SYT1

Chr 12

synaptotagmin 1

Also known as: BAGOS, P65, SVP65, SYT

This gene encodes a member of the synaptotagmin protein family. The synaptotagmins are integral membrane proteins of synaptic vesicles that serve as calcium sensors in the process of vesicular trafficking and exocytosis. The encoded protein participates in triggering neurotransmitter release at the synapse in response to calcium binding. Mutations in this gene are associated with Baker-Gordon syndrome. [provided by RefSeq, Jan 2023]

ResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtBaker-Gordon syndrome

Clinical highlights

Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Curated gene-level mechanism — a prior for triage, not a per-variant call.
1
Active trials
81
Pubs (1 yr)
P/LP submissions
P/LP missense
0.45
LOEUF
DN
Mechanism· predicted
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.45LOEUF
pLI 0.600
Z-score 3.35
OE 0.20 (0.100.45)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
2.84Z-score
OE missense 0.47 (0.410.56)
109 obs / 230.0 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios?
LoF OE?0.20 (0.100.45)
00.351.4
Missense OE?0.47 (0.410.56)
00.61.4
Synonymous OE?0.97
01.21.6
LoF obs/exp: 4 / 20.3Missense obs/exp: 109 / 230.0Syn Z: 0.23

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SYT1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.