>9p1x_U mol:protein length:559 Nitrogenase protein alpha chainMWSHPQFEKGGGSGGGSGGGSWSHPQFEKSGMGAEIEDKQLIVDNILKVLPEKAARDRRKHIVVRDCAAEQHIEADDKVIPGILTNRGCAFAGTKGVVFGPIKDMVHLVHGPIGCAYFTWGTRRNLAKAEEGEDNYMNYSVCTDMKETDIVFGGEKKLKKAIDEVVKIFNPGAITICATCPVGLIGDDIESVAREAEEEHGIKVIPARCEGYRGVSQSAGHHIASNSLMEHLIGTEDIKDPTPFDINIFGEYNIGGDLWEIKPILEKIGYRIISSLTGDGSFHKISQAHQAKLSILLCHRSINYTNRMMEEKYGVPWLKVNYIGTKGTEKSLRKMAEFFDDPELTRKTEEVIAEEKAKYADEIERYREKLQGKTAFIYAGGSRSHHYINLFEELGMKVVVAGYQFAHRDDYEGRQIIPHIKEKALGSILEDVHYEREENFKPSINAERITELKEKIGLMDYEGLFPEMKDGTIVVDDLNHHETEFLVKALKPDIFCSGIKDKYWAQKIGVPSRQIHSYDYSGRYTGFSGVLNFARDIDMAIHSPTWRFINPPWKGEGAE