Chains and heterogens:
PDB Chain Sequences:
>1k8iA (A:) astpvfwddpqnhtfrhtlfcqdgipniglsetydedelfsfdfsqntrvprlpdfaewa qgqgdasaiafdksfcemlmrevspklegqipvsrglpvaevftlkplefgkpntlvcfi snlfpptltvnwqlhsapvegasptsisavdgltfqafsylnftpepfdlysctvtheid rytaiaywvpq
>1k8iA (A:) qnhtfrhtlfcqdgipniglsetydedelfsfdfsqntrvprlpdfaewaqgqgdasaia fdksfcemlmrevspklegqipvsrglpvaevftlkplefgkpntlvcfisnlfpptltv nwqlhsapvegasptsisavdgltfqafsylnftpepfdlysctvtheidrytaiaywvp q
>1k8iB (B:) gfvahvestcvlndagtpqdftycvsfnkdllacwdpdvgkivpcefgvlsrlaeiisni lneqeslihrlqnglqdcathtqpfwdvlthrtrapsvrvaqttpfntrepvmlacyvwg fypadvtitwmkngqlvpshsnkektaqpngdwtyqtvsylaltpsygdvytcvvqhsgt sepirgdwtpg
>1k8iB (B:) gfvahvestcvlndagtpqdftycvsfnkdllacwdpdvgkivpcefgvlsrlaeiisni lneqeslihrlqnglqdcathtqpfwdvlthrtrapsvrvaqttpfntrepvmlacyvwg fypadvtitwmkngqlvpshsnkektaqpngdwtyqtvsylaltpsygdvytcvvqhsgt sepirgdwtp