>6usa_E mol:protein length:276 Tryptophan synthase alpha chainMVAVEQSEASRLGPVFDSCRANNRAALIGYLPTGYPDVPASVAAMTALVESGCDIIEVGVPYSDPGMDGPTIARATEAALRGGVRVRDTLAAVEAISIAGGRAVVMTYWNPVLRYGVDAFARDLAAAGGLGLITPDLIPDEAQQWLAASEEHRLDRIFLVAPSSTPERLAATVEASRGFVYAASTMGVTGARDAVSQAAPELVGRVKAVSDIPVGVGLGVRSRAQAAQIAQYADGVIVGSALVTALTEGLPRLRALTGELAAGVRLGMSAHHHHHH