Chains and heterogens:
PDB Chain Sequences:
>1t3sA (A:) srpsdsdvsleedreavrreaerqaqaqlekaktkpvafavrtnvsysaaheddvpvpgm aisfeakdflhvkekfnndwwigrlvkegceigfipsrvklenmrlqheqrakefklhsk ekrmpffkktehtppydvvpsmrpvvlvgpslkgyevtdmmqkalfdflkhrfegrisit rvtadislakrsvlnnpskhaiiersntrsslaevqseierifelartlqlvvldadtin hpaqlsktslapivvyvkisspkvlqrliksrgksqakhlnvqmvaadklaqcppelfdv ildenqledacehladyleaywkathppssnlpnpll
>1t3sA (A:) eedreavrreaerqaqaqlekaktkpvafavrtnvsysaaheddvpvpgmaisfeakdfl hvkekfnndwwigrlvkegceigfipsrvklenmrlqheqrakefkltppydvvpsmrpv vlvgpslkgyevtdmmqkalfdflkhrfegrisitrvtadislakrsvlnntrsslaevq seierifelartlqlvvldadtinhpaqlsktslapivvyvkisspkvlqrliksrgksq akhlnvqmvaadklaqcppelfdvildenqledacehladyleaywkathppss