lipid A-core heptosyltransferase activity
Catalysis of the reaction: galactosyl-glucosyl3-heptosyl3-KDO2-lipid A-bisphosphate + ADP-L-glycero-beta-D-manno-heptose = lipid A-core + ADP + H+.
GO:0008920
lipopolysaccharide heptosyltransferase activity
is_a