U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

SYT2 synaptotagmin 2 [ Homo sapiens (human) ]

Gene ID: 127833, updated on 2-Nov-2024

Summary

Go to the top of the page Help
Official Symbol
SYT2provided by HGNC
Official Full Name
synaptotagmin 2provided by HGNC
Primary source
HGNC:HGNC:11510
See related
Ensembl:ENSG00000143858 MIM:600104; AllianceGenome:HGNC:11510
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
CMS7; CMS7A; CMS7B; MYSPC; SytII
Summary
This gene encodes a synaptic vesicle membrane protein. The encoded protein is thought to function as a calcium sensor in vesicular trafficking and exocytosis. Mutations in this gene are associated with myasthenic syndrome, presynaptic, congenital, with or without motor neuropathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014]
Expression
Broad expression in brain (RPKM 1.4), adrenal (RPKM 1.3) and 17 other tissues See more
Orthologs
mouse all
NEW
Try the new Gene table
Try the new Transcript table

Genomic context

Go to the top of the page Help
See SYT2 in Genome Data Viewer
Location:
1q32.1
Exon count:
11
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 1 NC_000001.11 (202590596..202710454, complement)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 1 NC_060925.1 (201852402..201972645, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 1 NC_000001.10 (202559724..202679582, complement)

Chromosome 1 - NC_000001.11Genomic Context describing neighboring genes Neighboring gene protein phosphatase 1 regulatory subunit 12B Neighboring gene ribosomal protein S27 pseudogene 8 Neighboring gene Sharpr-MPRA regulatory region 4568 Neighboring gene Sharpr-MPRA regulatory region 13016 Neighboring gene small nucleolar RNA SNORA70 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr1:202536800-202537472 Neighboring gene Sharpr-MPRA regulatory region 13308 Neighboring gene BRD4-independent group 4 enhancer GRCh37_chr1:202557917-202559116 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202560242-202561068 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr1:202591842-202592466 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 1702 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202606743-202607308 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202611908-202612840 Neighboring gene ReSE screen-validated silencer GRCh37_chr1:202626482-202626641 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202627175-202627676 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202640443-202640943 Neighboring gene ReSE screen-validated silencer GRCh37_chr1:202645972-202646140 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202671295-202671794 Neighboring gene lysine demethylase 5B Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202764986-202765486 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:202765487-202765987 Neighboring gene COX7C pseudogene 2 Neighboring gene solute carrier family 25 member 39 pseudogene 1

Genomic regions, transcripts, and products

Go to the top of the page Help

Go to nucleotide: Graphics FASTA GenBank

Expression

Go to the top of the page Help
  • Project title: HPA RNA-seq normal tissues HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

Go to the top of the pageHelp

Related articles in PubMed

  1. Identification of a Novel de Novo Variant in the SYT2 Gene Causing a Rare Type of Distal Hereditary Motor Neuropathy. Mironovich O, et al. Genes (Basel), 2020 Oct 22. PMID 33105646, Free PMC Article
  2. Biallelic loss of function variants in SYT2 cause a treatable congenital onset presynaptic myasthenic syndrome. Donkervoort S, et al. Am J Med Genet A, 2020 Oct. PMID 32776697, Free PMC Article
  3. Synaptotagmin II negatively regulates Ca2+-triggered exocytosis of lysosomes in mast cells. Baram D, et al. J Exp Med, 1999 May 17. PMID 10330444, Free PMC Article
  4. Recessive congenital myasthenic syndrome caused by a homozygous mutation in SYT2 altering a highly conserved C-terminal amino acid sequence. Maselli RA, et al. Am J Med Genet A, 2020 Jul. PMID 32250532
  5. Membrane topogenesis of a type I signal-anchor protein, mouse synaptotagmin II, on the endoplasmic reticulum. Kida Y, et al. J Cell Biol, 2000 Aug 21. PMID 10952998, Free PMC Article

