Figure 1
Cα trace of mistletoe lectin I. The A-chain in the upper right region is shown in dark green; the active-site residues Tyr76A, Tyr115A, Glu165A and Arg168A are shown in red in ball-and-stick representation. The B-chain in the lower left part is coloured yellow. Lactose is shown in ball-and-stick representation in purple in galactose-binding sites I and II. Glycosylation sites I in chain A and sites II to IV in chain B are indicated by their oligosaccharide structure visible in the electron density and are shown in ball-and-stick representation. Glycerol bound in the potential third galactose-binding site is shown in blue. |