C6K8Q0 · C6K8Q0_PHOPH

Function

function

Neuronal protein that plays several roles in synaptic activity such as regulation of synaptic vesicle trafficking and subsequent neurotransmitter release. Participates as a monomer in synaptic vesicle exocytosis by enhancing vesicle priming, fusion and dilation of exocytotic fusion pores. Mechanistically, acts by increasing local Ca2+ release from microdomains which is essential for the enhancement of ATP-induced exocytosis. Acts also as a molecular chaperone in its multimeric membrane-bound state, assisting in the folding of synaptic fusion components called SNAREs (Soluble NSF Attachment Protein REceptors) at presynaptic plasma membrane in conjunction with cysteine string protein-alpha/DNAJC5. This chaperone activity is important to sustain normal SNARE-complex assembly during aging. Also plays a role in the regulation of the dopamine neurotransmission by associating with the dopamine transporter (DAT1) and thereby modulating its activity.

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentaxon terminus
Cellular Componentcytoplasm
Cellular Componentextracellular region
Cellular Componentmembrane
Cellular Componentneuronal cell body
Cellular Componentnucleus
Molecular Functioncuprous ion binding
Biological Processchemical synaptic transmission
Biological Processregulation of dopamine secretion
Biological Processsynapse organization
Biological Processsynaptic vesicle endocytosis

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Alpha-synuclein

Gene names

    • Name
      SNCA

Organism names

  • Taxonomic identifier
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Laurasiatheria > Artiodactyla > Whippomorpha > Cetacea > Odontoceti > Phocoenidae > Phocoena

Accessions

  • Primary accession
    C6K8Q0

Subcellular Location

Cell projection, axon
Cytoplasm
Membrane
Nucleus
Secreted
Synapse

Keywords

PTM/Processing

Keywords

Interaction

Subunit

Soluble monomer. Homotetramer. A dynamic intracellular population of tetramers and monomers coexists normally and the tetramer plays an essential role in maintaining homeostasis. Interacts with UCHL1. Interacts with phospholipase D and histones. Interacts (via N-terminus) with synphilin-1/SNCAIP; this interaction promotes formation of SNCA inclusions in the cytoplasm. Interacts with CALM1. Interacts with STXBP1; this interaction controls SNCA self-replicating aggregation. Interacts with SNARE components VAMP2 and SNAP25; these interactions allows SNARE complex assembly and integrity. Interacts with RPH3A and RAB3A. Interacts with SERF1A; this interaction promotes the aggregation of SNCA. Interacts with SEPTIN4.

Family & Domains

Features

Showing features for region.

TypeIDPosition(s)Description
Region89-124Disordered

Sequence similarities

Belongs to the synuclein family.

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    124
  • Mass (Da)
    12,565
  • Last updated
    2009-09-01 v1
  • Checksum
    8878C0247E66F9BC
MKGLSKAKEGVVAAAEKTKQGVAEAAEKTKEGVLYVGSKTKEGVVHGVTTVAEKTKEQVTNVGEAVVTGVTAVAQKTVEGAGSIAAATGFGKKDQLGKSEGASQEGILEDTPVDPDSEAYEMPS

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue124

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
GQ169715
EMBL· GenBank· DDBJ
ACS68567.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

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