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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Biochim Biophys Acta Mol Basis Dis. 2018 Dec 26;1866(2):165359. doi: 10.1016/j.bbadis.2018.12.010

Table 1.

Glucose transporters in the human placenta.

Isoform Primary substrate Primary Km (mM) Other substrates
GLUT1 Glucose 3 Galactose, mannose, glucosamine, DHA*
GLUT3 Glucose 1.5 Galactose, fructose mannose, xylose, DHA
GLUT4 Glucose 5 Glucosamine, DHA
GLUT8 Glucose 2 Fructose, galactose
GLUT9a Urate 0.9 Glucose, fructose
GLUT9b Urate 0.9 Glucose, fructose
GLUT10 Glucose 0.3 Galactose
GLUT12 Glucose ND Galactose, fructose

Substrate and Km data from [4,7,59,122].

*

DHA, dehydroascorbic acid; ND, Not Determined