Chains and heterogens:
PDB Chain Sequences:
>1mptA (A:) aqsvpwgisrvqapaahnrgltgsgvkvavldtgisthpdlnirggasfvpgepstqdgn ghgthvagtiaalnnsigvlgvapsaelyavkvlgasgsgsvssiaqglewagnngmhva nlslgspspsatleqavnsatsrgvlvvaasgnsgagsisyparyanamavgatdqnnnr asfsqygagldivapgvnvqstypgstyaslngtsmatphvagvaalvkqknpswsnvqi rnhlkntatglgntnlygsglvnaeaatr