Chains and heterogens:
PDB Chain Sequences:
>2cauA (A:) mafsarfplwlllgvvllasvsasfahsghsggeaedeseesraqnnpylfrsnkfltlf knqhgslrllqrfnedteklenlrdyrvleycskpntlllphhsdsdllvlvlegqailv lvnpdgrdtykldqgdaikiqagtpfylinpdnnqnlrilkfaitfrrpgtvedfflsst krlpsylsafsknfleasydspydeieqtllqeeqegvivkmpkdqiqeiskhaqsssrk tlssqdkpfnlrsrdpiysnnygklyeitpeknsqlrdldillnclqmnegalfvphyns ratvilvanegraevelvgleqqqqqglesmqlrryaatlsegdiivipssfpvalkaas dlnmvgigvnaennernflaghkenvirqiprqvsdltfpgsgeeveellenqkesyfvd gqprhidaggkarrahlpnlfrtfy
>2cauA (A:) nnpylfrsnkfltlfknqhgslrllqrfnedteklenlrdyrvleycskpntlllphhsd sdllvlvlegqailvlvnpdgrdtykldqgdaikiqagtpfylinpdnnqnlrilkfait frrpgtvedfflsstkrlpsylsafsknfleasydspydeieqtllqeeqegvivkmpdk pfnlrsrdpiysnnygklyeitpeknsqlrdldillnclqmnegalfvphynsratvilv anegraevelvgleqlrryaatlsegdiivipssfpvalkaasdlnmvgigvnaennern flaghkenvirqiprqvsdltfpgsgeeveellenqkesyfvdg