Chains and heterogens:
PDB Chain Sequences:
>1f9tA (A:) gnirvycrirpalknlensdtslinvnefddnsgvqsmevtkiqntaqvhefkfdkifdq qdtnvdvfkevgqlvqssldgynvcifaygqtgsgktftmlnpgdgiipstishifnwin klktkgwdykvncefieiynenivdllrsdnnnkedtsiglkheirhdqetktttitnvt sckleseemveiilkkanklrstastasnehssrshsifiihlsgsnaktgahsygtlnl vdlagserinvsqvvgdrlretqninkslsclgdvihalgqpdstkrhipfrnskltyll qysltgdsktlmfvnispssshinetlnslrfaskv
>1f9tA (A:) gnirvycrirpalknlensdtslinvnefddnsgvqsmevtkiqntaqvhefkfdkifdq qdtnvdvfkevgqlvqssldgynvcifaygqtgsgktftmlnpgdgiipstishifnwin klktkgwdykvncefieiynenivdllkheirhdqetktttitnvtsckleseemveiil kkanklrstastasnehssrshsifiihlsgsnatgahsygtlnlvdlagserretqnin kslsclgdvihalgqhipfrnskltyllqysltgdsktlmfvnispssshinetlnslrf askv