Chains and heterogens:
PDB Chain Sequences:
>1a3nA (A:) vlspadktnvkaawgkvgahageygaealermflsfpttktyfphfdlshgsaqvkghgk kvadaltnavahvddmpnalsalsdlhahklrvdpvnfkllshcllvtlaahlpaeftpa vhasldkflasvstvltskyr
>1a3nB (B:) vhltpeeksavtalwgkvnvdevggealgrllvvypwtqrffesfgdlstpdavmgnpkv kahgkkvlgafsdglahldnlkgtfatlselhcdklhvdpenfrllgnvlvcvlahhfgk eftppvqaayqkvvagvanalahkyh
>1a3nB (B:) hltpeeksavtalwgkvnvdevggealgrllvvypwtqrffesfgdlstpdavmgnpkvk ahgkkvlgafsdglahldnlkgtfatlselhcdklhvdpenfrllgnvlvcvlahhfgke ftppvqaayqkvvagvanalahkyh
>1a3nC (C:) vlspadktnvkaawgkvgahageygaealermflsfpttktyfphfdlshgsaqvkghgk kvadaltnavahvddmpnalsalsdlhahklrvdpvnfkllshcllvtlaahlpaeftpa vhasldkflasvstvltskyr
>1a3nD (D:) vhltpeeksavtalwgkvnvdevggealgrllvvypwtqrffesfgdlstpdavmgnpkv kahgkkvlgafsdglahldnlkgtfatlselhcdklhvdpenfrllgnvlvcvlahhfgk eftppvqaayqkvvagvanalahkyh
>1a3nD (D:) hltpeeksavtalwgkvnvdevggealgrllvvypwtqrffesfgdlstpdavmgnpkvk ahgkkvlgafsdglahldnlkgtfatlselhcdklhvdpenfrllgnvlvcvlahhfgke ftppvqaayqkvvagvanalahkyh