2.5.1.2 | inactive C143S mutant with bound thiamine at 2.2 A resolution. Each monomer contains one thiamine molecule in a V-shaped cleft between the two domains. Tyrosine residues, Tyr46, Tyr48, Tyr80, Tyr252, Tyr269, and Tyr300, form an outer collar of the cleft with most of the active site residues located at the bottom of the cleft. The catalytic cysteine residue Cys143 is located on beta6 |
737686 |