Comparison of the active site of SPy1599 with those of β-glucosidase from T. maritima (TmGH1) and 6-phospho-β-glucosidase from L. lactis. Stereoview of the active-site residues of SPy1599 (cyan) superpositioned with TmGH1 (PDB entry 1oin
; light blue; Zechel et al., 2003) and 6-phospho-β-glucosidase from L. lactis (PDB entry 4pbg
; green with ligand in dark red; Wiesmann et al., 1997). This figure was prepared using CCP4mg (McNicholas et al., 2011).