1ppc
Geometry of binding of the benzamidine-and arginine-based inhibitors n-alpha-(2-naphthyl-sulphonyl-glycyl)-dl-p-amidinophenylalanyl-piperidine (napap) and (2r,4r)-4-methyl-1-[n-alpha-(3-methyl-1,2,3,4-tetrahydro-8-quinolinesulphonyl)-l-arginyl]-2-piperidine carboxylic acid (mqpa) to human alpha-thrombin: x-ray crystallographic determination of the napap-trypsin complex and modeling of napap-thrombin and mqpa-thrombin