>4n21_A mol:protein length:130 GP2 EctodomainMHHHHHHENLYFQGNMKQIEDKIEEILSKIYHIENEIARIKKLIGAIASKIIKTANYTTNALFLLNKEESEIRDHVVEHELALNYLLAHQGGLCNVVKGPMCSSDIDDFSKNVSDMIDKVHEEMKKFYHE