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