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Unless otherwise stated all data on this page refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).
Along with the SLC39 family, SLC30 transporters regulate the movement of zinc ions around the cell. In particular, these transporters remove zinc ions from the cytosol, allowing accumulation into intracellular compartments or efflux through the plasma membrane. ZnT1 is thought to be placed on the plasma membrane extruding zinc, while ZnT3 is associated with synaptic vesicles and ZnT4 and ZnT5 are linked with secretory granules. Membrane topology predictions suggest a multimeric assembly, potentially heteromultimeric , with subunits having six TM domains, and both termini being cytoplasmic. Dityrosine covalent linking has been suggested as a mechanism for dimerisation, particularly for ZnT3 . The mechanism for zinc transport is unknown.
* Key recommended reading is highlighted with an asterisk
* Bouron A, Oberwinkler J. (2013) Contribution of calcium-conducting channels to the transport of zinc ions. Pflugers Arch., [Epub ahead of print]. [PMID:23719866]
* Huang L, Tepaamorndech S. (2013) The SLC30 family of zinc transporters - a review of current understanding of their biological and pathophysiological roles. Mol. Aspects Med., 34 (2-3): 548-60. [PMID:23506888]
* Kambe T, Hashimoto A, Fujimoto S. (2014) Current understanding of ZIP and ZnT zinc transporters in human health and diseases. Cell. Mol. Life Sci., 71 (17): 3281-95. [PMID:24710731]
* Kambe T, Tsuji T, Hashimoto A, Itsumura N. (2015) The Physiological, Biochemical, and Molecular Roles of Zinc Transporters in Zinc Homeostasis and Metabolism. Physiol. Rev., 95 (3): 749-784. [PMID:26084690]
* Kawasaki E. (2012) ZnT8 and type 1 diabetes. Endocr. J., 59 (7): 531-7. [PMID:22447136]
* Marger L, Schubert CR, Bertrand D. (2014) Zinc: an underappreciated modulatory factor of brain function. Biochem. Pharmacol., 91 (4): 426-35. [PMID:25130547]
* Palmiter RD, Huang L. (2004) Efflux and compartmentalization of zinc by members of the SLC30 family of solute carriers. Pflugers Arch., 447 (5): 744-51. [PMID:12748859]
* Rungby J. (2010) Zinc, zinc transporters and diabetes. Diabetologia, 53 (8): 1549-51. [PMID:20490449]
* Wang X, Zhou B. (2010) Dietary zinc absorption: A play of Zips and ZnTs in the gut. IUBMB Life, 62 (3): 176-82. [PMID:20120011]
1. Salazar G, Falcon-Perez JM, Harrison R, Faundez V. (2009) SLC30A3 (ZnT3) oligomerization by dityrosine bonds regulates its subcellular localization and metal transport capacity. PLoS ONE, 4 (6): e5896. [PMID:19521526]
2. Suzuki T, Ishihara K, Migaki H, Ishihara K, Nagao M, Yamaguchi-Iwai Y, Kambe T. (2005) Two different zinc transport complexes of cation diffusion facilitator proteins localized in the secretory pathway operate to activate alkaline phosphatases in vertebrate cells. J. Biol. Chem., 280 (35): 30956-62. [PMID:15994300]
Database page citation:
SLC30 zinc transporter family. Accessed on 27/05/2016. IUPHAR/BPS Guide to PHARMACOLOGY, http://www.guidetopharmacology.org/GRAC/FamilyDisplayForward?familyId=217.
Concise Guide to PHARMACOLOGY citation:
Alexander SPH, Kelly E, Marrion N, Peters JA, Benson HE, Faccenda E, Pawson AJ, Sharman JL, Southan C, Davies JA and CGTP Collaborators (2015) The Concise Guide to PHARMACOLOGY 2015/16: Transporters. Br J Pharmacol. 172: 6110-6202.