Chains and heterogens:
PDB Chain Sequences:
>1vybA (A:) mtgsnshitiltlninglnsaikrhrlaswiksqdpsvcciqethltcrdthrlkikgwr kiyqangkqkkagvailvsdktdfkptkikrdkeghyimvkgsiqqeeltilniyapntg aprfikqvlsdlqrdldshtlimgdfntplstldrstrqkvnkdtqelnsalhqadlidi yrtlhpksteytffsaphhtyskidhivgskallskckrteiitnylsdhsaiklelr
>1vybA (A:) gsnshitiltlninglnsaikrhrlaswiksqdpsvcciqethltcrdthrlkikgwrki yqangkqkkagvailvsdktdfkptkikrdkeghyimvkgsiqqeeltilniyapntgap rfikqvlsdlqrdldshtlimgdfntplstldrstrqkvnkdtqelnsalhqadlidiyr tlhpksteytffsaphhtyskidhivgskallskckrteiitnylsdhsaiklelr
>1vybB (B:) mtgsnshitiltlninglnsaikrhrlaswiksqdpsvcciqethltcrdthrlkikgwr kiyqangkqkkagvailvsdktdfkptkikrdkeghyimvkgsiqqeeltilniyapntg aprfikqvlsdlqrdldshtlimgdfntplstldrstrqkvnkdtqelnsalhqadlidi yrtlhpksteytffsaphhtyskidhivgskallskckrteiitnylsdhsaiklelr
>1vybB (B:) shitiltlninglnsaikrhrlaswiksqdpsvcciqethltcrdthrlkikgwrkiyqa ngkqkkagvailvsdktdfkptkikrdkeghyimvkgsiqqeeltilniyapntgaprfi kqvlsdlqrdldshtlimgdfntplstldrstrqkvnkdtqelnsalhqadlidiyrtlh pksteytffsaphhtyskidhivgskallskckrteiitnylsdhsaiklelr