pdb Bchain Achain Dchain Gchain TCRtype model antigen_chain antigen_type antigen_name antigen_het_name mhc_type mhc_chain1 mhc_chain2 docking_angle beta_subgroup alpha_subgroup gamma_subgroup delta_subgroup short_header date compound beta_organism alpha_organism gamma_organism delta_organism antigen_organism mhc_chain1_organism mhc_chain2_organism authors resolution method r_free r_factor affinity affinity_method affinity_temperature affinity_pmid engineered 6c61 B A NA NA abTCR 0 NA NA NA NA NA NA NA nan TRBV26 TRAV6 NA NA IMMUNE SYSTEM 01/17/18 MHC-independent T-cell receptor B12A mus musculus mus musculus Lu, J., Sun, P. 2.43 X-RAY DIFFRACTION 0.249 0.203 True