>9nsv_B mol:protein length:523 Nitrogenase MoFe-protein beta chainMSQQVDNIKPSYPLFRDQDYKDMLAKKRDNFEEKHPQEKIDEVFQWTTTEEYQELNFQREALTVNPAKACQPLGAVLCSLGFEKTMPYVHGSQGCVAYFRTYFNRHFKEPISCVSDSMTEDAAVFGGQQNMKDGLQNCKAIYKPDMIAVSTTCMAEVIGDDLNAFINNSKKEGHIPDEFPVPFAHTPSFVGSHVTGWDNMFEGIARYFTLNYMEDKEVGSNGKINIVPGFETYLGNFRVIKRMMNEMNVDYTLLSDPEEVLDTPADGQFRMYAGGTTQDEMKDAPNALNTLMLQPWQLTKTTKFVKNTWKHEVPKLNIPMGLDWTDEFLMKVSEISGQPIPESLAKERGRLVDMMTDSHTWLHGKKFALWGDPDFVMGMTKFLLELGCEPIHILCNNANKRWKKAMDAILAESPYGANSEVHIGKDLWHMRSLVFTNKPDFMIGNSYGKFIQRDTLYKGKEFEVPLIRIGFPIFDRHHLHRQTTLGYEGAMQILTTLVNSVLERLDEETRGMQTTDYNYDLVR