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Overview

Uniprot IDH0VPZ2
Protein NameAlpha-synuclein
Gene NameSNCA
OrganismCavia porcellus

Kla Sites from experimental identification

Position Flanking peptide
12 MKGLSKAKEGVVAAA
34 AEAAGKTKEGVLYVG
45 LYVGSKTKEGVVHGV

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 Ca(2+) release from microdomains which is essential for the enhancement of ATP-induced exocytosis. Also acts 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

Protein Sequence

10 MDVFMKGLSK 20 AKEGVVAAAE 30 KTKQGVAEAA 40 GKTKEGVLYV 50 GSKTKEGVVH 60 GVTTVAEKTK 70 EQVTNVGGAV 80 VTGVTAVAHK 90 TVEGAGNIAA 100 ATGFVRKDQL 110 GKNEEGSSQE 120 GILEDMPVDP 130 DNEAYEMPSE 140 EGYQDYEPEA

Gene Ontology

Classification GO ID Description
Biological Process GO:0048488 synaptic vesicle endocytosis
Cellular Component GO:0015629 actin cytoskeleton
Cellular Component GO:0043679 axon terminus
Cellular Component GO:0005938 cell cortex
Cellular Component GO:0005829 cytosol
Cellular Component GO:0005615 extracellular space
Cellular Component GO:0030426 growth cone
Cellular Component GO:0097413 Lewy body
Cellular Component GO:0043025 neuronal cell body
Cellular Component GO:0005634 nucleus
Cellular Component GO:0048471 perinuclear region of cytoplasm
Cellular Component GO:0005886 plasma membrane
Cellular Component GO:0031092 platelet alpha granule membrane
Cellular Component GO:0032991 protein-containing complex
Cellular Component GO:0099512 supramolecular fiber
Cellular Component GO:0030672 synaptic vesicle membrane
Molecular Function GO:0003779 actin binding
Molecular Function GO:0043014 alpha-tubulin binding
Molecular Function GO:0050544 arachidonate binding
Molecular Function GO:0005509 calcium ion binding
Molecular Function GO:1903136 cuprous ion binding
Molecular Function GO:0004869 cysteine-type endopeptidase inhibitor activity
Molecular Function GO:0070840 dynein complex binding
Molecular Function GO:0008047 enzyme activator activity
Molecular Function GO:0019899 enzyme binding
Molecular Function GO:0008198 ferrous iron binding
Molecular Function GO:0042393 histone binding
Molecular Function GO:0030544 Hsp70 protein binding
Molecular Function GO:0042802 identical protein binding
Molecular Function GO:0019894 kinesin binding
Molecular Function GO:0000287 magnesium ion binding
Molecular Function GO:0016491 oxidoreductase activity
Molecular Function GO:0005543 phospholipid binding
Molecular Function GO:0051219 phosphoprotein binding
Molecular Function GO:0140311 protein sequestering activity
Molecular Function GO:0000149 SNARE binding
Molecular Function GO:0048156 tau protein binding
Molecular Function GO:0141108 transporter regulator activity
Molecular Function GO:0008270 zinc ion binding
Biological Process GO:0071280 cellular response to copper ion
Biological Process GO:0034599 cellular response to oxidative stress
Biological Process GO:0043066 negative regulation of apoptotic process
Biological Process GO:1904715 negative regulation of chaperone-mediated autophagy
Biological Process GO:0051585 negative regulation of dopamine uptake involved in synaptic transmission
Biological Process GO:0045920 negative regulation of exocytosis
Biological Process GO:0031115 negative regulation of microtubule polymerization
Biological Process GO:0051622 negative regulation of norepinephrine uptake
Biological Process GO:0010642 negative regulation of platelet-derived growth factor receptor signaling pathway
Biological Process GO:0051612 negative regulation of serotonin uptake
Biological Process GO:0070495 negative regulation of thrombin-activated receptor signaling pathway
Biological Process GO:0045807 positive regulation of endocytosis
Biological Process GO:0045921 positive regulation of exocytosis
Biological Process GO:1903285 positive regulation of hydrogen peroxide catabolic process
Biological Process GO:0050729 positive regulation of inflammatory response
Biological Process GO:0060732 positive regulation of inositol phosphate biosynthetic process
Biological Process GO:1904377 positive regulation of protein localization to cell periphery
Biological Process GO:0001921 positive regulation of receptor recycling
Biological Process GO:0051281 positive regulation of release of sequestered calcium ion into cytosol
Biological Process GO:0035543 positive regulation of SNARE complex assembly
Biological Process GO:0031648 protein destabilization
Biological Process GO:0051262 protein tetramerization
Biological Process GO:0031623 receptor internalization
Biological Process GO:0014059 regulation of dopamine secretion
Biological Process GO:1905606 regulation of presynapse assembly
Biological Process GO:0070555 response to interleukin-1
Biological Process GO:0010040 response to iron(II) ion
Biological Process GO:0032496 response to lipopolysaccharide
Biological Process GO:0032026 response to magnesium ion
Biological Process GO:0034341 response to type II interferon
Biological Process GO:0035493 SNARE complex assembly
Biological Process GO:0050808 synapse organization
Biological Process GO:0016082 synaptic vesicle priming

Reference

[1] Feng J, Chen X, Li R, Xie Y, Zhang X et al.. Lactylome analysis reveals potential target modified proteins in the retina of form-deprivation myopia.. iScience 27(9):110606. 2024 Sep 20. PMID: 39246443.