>3nxn_A mol:protein length:203 protease covalent dimerPQITLWKRPLVTIRIGGQLKEALLDTGADDTVIEELNLPGCWKPKLIGGIGGFIKVRQYDQIPVEIAGHKAIGTVLVGPTPVNIIGRNLLTQIGATLNFCGGGGPQITLWKRPLVTIRIGGQLKEALLDTGADDTVIEELNLPGCWKPKLIGGXGGFIKVRQYDQIPVEIAGHKAIGTVLVGPTPVNIIGRNLLTQIGATLNF