ESYT1

protein-coding

extended synaptotagmin 1, the group of Extended synaptotagmins

Gene summary

Enables identical protein binding activity and phospholipid transfer activity. Involved in intermembrane lipid transfer. Located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Jul 2025]

Previous symbols:
  • FAM62A

MANE transcript

NM_015292.3

Inheritance

—

ClinVar variants

U:197B:8

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.47

Max pathogenic AF

—

Genomic locus

chr12:56,118,250-56,144,674

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~26.4 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ESYT1 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 184
not providedTotal: 4

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_015292.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
4
clinvar
4
clinvar
8
missense
185
clinvar
4
clinvar
189
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
8
clinvar
8
Total0019744205
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 55 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_015292.3RefSeqNP_056107.131MANE Select
ENST00000394048.10EnsemblENSP00000377612.531MANE Select
NM_001184796.2RefSeqNP_001171725.131Standard
ENST00000267113.4EnsemblENSP00000267113.431Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Metabolism of lipids
  • Metabolism
  • EGFR1
  • Glycosphingolipid metabolism
  • Sphingolipid metabolism

Biological Process

  • lipid transport
  • endoplasmic reticulum-plasma membrane tethering

Molecular Function

  • calcium ion binding
  • protein binding
  • calcium-dependent phospholipid binding
  • phosphatidylethanolamine binding
  • phosphatidylcholine binding

Cellular Component

  • endoplasmic reticulum
  • endoplasmic reticulum membrane
  • membrane
  • integral component of endoplasmic reticulum membrane
  • intrinsic component of endoplasmic reticulum membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000541590
Coding exons
31
Length
26422
Individuals with no LoFs
125601
Homozygous LoFs
1
Heterozygous LoFs
146
Defined
125748
p
0.000585
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.8465686280.9050.00003587145
Missense (PolyPhen)179224.10.798762577
Synonymous1.882102480.8480.00001292315
Loss of Function4.213472.80.4670.00000425748

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000370.00037rare
Latino/Admixed American0.000140.00014rare
Ashkenazi Jewish0.00400.0039notable
East Asian0.000330.00033rare
Finnish0.0000460.000046rare
European (Non-Finnish)0.000560.00055rare
South Asian0.000620.00062rare
Other0.00130.0013notable

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport (By similarity). Binds calcium (via the C2 domains) and translocates to sites of contact between the endoplasmic reticulum and the cell membrane in response to increased cytosolic calcium levels. Helps tether the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane. {ECO:0000250, ECO:0000269|PubMed:23791178, ECO:0000269|PubMed:24183667}.;

Recessive Scores

pRec
0.100

Intolerance Scores

LoFtool
0.930
RVIS EVS
-1.86
RVIS percentile EVS
2.02

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.354

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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