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中国细胞生物学学报 Chinese Journal of Cell Biology 2010, 32(2): 176−188 http://www.cjcb.org
Fig.1 Zinc transporter protein SLC39A/ZIP and SLC30A/ZnT families(A) The representative cell shows generalized representations of the ZnT/SLC30A and ZIP/SLC39A transporter protein members.Dendrograms showing the sequence similarity among human ZIP members (B) and ZnT members (C).
178 ·特约综述 ·
Table1 Properties of the human and mouse SLC39A and SLC30A family zinc transportersProtein Sub- Chromosome Gene expression Related disease Phenotype of Subcellular Molecular
name family Location KO mice localization function
Zip1 II H: 1q21 Widespread Reduced expression No phenotype Plasma membrane Zinc uptake
M: 3 F1 in prostate cancer
Zip2 II H: 14q11.2 Prostate, uterus, cervica Reduced expression No phenotype Plasma membrane Zinc uptake
M: 14 C2 lepithelium, optic nerve, in prostate cancer
monocytes
Zip3 II H: 19p13.3 Widespread Reduced expression No phenotype Plasma membrane Zinc uptake
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187于 昱等: 锌转运蛋白家族 SLC39A/ZIP 和 SLC30A/ZnT 的研究进展
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188 ·特约综述 ·
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Zinc Transporters: Critical Regulators of Zinc Homeostasis
Yu Yu, Fu-Di Wang*(Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences,
Shanghai 200031, China)
Abstract Zinc, as a catalytic and structural cofactor for many enzymes and proteins, plays important rolesin development, brain function, bone health, fertility and immunity. Beneficial therapeutic effects of zinc supplemen-tation has been observed in children's diarrhea, chronic hepatitis C, acute lower respiratory tract infection, commoncold, and many others. However, excessive zinc is potentially toxic. Indeed zinc deficiency or excessive has beenlinked to multiple diseases including cancer, diabetes and stroke. Therefore, maintenance of zinc homeostasis iscritical for every aspect of cell physiology. In last decade, much progress has been made to uncover how organismsmaintain zinc homeostasis, especially the discovery of two zinc transporter families SLC39A/ZIP and SLC30A/ZnT.It is still poorly understood how to maintain zinc homeostasis given the complexity of the process. In this review,we will focus on functions and molecular mechanisms of these two critical zinc transporter families in regulation ofcellular zinc homeostasis.
Key words zinc; zinc transporters; SLC39A/ZIP; SLC30A/ZnT; homeostasis
This work was supported by the Chinese Academy of Sciences Hundred Project (No.KSCX2-YW-R-141), the National Natural ScienceFoundation of China (No.30901193, No.10979071, No.30970665) and National Key Basic Research Program (No.2009CB941400)