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Syn2 synapsin II [ Mus musculus (house mouse) ]

Gene ID: 20965, updated on 2-Nov-2024

Summary

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Official Symbol
Syn2provided by MGI
Official Full Name
synapsin IIprovided by MGI
Primary source
MGI:MGI:103020
See related
Ensembl:ENSMUSG00000009394 AllianceGenome:MGI:103020
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Mus musculus
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as
2900074L19Rik
Summary
Enables identical protein binding activity. Involved in calcium-ion regulated exocytosis and synaptic vesicle clustering. Acts upstream of or within neurotransmitter secretion. Located in plasma membrane; postsynaptic density; and synaptic vesicle membrane. Part of SNARE complex. Is active in Schaffer collateral - CA1 synapse and glutamatergic synapse. Is expressed in several structures, including central nervous system; eye; genitourinary system; intercostal muscle; and nerve. Used to study autism spectrum disorder and epilepsy. Human ortholog(s) of this gene implicated in schizophrenia. Orthologous to human SYN2 (synapsin II). [provided by Alliance of Genome Resources, Nov 2024]
Expression
Biased expression in frontal lobe adult (RPKM 55.8), cortex adult (RPKM 52.0) and 10 other tissues See more
Orthologs
human all
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Genomic context

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See Syn2 in Genome Data Viewer
Location:
6 E3; 6 53.2 cM
Exon count:
14
Annotation release Status Assembly Chr Location
RS_2024_02 current GRCm39 (GCF_000001635.27) 6 NC_000072.7 (115111863..115259587)
108.20200622 previous assembly GRCm38.p6 (GCF_000001635.26) 6 NC_000072.6 (115134902..115282626)

Chromosome 6 - NC_000072.7Genomic Context describing neighboring genes Neighboring gene predicted gene, 36190 Neighboring gene predicted gene, 17733 Neighboring gene transcriptional adaptor 1 pseudogene Neighboring gene tissue inhibitor of metalloproteinase 4 Neighboring gene predicted gene, 38877 Neighboring gene predicted gene, 38878

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: Mouse ENCODE transcriptome data Mouse ENCODE transcriptome data
  • Description: RNA profiling data sets generated by the Mouse ENCODE project.
  • BioProject: PRJNA66167
  • Publication: PMID 25409824
  • Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. The interaction of Synapsin 2a and Synaptogyrin-3 regulates fear extinction in mice.
    Title: The interaction of Synapsin 2a and Synaptogyrin-3 regulates fear extinction in mice.
  2. Early endocannabinoid-mediated depolarization-induced suppression of excitation delays the appearance of the epileptic phenotype in synapsin II knockout mice.
    Title: Early endocannabinoid-mediated depolarization-induced suppression of excitation delays the appearance of the epileptic phenotype in synapsin II knockout mice.
  3. Synapsin II regulates synaptic transmission and neurite growth in cultured hippocampal neurons.
    Title: Growth and excitability at synapsin II deficient hippocampal neurons.
  4. results reveal a permissive contribution of Syn2 to the expression of normal socio-communicative behavior
    Title: The Knockout of Synapsin II in Mice Impairs Social Behavior and Functional Connectivity Generating an ASD-like Phenotype.
  5. These results reveal a new SynII function in the regulation of the time course of GABA release and demonstrate that this function is dependent on the interneuron subtype.
    Title: Synapsin II Regulation of GABAergic Synaptic Transmission Is Dependent on Interneuron Subtype.
  6. This study demonstrated that synapsin 2 regulating GABA Release from Hippocampal Interneurons.
    Title: Synapsin Isoforms Regulating GABA Release from Hippocampal Interneurons.
  7. Pharmacological and knockdown experiments showed that activation of sympathetic neurons by SCFA propionate involves SCFA receptor GPR41 linking to Gbetagamma-PLCbeta3-ERK1/2-synapsin 2
    Title: Short-chain fatty acid receptor GPR41-mediated activation of sympathetic neurons involves synapsin 2b phosphorylation.
  8. Deletion of synapsin II, a presynaptic protein contributing to epilepsy predisposition in humans, leads to a loss of tonic inhibition in mouse hippocampal slices due to a dramatic decrease in presynaptic asynchronous GABA release.
    Title: Asynchronous GABA Release Is a Key Determinant of Tonic Inhibition and Controls Neuronal Excitability: A Study in the Synapsin II-/- Mouse.
  9. This study demonostrated that Epileptic synapsin triple knockout mice exhibit progressive long-term aberrant plasticity in the entorhinal cortex.
    Title: Epileptic synapsin triple knockout mice exhibit progressive long-term aberrant plasticity in the entorhinal cortex.
  10. In synapsin II(-) hippocampal neurons an overexcitable phenotype was observed.
    Title: Synapsin II and Rab3a cooperate in the regulation of epileptic and synaptic activity in the CA1 region of the hippocampus.
Submit: New GeneRIF Correction See all GeneRIFs (36)

Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics  (MGI)
  • Endonuclease-mediated (2) 
  • Targeted (3)  1 citation

Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Homology

Gene Ontology Provided by MGI

Function Evidence Code Pubs
enables ATP binding IEA
Inferred from Electronic Annotation
more info
  
enables calcium-dependent protein binding ISO
Inferred from Sequence Orthology
more info
  
enables identical protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in calcium-ion regulated exocytosis IMP
Inferred from Mutant Phenotype
more info
 PubMed 
acts_upstream_of_or_within neurotransmitter secretion IGI
Inferred from Genetic Interaction
more info
 PubMed 
acts_upstream_of_or_within neurotransmitter secretion IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in synapse organization IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in synaptic vesicle clustering IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in synaptic vesicle clustering IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in synaptic vesicle clustering IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in synaptic vesicle cycle IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in synaptic vesicle cycle IMP
Inferred from Mutant Phenotype
more info
 PubMed 
Component Evidence Code Pubs
part_of SNARE complex IDA
Inferred from Direct Assay
more info
 PubMed 
is_active_in Schaffer collateral - CA1 synapse IDA
Inferred from Direct Assay
more info
 PubMed 
is_active_in Schaffer collateral - CA1 synapse IMP
Inferred from Mutant Phenotype
more info
 PubMed 
is_active_in extrinsic component of synaptic vesicle membrane ISO
Inferred from Sequence Orthology
more info
  
is_active_in glutamatergic synapse IDA
Inferred from Direct Assay
more info
 PubMed 
located_in glutamatergic synapse IDA
Inferred from Direct Assay
more info
 PubMed 
is_active_in glutamatergic synapse IMP
Inferred from Mutant Phenotype
more info
 PubMed 
located_in myelin sheath HDA PubMed 
located_in plasma membrane IDA
Inferred from Direct Assay
more info
 PubMed 
is_active_in plasma membrane IPI
Inferred from Physical Interaction
more info
 PubMed 
located_in postsynaptic density IDA
Inferred from Direct Assay
more info
 PubMed 
located_in synapse IDA
Inferred from Direct Assay
more info
 PubMed 
located_in synaptic vesicle ISO
Inferred from Sequence Orthology
more info
  
is_active_in synaptic vesicle membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in synaptic vesicle membrane IDA
Inferred from Direct Assay
more info
 PubMed 

General protein information

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Preferred Names
synapsin-2

NCBI Reference Sequences (RefSeq)

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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.

mRNA and Protein(s)

  1. NM_001111015.1 → NP_001104485.1  synapsin-2 isoform IIa

    See identical proteins and their annotated locations for NP_001104485.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (IIa) encodes the longer isoform (IIa).
    Source sequence(s)
    AC147047, AC153907, BC066004, BY705489
    Consensus CDS
    CCDS51874.1
    UniProtKB/Swiss-Prot
    Q64332, Q6NZR0, Q9QWV7
    Related
    ENSMUSP00000009538.6, ENSMUST00000009538.12
    Conserved Domains (3) summary
    pfam02078
    Location:116 → 213
    Synapsin; Synapsin, N-terminal domain
    pfam02750
    Location:215 → 417
    Synapsin_C; Synapsin, ATP binding domain
    pfam10581
    Location:2 → 30
    Synapsin_N; Synapsin N-terminal

  2. NM_001326560.1 → NP_001313489.1  synapsin-2 isoform IIc

    Status: VALIDATED

    Description
    Transcript Variant: This variant (IIc) differs in the 5' and 3' UTRs and has multiple coding region differences, including an alternate start codon and novel 3' coding region, compared to variant 1. It encodes isoform IIc which is shorter and has distinct N- and C-termini, compared to isoform IIa.
    Source sequence(s)
    AK013810, AK029181, AV342495, BY772774, CX207371
    UniProtKB/TrEMBL
    Q8CE19
    Related
    ENSMUST00000204617.3
    Conserved Domains (2) summary
    pfam02078
    Location:1 → 47
    Synapsin; Synapsin, N-terminal domain
    pfam02750
    Location:49 → 251
    Synapsin_C; Synapsin, ATP binding domain

  3. NM_013681.3 → NP_038709.1  synapsin-2 isoform IIb

    See identical proteins and their annotated locations for NP_038709.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (IIb) lacks two exons and its 3' terminal exon extends past a splice site that is used in variant IIa. This results in a novel 3' coding region and 3' UTR, compared to variant IIa. It encodes isoform IIb which is shorter and has a distinct C-terminus, compared to isoform IIa.
    Source sequence(s)
    AC147047, AK013810, AK029181, AV342495, BC066004, BM114311, BM951908, BY705489, CX207371
    Consensus CDS
    CCDS51875.1
    UniProtKB/Swiss-Prot
    Q64332
    UniProtKB/TrEMBL
    Q8CE19
    Related
    ENSMUSP00000133121.2, ENSMUST00000169345.4
    Conserved Domains (3) summary
    pfam02078
    Location:116 → 213
    Synapsin; Synapsin, N-terminal domain
    pfam02750
    Location:215 → 417
    Synapsin_C; Synapsin, ATP binding domain
    pfam10581
    Location:2 → 30
    Synapsin_N; Synapsin N-terminal

RefSeqs of Annotated Genomes: GCF_000001635.27-RS_2024_02

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

Reference GRCm39 C57BL/6J

Genomic

  1. NC_000072.7 Reference GRCm39 C57BL/6J

    Range
    115111863..115259587
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)
Nucleotide Protein Strain
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q64332.2 GenPept UniProtKB/Swiss-Prot:Q64332

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