Chains and heterogens:
PDB Chain Sequences:
>2cavA (A:) nnpylfrsnkfltlfknqhgslrllqrfnedteklenlrdyrvleycskpntlllphhsd sdllvlvlegqailvlvnpdgrdtykldqgdaikiqagtpfylinpdnnqnlrilkfait frrpgtvedfflsstkrlpsylsafsknfleasydspydeieqtllqeeqegvivkmpkd qiqeiskhaqsssrktlssqdkpfnlrsrdpiysnnygklyeitpeknsqlrdldillnc lqmnegalfvphynsratvilvanegraevelvgleqqqqqglesmqlrryaatlsegdi ivipssfpvalkaasdlnmvgigvnaennernflaghkenvirqiprqvsdltfpgsgee veellenqkesyfvdgq
>2cavA (A:) nnpylfrsnkfltlfknqhgslrllqrfnedteklenlrdyrvleycskpntlllphhsd sdllvlvlegqailvlvnpdgrdtykldqgdaikiqagtpfylinpdnnqnlrilkfait frrpgtvedfflsstkrlpsylsafsknfleasydspydeieqtllqeeqegvivkmpkd dkpfnlrsrdpiysnnygklyeitpeknsqlrdldillnclqmnegalfvphynsratvi lvanegraevelvglqlrryaatlsegdiivipssfpvalkaasdlnmvgigvnaenner nflaghkenvirqiprqvsdltfpgsgeeveellenqkesyfvdgq