Chains and heterogens:
PDB Chain Sequences:
>1hk2A (A:) dahksevahrfkdlgeenfkalvliafaqylqqcpfedhvklvnevtefaktcvadesae ncdkslhtlfgdklctvatlretygemadccakqepernecflqhkddnpnlprlvrpev dvmctafhdneetflkkylyeiarrhpyfyapellffakrykaafteccqaadkaacllp kldelrdegkassakqrlkcaslqkfgerafkawavahlsqrfpkaefaevsklvtdltk vhtecchgdllecaddradlakyicenqdsissklkeccekpllekshciaevendempa dlpslaadfveskdvcknyaeakdvflgmflyeyarrhpdysvvlllrlaktyettlekc caaadphecyakvfdefkplveepqnlikqncelfeqlgeykfqnallvrytkkvpqvst ptlvevsrnlgkvgskcckhpeakrmpcaedylsvvlnqlcvlhektpvsdrvtkcctes lvnrrpcfsalevdetyvpkefnaetftfhadictlsekerqikkqtalvelvkhkpkat keqlkavmddfaafvekcckaddketcfaeegkklvaasqaalgl
>1hk2A (A:) sevahrfkdlgeenfkalvliafaqylqqcpfedhvklvnevtefaktcvadesaencdk slhtlfgdklctdccakqepernecflqhkddnpnlprlvrpevdvmctafhdneetflk kylyeiarrhpyfyapellffakrykaafteccqaadkaacllpkldelrdegkassakq rlkcaslqkfgerafkawavahlsqrfpkaefaevsklvtdltkvhtecchgdllecadd radlakyicenqdsissklkeccekpllekshciaevendempadlpslaadfveskdvc knyaeakdvflgmflyeyarrhpdysvvlllrlaktyettlekccaaadphecyakvfde fkplveepqnlikqncelfeqlgeykfqnallvrytkkvpqvstptlvevsrnlgkvgsk cckhpeakrmpcaedylsvvlnqlcvlhektpvsdrvtkccteslvnrrpcfsalevdet yvpkefnaetftfhadictlsekerqikkqtalvelvkhkpkatkeqlkavmddfaafve kcckaddketcfaeegkklv