UNC13B

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Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

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RefSeq (protein)

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Location (UCSC)n/an/a
PubMed searchn/an/a
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Protein unc-13 homolog B is a protein that in humans is encoded by the UNC13B gene.[1][2]

Function

This gene is expressed in the kidney cortical epithelial cells and is upregulated by hyperglycemia. The encoded protein shares a high level of similarity to the rat homolog, and contains 3 C2 domains and a diacylglycerol-binding C1 domain. Hyperglycemia increases the levels of diacylglycerol, which has been shown to induce apoptosis in cells transfected with this gene and thus contribute to the renal cell complications of hyperglycemia. Studies in other species also indicate a role for this protein in the priming step of synaptic vesicle exocytosis.[2]

Interactions

UNC13B has been shown to interact with:

References

  1. Song Y, Ailenberg M, Silverman M (August 1998). "Cloning of a novel gene in the human kidney homologous to rat munc13s: its potential role in diabetic nephropathy". Kidney Int. 53 (6): 1689–95. doi:10.1046/j.1523-1755.1998.00942.x. PMID 9607201.
  2. 2.0 2.1 "Entrez Gene: UNC13B unc-13 homolog B (C. elegans)".
  3. Orita S, Naito A, Sakaguchi G, Maeda M, Igarashi H, Sasaki T, Takai Y (June 1997). "Physical and functional interactions of Doc2 and Munc13 in Ca2+-dependent exocytotic machinery". J. Biol. Chem. 272 (26): 16081–4. doi:10.1074/jbc.272.26.16081. PMID 9195900.
  4. Mochida S, Orita S, Sakaguchi G, Sasaki T, Takai Y (September 1998). "Role of the Doc2 alpha-Munc13-1 interaction in the neurotransmitter release process". Proc. Natl. Acad. Sci. U.S.A. 95 (19): 11418–22. doi:10.1073/pnas.95.19.11418. PMC 21657. PMID 9736751.
  5. Betz A, Thakur P, Junge HJ, Ashery U, Rhee JS, Scheuss V, Rosenmund C, Rettig J, Brose N (April 2001). "Functional interaction of the active zone proteins Munc13-1 and RIM1 in synaptic vesicle priming". Neuron. 30 (1): 183–96. doi:10.1016/s0896-6273(01)00272-0. PMID 11343654.
  6. Ohtsuka T, Takao-Rikitsu E, Inoue E, Inoue M, Takeuchi M, Matsubara K, Deguchi-Tawarada M, Satoh K, Morimoto K, Nakanishi H, Takai Y (August 2002). "Cast: a novel protein of the cytomatrix at the active zone of synapses that forms a ternary complex with RIM1 and munc13-1". J. Cell Biol. 158 (3): 577–90. doi:10.1083/jcb.200202083. PMC 2173811. PMID 12163476.
  7. Sakaguchi G, Orita S, Naito A, Maeda M, Igarashi H, Sasaki T, Takai Y (July 1998). "A novel brain-specific isoform of beta spectrin: isolation and its interaction with Munc13". Biochem. Biophys. Res. Commun. 248 (3): 846–51. doi:10.1006/bbrc.1998.9067. PMID 9704016.
  8. 8.0 8.1 Betz A, Okamoto M, Benseler F, Brose N (January 1997). "Direct interaction of the rat unc-13 homologue Munc13-1 with the N terminus of syntaxin". J. Biol. Chem. 272 (4): 2520–6. doi:10.1074/jbc.272.4.2520. PMID 8999968.

Further reading