See all (44) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Identification of a Novel de Novo Variant in the SYT2 Gene Causing a Rare Type of Distal Hereditary Motor Neuropathy.
    Title: Identification of a Novel de Novo Variant in the SYT2 Gene Causing a Rare Type of Distal Hereditary Motor Neuropathy.
  2. Biallelic loss of function variants in SYT2 cause a treatable congenital onset presynaptic myasthenic syndrome.
    Title: Biallelic loss of function variants in SYT2 cause a treatable congenital onset presynaptic myasthenic syndrome.
  3. Recessive congenital myasthenic syndrome caused by a homozygous mutation in SYT2 altering a highly conserved C-terminal amino acid sequence.
    Title: Recessive congenital myasthenic syndrome caused by a homozygous mutation in SYT2 altering a highly conserved C-terminal amino acid sequence.
  4. the extended synaptotagmins (E-Syts), endoplasmic reticulum (ER) proteins that function as PtdIns(4,5)P2- and Ca(2+)-regulated tethers to the Pplasma membrane.
    Title: Control of plasma membrane lipid homeostasis by the extended synaptotagmins.
  5. SYT2 mutations cause a novel complex presynaptic congenital myasthenic syndrome characterized by motor neuropathy causing lower limb wasting and foot deformities, reflex potentiation following exercise and a prolonged period of posttetanic potentiation
    Title: Electrophysiologic features of SYT2 mutations causing a treatable neuromuscular syndrome.
  6. Synaptotagmin 2 mutations cause an autosomal-dominant form of lambert-eaton myasthenic syndrome and nonprogressive motor neuropathy.
    Title: Synaptotagmin 2 mutations cause an autosomal-dominant form of lambert-eaton myasthenic syndrome and nonprogressive motor neuropathy.
  7. Human SytII is not an effective receptor for Botulinum neurotoxin D-C.
    Title: Botulinum neurotoxin D-C uses synaptotagmin I and II as receptors, and human synaptotagmin II is not an effective receptor for type B, D-C and G toxins.
  8. synaptotagmin-II is not a high affinity receptor for BoNT/B and G due to a phenylalanine to leucine mutation in its luminal domain present only in humans and chimpanzees
    Title: Human synaptotagmin-II is not a high affinity receptor for botulinum neurotoxin B and G: increased therapeutic dosage and immunogenicity.
  9. Mutation of overexpressed Syt2 transgene leaves intrinsic calcium sensitivity of vesicles intact while it destabilizes the readily releasable pool of vesicles and loosens the tight coupling between calcium influx and release.
    Title: Synaptotagmin has an essential function in synaptic vesicle positioning for synchronous release in addition to its role as a calcium sensor.
  10. A recombinant fragment from the luminal domain of the human receptor protein syt II can bind specifically to botulinum neurotoxin B and its Hc domain.
    Title: Dominant antigenic peptides located at the heavy chain terminal of botulinum neurotoxin B contain receptor-binding sites for synaptotagmin II.
Submit: New GeneRIF Correction See all GeneRIFs (13)

Phenotypes

Go to the top of the page Help

Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description Tests
Congenital myasthenic syndrome 7
MedGen: C4015038 OMIM: 616040 GeneReviews: Congenital Myasthenic Syndromes Overview
not available
Myasthenic syndrome, congenital, 7B, presynaptic, autosomal recessive
MedGen: C5561947 OMIM: 619461 GeneReviews: Not available
not available

EBI GWAS Catalog

Description
A possible mechanism behind autoimmune disorders discovered by genome-wide linkage and association analysis in celiac disease.
EBI GWAS Catalog

Variation

Go to the top of the page Help

See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Pathways from PubChem

Go to the top of the page

Interactions

Go to the top of the page Help
Products Interactant Other Gene Complex Source Pubs Description

General gene information

Go to the top of the page Help

Markers

Homology

Clone Names

  • FLJ42519

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables SNARE binding IBA
Inferred from Biological aspect of Ancestor
more info
  
enables calcium ion sensor activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables calcium-dependent phospholipid binding IBA
Inferred from Biological aspect of Ancestor
more info
  
enables calcium-dependent phospholipid binding ISS
Inferred from Sequence or Structural Similarity
more info
  
enables inositol 1,3,4,5 tetrakisphosphate binding ISS
Inferred from Sequence or Structural Similarity
more info
  
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in calcium-dependent activation of synaptic vesicle fusion IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in cell differentiation IEA
Inferred from Electronic Annotation
more info
  
involved_in positive regulation of dendrite extension IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in regulation of calcium ion-dependent exocytosis IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in regulation of synaptic vesicle exocytosis IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in vesicle-mediated transport IBA
Inferred from Biological aspect of Ancestor
more info
  
Component Evidence Code Pubs
is_active_in axon IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in chromaffin granule membrane IEA
Inferred from Electronic Annotation
more info
  
located_in clathrin-coated endocytic vesicle membrane TAS
Traceable Author Statement
more info
  
is_active_in dense core granule IBA
Inferred from Biological aspect of Ancestor
more info
  
is_active_in exocytic vesicle IBA
Inferred from Biological aspect of Ancestor
more info
  
is_active_in plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in plasma membrane TAS
Traceable Author Statement
more info
  
is_active_in synaptic vesicle membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in synaptic vesicle membrane TAS
Traceable Author Statement
more info
  

