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