Chains and heterogens:
PDB Chain Sequences:
>4ykiA (A:) gsknligrhlrlgsveeqpfmffategcegndcwsgmvndmvvklsedlgftyeyiqpdd rkfgalnkttnewngmirdllddktdmiaidlstnsarksaidysfpfmdagikavvkge gttlnqvlelldqdkykwgvigsrhpetllkthrdsrysrlvdegvelkdlnhaietlrg glfvfidegpvlahnlisdcdvfsvgeefqsfeyafglpkdspykslidshllkfreegf idilwekwssgnsvcs
>4ykiA (A:) ligrhlrlgsveeqpfmffategcegndcwsgmvndmvvklsedlgftyeyiqpddrkfg alnkttnewngmirdllddktdmiaidlstnsarksaidysfpfmdagikavvkgegttl nqvlelldqdkykwgvigsrhpetllkthrdsrysrlvdegvelkdlnhaietlrgglfv fidegpvlahnlisdcdvfsvgeefqsfeyafglpkdspykslidshllkfreegfidil wekwssg
>4ykiB (B:) gsknligrhlrlgsveeqpfmffategcegndcwsgmvndmvvklsedlgftyeyiqpdd rkfgalnkttnewngmirdllddktdmiaidlstnsarksaidysfpfmdagikavvkge gttlnqvlelldqdkykwgvigsrhpetllkthrdsrysrlvdegvelkdlnhaietlrg glfvfidegpvlahnlisdcdvfsvgeefqsfeyafglpkdspykslidshllkfreegf idilwekwssgnsvcs
>4ykiB (B:) gsknligrhlrlgsveeqpfmffategcegndcwsgmvndmvvklsedlgftyeyiqpdd rkfgalnkttnewngmirdllddktdmiaidlstnsarksaidysfpfmdagikavvkge gttlnqvlelldqdkykwgvigsrhpetllkthrdsrysrlvdegvelkdlnhaietlrg glfvfidegpvlahnlisdcdvfsvgeefqsfeyafglpkdspykslidshllkfreegf idilwekwssgnsvc