Figure 5: Comparison of substrate-binding faces.
From: Structure and boosting activity of a starch-degrading lytic polysaccharide monooxygenase
Stereo view (divergent, ‘wall-eyed’) of the putative substrate-binding faces of (a) Ao(AA13) depicting shallow groove leading through copper active site (N-terminal histidine shown in blue, copper ion shown in brown) and (b) a cellulose-active LPMO Ta(AA9) (Protein Data Bank code 3ZUD) with much flatter binding surface.
