Chains and heterogens:
PDB Chain Sequences:
>1yt3A (A:) mnyqmittddalaslceavrafpaialdtefvrtrtyypqlgliqlfdgehlalidplgi tdwsplkailrdpsitkflhagsedlevflnvfgelpqplidtqilaafcgrpmswgfas mveeysgvtldksesrtdwlarplterqceyaaadvwyllpitaklmveteasgwlpaal decrlmqmrrqevvapedawrditnawqlrtrqlaclqlladwrlrkarerdlavnfvvr eehlwsvarympgslgeldslglsgseirfhgktllalvekaqtlpedalpqpmlnlmdm pgyrkafkaikslitdvsethkisaellasrrqinqllnwhwklkpqnnlpelisgwrge lmaealhnllqeypq