>6y21_A mol:protein length:514 Cystathionine beta-synthaseMNGKFADGPYSGILDSVLDAIGNTPMVRMKRLAKVYGLECDLLAKCEFMSAGGSVKDRIGKAMVEKAEREGRLKAGDTLIEPTSGNTGIGLALAAAVRGYRMIVTMPAKMSAEKSNIMKCLGAEIVRTPTEAAWNDENSHMGVAAKLQRELENAHILDQYNNTANPMVHYDVTAEEIITQCDGDIDMVVIGAGTGGTITGIGRKIKERCPKCKVVGVDPKGSILAVPDSLNDEKRLQSYEVEGIGYDFVPGVLDRKVVDEWVKVGDAESFTTARAIIRNEGLFVGGSSGANVWGALQAARQLKKGQKCVVLLPDSSRNYMSKFISDEWMAEHGFAPEDGAKVKEREKQFGGARIRDLLSETGATSDVPFVTARLSVEDVIKMMHETKVKEVIVTEDSEADGKTKLVGVLSEDHIAHSLQSGRCAMQSPVKDIAFKKLAKALPSAYLRDVAKALDFSPYVCVMDEKPSTKKQAGMGEHERAKISLRKAGNSRECPHFLGVITRIDLLHWLATKQK