Protein: Protein unc-13 homolog A (Munc13-1) (Q4KUS2)
Organism: Mus musculus (Mouse)
Function: Plays a role in vesicle maturation during exocytosis as a target of the diacylglycerol second messenger pathway. Involved in neurotransmitter release by acting in synaptic vesicle priming prior to vesicle fusion and participates in the activity-dependent refilling of readily releasable vesicle pool (RRP). Essential for synaptic vesicle maturation in most excitatory/glutamatergic but not inhibitory/GABA-mediated synapses. Facilitates neuronal dense core vesicles fusion as well as controls the location and efficiency of their synaptic release. Also involved in secretory granule priming in insulin secretion. Plays a role in dendrite formation by melanocytes (By similarity).
Subcellular location: Cytoplasm {ECO:0000250|UniProtKB:Q62768}. Cell membrane {ECO:0000250|UniProtKB:Q62768}; Peripheral membrane protein {ECO:0000250|UniProtKB:Q62768}. Presynaptic cell membrane {ECO:0000250|UniProtKB:Q62768}; Peripheral membrane protein {ECO:0000250|UniProtKB:Q62768}. Presynaptic active zone {ECO:0000305|PubMed:23229896}. Note=Translocated to the plasma membrane in response to phorbol ester binding. {ECO:0000250|UniProtKB:Q62768}.
Interaction partners:
- Regulating synaptic membrane exocytosis protein 1
- Regulating synaptic membrane exocytosis protein 2
- Calmodulin-1
- Protein unc-13 homolog C
- Protein unc-13 homolog B
- Calmodulin 5
- Calmodulin-4
- Calmodulin-like protein 3
- Calmodulin-like protein 4
- Protein bassoon
Sequence:
MSLLCVGVKKAKFDGAQEKFNTYVTLKVQNVKSTTIAVRGSQPSWEQDFMFEINRLDLGLTVEVWNKGLIWDTMVGTVWIPLRTIRQSNEEGPGEWLTLDSQAIMADSEICGTKDPTFHRILLDAHFELPLDIPEEEARYWAKKLEQLNAMRDQDEYSFQDQQDKPLPVPSSQCCNWNYFGWGEQNDDPDSAVDDRDSDYRSETSNSIPPPYYTTSQPNASVHQYSVRPPPLGSRESYSDSMHSYEEFSEPRALSPTGSSRYASSGELSQGSSQLSEDFDPDEHSLQGSELDDERDRDSYHSCHSSVSYHKDSPRWDQDDEDLEDLEDLEDEELPEEEEELEEEGEEELEEEDLEEEEEVPDDLASYTQQEDTTVAEPKEFKRISFPTAAPQKDDKVSAVPTEAPEVAKGIPKAATPEEKAAAERAQEAEPPKSEESFRSREEEEGQEGQDAMSRAKANWLRAFNKVRMQLQEARGEGDMSKSLWFKGGPGGGLIIIDSMPDIRKRKPIPLVSDLAMSLVQSRKAGITSALASSTLNNEELKNHVYKKTLQALIYPISCTTPHNFEVWTATTPTYCYECEGLLWGIARQGMRCTECGVKCHEKCQDLLNADCLQRAAEKSSKHGAEDRTQNIIMVLKDRMKIRERNKPEIFELIQEIFAVTKSAHTQQMKAVKQSVLDGTSKWSAKISITVVCAQGLQAKDKTGSSDPYVTVQVGKTKKRTKTIYGNLNPVWEENFHFECHNSSDRIKVRVWDEDDDIKSRVKQRFKRESDDFLGQTIIEVRTLSGEMDVWYNLDKRTDKSAVSGAIRLHISVEIKGEEKVAPYHVQYTCLHENLFHFVTDVQNNGVVKIPDAKGDDAWKVYYDETAQEIVDEFAMRYGVESIYQAMTHFACLSSKYMCPGVPAVMSTLLANINAYYAHTTASTNVSASDRFAASNFGKERFVKLLDQLHNSLRIDLSMYRNNFPASSPERLQDLKSTVDLLTSITFFRMKVQELQSPPRASQVVKDCVKACLNSTYEYIFNNCHELYGREYQTDPAKKGEVPPEEQGPSIKNLDFWSKLITLIVSIIEEDKNSYTPCLNQFPQELNVGKISAEVMWSLFAQDMKYAMEEHDKHRLCKSADYMNLHFKVKWLYNEYVAELPTFKDRVPEYPAWFEPFVIQWLDENEEVSRDFLHGALERDKKDGFQQTSEHALFSCSVVDVFSQLNQSFEIIKKLECPDPQIVGHYMRRFAKTISNVLLQYADIVSKDFASYCSKEKEKVPCILMNNTQQLRVQLEKMFEAMGGKELDAEASGTLKELQVKLNNVLDELSHVFATSFQPHIEECVRQMGDILSQVKGTGNVPASACSSVAQDADNVLQPIMDLLDSNLTLFAKICEKTVLKRVLKELWKLVMNTMEKTIVLPPLTDQTMIGTLLRKHGKGLEKGRVKLPSHSDGTQMIFNAAKELGQLSKLKDHMVREEAKSLTPKQCAVVELALDTIKQYFHAGGVGLKKTFLEKSPDLQSLRYALSLYTQATDLLIKTFVQTQSAQGSGVEDPVGEVSVHVELFTHPGTGEQKVTVKVVAANDLKWQTSGIFRPFIEVNIVGPQLSDKKRKFATKSKNNSWAPKYNESFQFSLSADAGPECYELQVCVKDYCFAREDRTVGLAVLQLRELAQRGSAACWLPLGRRIHMDDTGLTVLRILSQRSNDEVAKEFVKLKSDTRSAEEGGAAPAP