Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/5BOY 5BOY: X-RAY Co-structure of MMP-13 with ethyl 5-(1-methyl-1H-imidazol-5-yl)-1H-indole-2-Carboxylate Collagenase 3CALCIUM IONZINC IONethyl 5-(1-methyl-1H-imidazol-5-yl)-1H-indole-2-carboxylate