(2R)-Glycerol-O-β-D-galactopyranoside is a substrate for β-galactosidase, the lactose repressor, the galactose-binding protein, and the β-methylgalactoside transport system. It also serves as a substrate for the third lac operon encoded enzyme, thiogalactoside transacetylase.
(2R)-Glycerol-O-β-D-galactopyranoside (3-O-β-D-Galactopyranosyl-sn-glycerol) is a good substrate for all three components of the lac operon, i.e. β-galactosidase, the lactose transporter and thiogalactoside transacetylase[1].
ChEBI: 3-O-beta-D-galactopyranosyl-sn-glycerol is a D-galactosylglycerol. It has a role as a human metabolite.
[1] [10] Synthesis of (2R)-glycerol-o-β-d-galactopyranoside by β-galactosidase, Methods in Enzymology, Academic Press, Volume 89, 1982, Pages 59-64, ISSN 0076-6879, ISBN 9780121819897.