Chains and heterogens:
PDB Chain Sequences:
>1e7cA (A:) hksevahrfkdlgeenfkalvliafaqylqqcpfedhvklvnevtefaktcvadesaenc dkslhtlfgdklctvatlretygemadccakqepernecflqhkddnpnlprlvrpevdv mctafhdneetflkkylyeiarrhpyfyapellffakrykaafteccqaadkaacllpkl delrdegkassakqrlkcaslqkfgerafkawavarlsqrfpkaefaevsklvtdltkvh tecchgdllecaddradlakyicenqdsissklkeccekpllekshciaevendempadl pslaadfveskdvcknyaeakdvflgmflyeyarrhpdysvvlllrlaktyettlekcca aadphecyakvfdefkplveepqnlikqncelfeqlgeykfqnallvrytkkvpqvstpt lvevsrnlgkvgskcckhpeakrmpcaedylsvvlnqlcvlhektpvsdrvtkccteslv nrrpcfsalevdetyvpkefnaetftfhadictlsekerqikkqtalvelvkhkpkatke qlkavmddfaafvekcckaddketcfaeegkklvaasqaalg