Fig 4. The exhibition of protease 1147 binding site.

(A) Predicted 3D structure of protease 1147. (B) Amino acids belonging to the catalytic tetrad (Glu⁷⁷ –Cys¹⁰³ –His¹⁰⁴ –Gly¹⁰⁵), and (C) nucleophilic elbow, enzyme cofactor, and active site flap in protease 1147 active site.