>6vlr_D mol:protein length:132 PGT122 Fab Heavy ChainQVHLQESGPGLVKPSETLSLTCNVSGTLVRDNYWSWIRQPLGKQPEWIGYVHDSGDTNYNPSLKSRVHLSLDKSKNLVSLRLTGVTAADSAIYYCATTKHGRRIYGVVAFKEWFTYFYMDVWGKGTSVTVSS