Chains and heterogens:
PDB Chain Sequences:
>1s16A (A:) mtqtynadaievltglepvrrrpgmytdttrpnhlgqevidnsvdealaghakrvdvilh adqsleviddgrgmpvdihpeegvpavelilcrlhaggkfsnknyqfsgglhgvgisvvn alskrvevnvrrdgqvyniafengekvqdlqvvgtcgkrntgtsvhfwpdetffdsprfs vsrlthvlkakavlcpgveitfkdeinnteqrwcyqdglndylaeavnglptlpekpfig nfagdteavdwallwlpeggelltesyvnliptmqggthvnglrqglldamrefceyrni lprgvklsaediwdrcayvlsvkmqdpqfagqtkerlssrqcaafvsgvvkdafilwlnq nvqaaellaemaissaqrrmraakkvvrkk
>1s16A (A:) tynadaievltglepvrrrpgmytdttrpnhlgqevidnsvdealaghakrvdvilhadq sleviddgrgmpvdihpeegvpavelilcrlhaggkfsnknyqfsgglhgvgisvvnals krvevnvrrdgqvyniafengekvqdlqvvgtcgkrntgtsvhfwpdetffdsprfsvsr lthvlkakavlcpgveitfkdeinnteqrwcyqdglndylaeavnglptlpekpfignfa gdteavdwallwlpeggelltesyvnliptmqggthvnglrqglldamrefceyrnilpr gvklsaediwdrcayvlsvkmqdpqfagqtkerlssrqcaafvsgvvkdafilwlnqnvq aaellaemaissaqrrmraa
>1s16B (B:) mtqtynadaievltglepvrrrpgmytdttrpnhlgqevidnsvdealaghakrvdvilh adqsleviddgrgmpvdihpeegvpavelilcrlhaggkfsnknyqfsgglhgvgisvvn alskrvevnvrrdgqvyniafengekvqdlqvvgtcgkrntgtsvhfwpdetffdsprfs vsrlthvlkakavlcpgveitfkdeinnteqrwcyqdglndylaeavnglptlpekpfig nfagdteavdwallwlpeggelltesyvnliptmqggthvnglrqglldamrefceyrni lprgvklsaediwdrcayvlsvkmqdpqfagqtkerlssrqcaafvsgvvkdafilwlnq nvqaaellaemaissaqrrmraakkvvrkk
>1s16B (B:) tynadaievltglepvrrrpgmytdttrpnhlgqevidnsvdealaghakrvdvilhadq sleviddgrgmpvdihpeegvpavelilcrlhaggkfsnknyqfsgglhgvgisvvnals krvevnvrrdgqvyniafengekvqdlqvvgtcgkrntgtsvhfwpdetffdsprfsvsr lthvlkakavlcpgveitfkdeinnteqrwcyqdglndylaeavnglptlpekpfignfa gdteavdwallwlpeggelltesyvnliptmqggthvnglrqglldamrefceyrnilpr gvklsaediwdrcayvlsvkmqdpqfagqtkerlssrqcaafvsgvvkdafilwlnqnvq aaellaemaissaqrrmraa