title: [X-ray studies on a microbial protein proteinase inhibitor SSI (Streptomyces subtilisin inhibitor)].
mesh_terms: D000818:Animals; D001483:Base Sequence; D002417:Cattle; D004285:Dogs; D008956:Models, Chemical; D011480:Protease Inhibitors / Q000032:analysis*; D013302:Streptomyces / Q000032:analysis*; D013381:Subtilisins / Q000037:antagonists & inhibitors*; D014359:Trypsin Inhibitor, Kazal Pancreatic / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D011480:Protease Inhibitors; D014359:Trypsin Inhibitor, Kazal Pancreatic; D013381:Subtilisins