Chains and heterogens:
PDB Chain Sequences:
>1et5A (A:) ataaeiaalprqkvelvdppfvhahsqvaeggpkvveftmvieekkividdagtevhama fngtvpgplmvvhqddyleltlinpetntlmhninfhaatgalgggglteinpgektilr fkatkpgvfvyhcappgmvpwhvvsgmngaimvlpreglhdgkgkaltydkiyyvgeqdf yvprdengkykkyeapgdayedtvkvmrtltpthvvfngavgaltgdkamtaavgekvli vhsqanrdtrphligghgdyvwatgkfntppdvdqetwfipggaagaafytfqqpgiyay vnhnlieafelgaaahfkvtgewnddlmtsvlapsg