Chains and heterogens:
PDB Chain Sequences:
>3u3kA (A:) mgsshhhhhhssglvprgshmeliqdtsrppleyvkgvplikyfaealgplqsfqarpdd llistypksgttwvsqildmiyqggdlekchrapifmrvpflefkapgipsgmetlkdtp aprllkthlplallpqtlldqkvkvvyvarnakdvavsyyhfyhmakvhpepgtwdsfle kfmvgevsygswyqhvqewwelsrthpvlylfyedmkenpkreiqkilefvghslpeetv dfmvqhtsfkemkknpmtnyttvpqefmdhsispfmrkgmagdwkttftvaqnerfdady aekmagcslsfrsel
>3u3kA (A:) tsrppleyvkgvplikyfaealgplqsfqarpddllistypksgttwvsqildmiyqggd lekchrapifmrvpflefkapgipsgmetlkdtpaprllkthlplallpqtlldqkvkvv yvarnakdvavsyyhfyhmakvhpepgtwdsflekfmvgevsygswyqhvqewwelsrth pvlylfyedmkenpkreiqkilefvghslpeetvdfmvqhtsfkemkknpmtnyttvpqe fmdhsispfmrkgmagdwkttftvaqnerfdadyaekmagcslsfrsel
>3u3kB (B:) mgsshhhhhhssglvprgshmeliqdtsrppleyvkgvplikyfaealgplqsfqarpdd llistypksgttwvsqildmiyqggdlekchrapifmrvpflefkapgipsgmetlkdtp aprllkthlplallpqtlldqkvkvvyvarnakdvavsyyhfyhmakvhpepgtwdsfle kfmvgevsygswyqhvqewwelsrthpvlylfyedmkenpkreiqkilefvghslpeetv dfmvqhtsfkemkknpmtnyttvpqefmdhsispfmrkgmagdwkttftvaqnerfdady aekmagcslsfrsel
>3u3kB (B:) srppleyvkgvplikyfaealgplqsfqarpddllistypksgttwvsqildmiyqggdl ekchrapifmrvpflefkapgipsgmetlkdtpaprllkthlplallpqtlldqkvkvvy varnakdvavsyyhfyhmakvhpepgtwdsflekfmvgevsygswyqhvqewwelsrthp vlylfyedmkenpkreiqkilefvghslpeetvdfmvqhtsfkemkknpmtnyttvpqef mdhsispfmrkgmagdwkttftvaqnerfdadyaekmagcslsfrsel