General protein information

Go to the top of the page Help
Preferred Names
synaptotagmin-2
Names
synaptotagmin II

NCBI Reference Sequences (RefSeq)

Go to the top of the page Help

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_041776.1 RefSeqGene

    Range
    4970..124828
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001136504.1 → NP_001129976.1  synaptotagmin-2

    See identical proteins and their annotated locations for NP_001129976.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR compared to variant 1. Both variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC118556, AK094430, BC100815
    Consensus CDS
    CCDS1427.1
    UniProtKB/Swiss-Prot
    Q496K5, Q8N9I0, Q8NBE5
    Related
    ENSP00000356236.1, ENST00000367267.5
    Conserved Domains (2) summary
    cd08385
    Location:139 → 261
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:271 → 406
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1

  2. NM_177402.5 → NP_796376.2  synaptotagmin-2

    See identical proteins and their annotated locations for NP_796376.2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the more prevalent variant. Both variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC104463, AC118556, BC100815, DA098279
    Consensus CDS
    CCDS1427.1
    UniProtKB/Swiss-Prot
    Q496K5, Q8N9I0, Q8NBE5
    Related
    ENSP00000356237.4, ENST00000367268.5
    Conserved Domains (2) summary
    cd08385
    Location:139 → 261
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:271 → 406
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000001.11 Reference GRCh38.p14 Primary Assembly

    Range
    202590596..202710454 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_011509192.3 → XP_011507494.1  synaptotagmin-2 isoform X3

    See identical proteins and their annotated locations for XP_011507494.1

    Conserved Domains (3) summary
    cd08385
    Location:142 → 264
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:274 → 409
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1
    cd21964
    Location:4 → 113
    Syt2_N; N-terminal domain of synaptotagmin-2 (Syt2) and similar proteins

  2. XM_017000312.2 → XP_016855801.1  synaptotagmin-2 isoform X3

    Conserved Domains (3) summary
    cd08385
    Location:142 → 264
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:274 → 409
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1
    cd21964
    Location:4 → 113
    Syt2_N; N-terminal domain of synaptotagmin-2 (Syt2) and similar proteins

  3. XM_017000313.2 → XP_016855802.1  synaptotagmin-2 isoform X4

    UniProtKB/Swiss-Prot
    Q496K5, Q8N9I0, Q8NBE5
    Conserved Domains (2) summary
    cd08385
    Location:139 → 261
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:271 → 406
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1

  4. XM_017000311.3 → XP_016855800.1  synaptotagmin-2 isoform X3

    Conserved Domains (3) summary
    cd08385
    Location:142 → 264
    C2A_Synaptotagmin-1-5-6-9-10; C2A domain first repeat present in Synaptotagmins 1, 5, 6, 9, and 10
    cd08402
    Location:274 → 409
    C2B_Synaptotagmin-1; C2 domain second repeat present in Synaptotagmin 1
    cd21964
    Location:4 → 113
    Syt2_N; N-terminal domain of synaptotagmin-2 (Syt2) and similar proteins

  5. XM_017000310.3 → XP_016855799.1  synaptotagmin-2 isoform X2

  6. XM_017000309.3 → XP_016855798.1  synaptotagmin-2 isoform X1

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060925.1 Alternate T2T-CHM13v2.0

    Range
    201852402..201972645 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054334403.1 → XP_054190378.1  synaptotagmin-2 isoform X3

  2. XM_054334402.1 → XP_054190377.1  synaptotagmin-2 isoform X3

  3. XM_054334404.1 → XP_054190379.1  synaptotagmin-2 isoform X4

    UniProtKB/Swiss-Prot
    Q496K5, Q8N9I0, Q8NBE5

  4. XM_054334401.1 → XP_054190376.1  synaptotagmin-2 isoform X3

  5. XM_054334400.1 → XP_054190375.1  synaptotagmin-2 isoform X2

  6. XM_054334399.1 → XP_054190374.1  synaptotagmin-2 isoform X1

Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q8N9I0.2 GenPept UniProtKB/Swiss-Prot:Q8N9I0

Gene LinkOut

The following LinkOut resources are supplied by external providers. These providers are responsible for maintaining the links.

Chemical Information
Molecular Biology Databases
Research Materials
Tools
Miscellaneous