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STXBP5

Synonyms
LGL3, LLGL3, Nbla04300
External resources
Summary
Syntaxin 1 is a component of the 7S and 20S SNARE complexes which are involved in docking and fusion of synaptic vesicles with the presynaptic plasma membrane. This gene encodes a syntaxin 1 binding protein. In rat, a similar protein dissociates syntaxin 1 from the Munc18/n-Sec1/rbSec1 complex to form a 10S complex, an intermediate which can be converted to the 7S SNARE complex. Thus this protein is thought to be involved in neurotransmitter release by stimulating SNARE complex formation. Alternatively spliced transcript variants encoding different isoforms have been identified.

Variant counts

The variants found in rare patients tested by 3billion are classified and counted according to ACMG guidelines. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
2
Likely pathogenic
0
VUS
4,106
Likely benign
4,096
Benign
0

Patient phenotypes

Proportions of phenotypes among 2 patients carrying pathogenic or likely pathogenic variants on STXBP5 gene are displayed below.

Phenotype class
Patients in 3billion (%)
Abnormality of blood and blood-forming tissues
50%
Abnormality of head or neck
50%
Abnormality of the cardiovascular system
50%
Abnormality of the digestive system
50%
Abnormality of the ear
50%
Abnormality of the immune system
50%
Abnormality of the integument
50%
Abnormality of the musculoskeletal system
50%
Abnormality of the nervous system
50%
Growth abnormality
50%
Abnormal cellular phenotype
0%
Abnormality of limbs
0%
Abnormality of metabolism homeostasis
0%
Abnormality of prenatal development or birth
0%
Abnormality of the breast
0%
Abnormality of the endocrine system
0%
Abnormality of the eye
0%
Abnormality of the genitourinary system
0%
Abnormality of the respiratory system
0%
Abnormality of the thoracic cavity
0%
Abnormality of the voice
0%
Constitutional symptom
0%
Neoplasm
0%

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