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Class I transporters C

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).


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Class I transporters are able to transport D-glucose, but not D-fructose, in the direction of the concentration gradient and may be inhibited non-selectively by phloretin and cytochalasin B. GLUT1 is the major glucose transporter in brain, placenta and erythrocytes, GLUT2 is found in the pancreas, liver and kidneys, GLUT3 is neuronal and placental, while GLUT4 is the insulin-responsive transporter found in skeletal muscle, heart and adipose tissue. GLUT14 appears to result from gene duplication of GLUT3 and is expressed in the testes [3].


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GLUT1 (Glucose transporter 1 / SLC2A1) C Show summary » More detailed page go icon to follow link

GLUT2 (Glucose transporter 2 / SLC2A2) C Show summary »

GLUT3 (Glucose transporter 3 / SLC2A3) C Show summary »

GLUT4 (Glucose transporter 4 / SLC2A4) C Show summary »

Target Id 878
Nomenclature Glucose transporter 4
Systematic nomenclature SLC2A4
Common abbreviation GLUT4
Previous and unofficial names Insulin-responsive glucose transporter | Glucose transporter 4 insuline-responsive | solute carrier family 2 member 4 | solute carrier family 2 (facilitated glucose transporter) member 4 | GLUT4 | solute carrier family 2 (facilitated glucose transporter), member 4 | solute carrier family 2 (facilitated glucose transporter)
Genes SLC2A4 (Hs), Slc2a4 (Mm), Slc2a4 (Rn)
Ensembl ID ENSG00000181856 (Hs), ENSMUSG00000018566 (Mm), ENSRNOG00000017226 (Rn)
UniProtKB AC P14672 (Hs), P14142 (Mm), P19357 (Rn)
Bioparadigms SLC Tables SLC2A4 (Hs)
D-glucosamine (D-glucosamine ≥ D-glucose) [2]
D-glucose (D-glucosamine ≥ D-glucose) [2]
Labelled ligands

GLUT14 (Glucose transporter 14 / SLC2A14) C Show summary »


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How to cite this family page

Database page citation:

Class I transporters. Accessed on 10/12/2023. IUPHAR/BPS Guide to PHARMACOLOGY,

Concise Guide to PHARMACOLOGY citation:

Alexander SP, Kelly E, Mathie A, Peters JA, Veale EL et al. (2021) THE CONCISE GUIDE TO PHARMACOLOGY 2021/22: Transporters. Br J Pharmacol. 178 Suppl 1:S412-S513.