to 90Confident: backbone generally right17%
50 to 70Low: treat with caution21%
Below 50Very low: often disordered regions3%

What pLDDT means and how to read it

Function

Enhances the tyrosine carboxypeptidase activity of VASH1 and VASH2, thereby promoting the removal of the C-terminal tyrosine residue of alpha-tubulin (PubMed:29146869, PubMed:31171830, PubMed:31235910, PubMed:31235911, PubMed:31270470, PubMed:31324789). This activity is critical for spindle function and accurate chromosome segregation during mitosis since microtubule detyrosination regulates mitotic spindle length and postioning (PubMed:31171830). Also required to enhance the solubility and secretion of VASH1 and VASH2 (PubMed:20736312, PubMed:27879017, PubMed:30607023). Plays a role in axon and excitatory synapse formation (PubMed:31235911)

Subunit structure

Interacts with VASH1 and VASH2

Subcellular location

Cytoplasm, Secreted, Cytoplasm, cytoskeleton

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
6J4PX-ray1.6 ÅB=1-66
6J7BX-ray1.62 ÅB=1-52
6OCGX-ray1.83 ÅB=26-51
6J8OX-ray1.85 ÅA=3-49
6J8NX-ray1.95 ÅA/C=1-66
6J4UX-ray2.0 ÅB=1-66
6OCHX-ray2.0 ÅB/D=25-52
6QBYX-ray2.09 ÅB/D=1-66
6J4VX-ray2.1 ÅB=1-66
6NVQX-ray2.1 ÅB=1-66
6OCFX-ray2.1 ÅB=18-66
6JZCX-ray2.2 ÅC/D=1-66
6J8FX-ray2.28 ÅA=3-48
6K81X-ray2.28 ÅB=1-66
6J4OX-ray2.3 ÅB=1-66
6LPGX-ray2.3 ÅB=2-66
6J9HX-ray2.31 ÅA/C=1-66
6JZDX-ray2.48 ÅB=1-66
6JZEX-ray2.51 ÅB=1-66
6J4QX-ray2.7 ÅB/D/G/K=1-66

Showing 20 of 24 experimental structures (best resolution first).

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