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STXBP1

Chr 9q34.11

syntaxin binding protein 1

Aliases:
hUNC18, MUNC18-1, UNC18, rbSec1, nSec1
MANE:
ENST00000373299.5

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Early onset or syndromic epilepsy

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Intellectual disability

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Clefting

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Fetal anomalies

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Mitochondrial disorders

Disease associations (Open Targets)

  • developmental and epileptic encephalopathy, 4

    0.85
  • early-infantile DEE

    0.73
  • genetic developmental and epileptic encephalopathy

    0.65
  • Intellectual disability

    0.60
  • hereditary disease

    0.55
  • developmental and epileptic encephalopathy

    0.54
  • infantile epilepsy syndrome

    0.54
  • Epileptic encephalopathy

    0.53
  • Seizure

    0.50
  • Global developmental delay

    0.47

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Syntaxin-binding protein 1

Participates in the regulation of synaptic vesicle docking and fusion through interaction with GTP-binding proteins (By similarity). Essential for neurotransmission and binds syntaxin, a component of the synaptic vesicle fusion machinery probably in a 1:1 ratio. Can interact with syntaxins 1, 2, and 3 but not syntaxin 4. Involved in the release of neurotransmitters from neurons through interacting with SNARE complex component STX1A and mediating the assembly of the SNARE complex at synaptic membranes (By similarity). May play a role in determining the specificity of intracellular fusion reactions

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.