>3tgx_K mol:protein length:219 Interleukin-21 receptorCPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSEELKEHHHHHH