Vesicle-associated membrane protein 4 is a protein that in humans is encoded by the VAMP4 gene. [5] [6]
Synaptobrevins/VAMPs, syntaxins, and the 25-kD synaptosomal-associated protein SNAP25 are the main components of a protein complex involved in the docking and/or fusion of synaptic vesicles with the presynaptic membrane. The protein encoded by this gene is a member of the vesicle-associated membrane protein (VAMP)/synaptobrevin family. This protein may play a role in trans-Golgi network-to-endosome transport. [6]
VAMP4 has been shown to interact with AP1M1, [7] STX6 [8] and STX16. [8]
SNARE proteins – "SNAPREceptor" – are a large protein family consisting of at least 24 members in yeasts, more than 60 members in mammalian cells, and some numbers in plants. The primary role of SNARE proteins is to mediate vesicle fusion – the fusion of vesicles with the target membrane; this notably mediates exocytosis, but can also mediate the fusion of vesicles with membrane-bound compartments. The best studied SNAREs are those that mediate the neurotransmitter release of synaptic vesicles in neurons. These neuronal SNAREs are the targets of the neurotoxins responsible for botulism and tetanus produced by certain bacteria.
Vesicle associated membrane proteins (VAMP) are a family of SNARE proteins with similar structure, and are mostly involved in vesicle fusion.
Synaptobrevins are small integral membrane proteins of secretory vesicles with molecular weight of 18 kilodalton (kDa) that are part of the vesicle-associated membrane protein (VAMP) family.
Synaptosomal-associated protein 23 is a protein that in humans is encoded by the SNAP23 gene. Two alternative transcript variants encoding different protein isoforms have been described for this gene.
AP-1 complex subunit mu-1 is a protein that in humans is encoded by the AP1M1 gene.
Vesicle-associated membrane protein 2 (VAMP2) is a protein that in humans is encoded by the VAMP2 gene.
Synaptobrevin-like protein 1 (SYBL1), also known as vesicle-associated membrane protein 7 (VAMP7), is a protein that in humans is encoded by the VAMP7, or SYBL1, gene.
Syntaxin-7 is a protein that in humans is encoded by the STX7 gene.
Syntaxin-6 is a protein that in humans is encoded by the STX6 gene.
N-ethylmaleimide-sensitive factor Attachment Protein Alpha, also known as SNAP-α, is a SNAP protein that is involved in the intra-cellular trafficking and fusing of vesicles to target membranes in cells.
Vesicle-associated membrane protein 3 is a protein that in humans is encoded by the VAMP3 gene.
Syntaxin-5 is a protein that in humans is encoded by the STX5 gene.
Syntaxin-12 is a protein that in humans is encoded by the STX12 gene.
Vesicle-associated membrane protein 8 is a protein that in humans is encoded by the VAMP8 gene.
Syntaxin-8 is a protein that in humans is encoded by the STX8 gene. Syntaxin 8 directly interacts with HECTd3 and has similar subcellular localization. The protein has been shown to form the SNARE complex with syntaxin 7, vti1b and endobrevin. These function as the machinery for the homotypic fusion of late endosomes.
Golgi SNAP receptor complex member 1 is a protein that in humans is encoded by the GOSR1 gene.
Syntaxin-16 is a protein that in humans is encoded by the STX16 gene.
Golgi SNAP receptor complex member 2 is a protein that in humans is encoded by the GOSR2 gene.
Syntaxin-10 (STX10) is a SNARE protein that is encoded by the STX10 gene. This protein is found in most vertebrates but is noticeably absent from mice. As with other SNARE proteins, STX10 facilitates vesicle fusion and thus is important for intracellular trafficking of proteins and other cellular components. More specifically, STX10 has been implicated in endosome to Golgi trafficking of the mannose 6-phosphate receptor and glucose transporter type 4.
Vesicle transport through interaction with t-SNAREs homolog 1A is a protein that in humans is encoded by the VTI1A gene.