Fig. 20. Close-up rendering of the crystal structure of the Q7·RSL* complex, showing Q7 bound to the LysMe₂ residue.⁹¹ Only one of the two conformations of the LysMe₂ side chain is shown, and it is rendered as space-filling with green carbons. Q7 is rendered as sticks with grey carbons. Oxygens are red. Nitrogens are blue. PDB ID 6F7W.