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Depiction of the cellular and subcellular localizations of zinc transporters in pancreatic β cells during insulin production and secretion. ER, endoplasmic reticulum; GLUT2, glucose transporter 2; GPR39, G protein-coupled receptor 39; INS, insulin; KATP, ATP-sensitive potassium channel; VGCC, voltage-gated calcium channels; ZIP, Zrt-Irt-Like proteins; ZNT, zinc transporters.
