Chains and heterogens:
PDB Chain Sequences:
>3caaA (A:) thvdlglasanvdfafslykqlvlkapdknvifsplsistalaflslgahnttlteilkg lkfnltetseaeihqsfqhllrtlnqssdelqlsmgnamfvkeqlslldrftedakrlyg seafatdfqdsaaakklindyvkngtrgkitdlikdldsqtmmvlvnyiffkakwempfd pqdthqsrfylskkkwvmvpmmslhhltipyfrdeelsctvvelkytgnasalfilpdqd kmeeveamllpetlkrwrdslefreigelylpkfsisrdynlndillqlgieeaftskad lsgitgarnlavsqvvhkavldvfeegtersaatavkitll
>3caaA (A:) asanvdfafslykqlvlkapdknvifsplsistalaflslgahnttlteilkglkfnlte tseaeihqsfqhllrtlnqssdelqlsmgnamfvkeqlslldrftedakrlygseafatd fqdsaaakklindyvkngtrgkitdlikdldsqtmmvlvnyiffkakwempfdpqdthqs rfylskkkwvmvpmmslhhltipyfrdeelsctvvelkytgnasalfilpdqdkmeevea mllpetlkrwrdslefreigelylpkfsisrdynlndillqlgieeaftskadlsgitga rnlavsqvvhkavldvfeegtersaatavkitll
>3caaB (B:) vetrtivrfnrpflmiivptdtqniffmskvtnpkqa
>3caaB (B:) rtivrfnrpflmiivptdtqniffmskvtnpk