Chains and heterogens:
PDB Chain Sequences:
>1vfkA (A:) mlleaifheakgsyaypisetqlrvrlrakkgdvvrcevlyadryaspeeelahalagka gsderfdyfeallecstkrvkyvflltgpqgeavyfgetgfsaerskagvfqyayihrse vfttpewakeaviyqifperfangdpsndppgteqwakdarprhdsfyggdlkgvidrlp yleelgvtalyftpifaspshhkydtadylaidpqfgdlptfrrlvdeahrrgikiilda vfnhagdqffafrdvlqkgeqsrykdwffiedfpvsktsrtnyetfavqvpampklrten pevkeylfdvarfwmeqgidgwrldvanevdhafwrefrrlvkslnpdalivgeiwhdas gwlmgdqfdsvmnylfresvirffatgeihaerfdaeltrarmlypeqaaqglwnlldsh dterfltscggneakfrlavlfqmtylgtpliyygdeigmagatdpdcrrpmiweekeqn rglfefykelirlrhrlasltrgnvrswhadkqanlyafvrtvqdqhvgvvlnnrgekqt vllqvpesggktwldcltgeevhgkqgqlkltlrpyqgmilwngr
>1vfkB (B:) mlleaifheakgsyaypisetqlrvrlrakkgdvvrcevlyadryaspeeelahalagka gsderfdyfeallecstkrvkyvflltgpqgeavyfgetgfsaerskagvfqyayihrse vfttpewakeaviyqifperfangdpsndppgteqwakdarprhdsfyggdlkgvidrlp yleelgvtalyftpifaspshhkydtadylaidpqfgdlptfrrlvdeahrrgikiilda vfnhagdqffafrdvlqkgeqsrykdwffiedfpvsktsrtnyetfavqvpampklrten pevkeylfdvarfwmeqgidgwrldvanevdhafwrefrrlvkslnpdalivgeiwhdas gwlmgdqfdsvmnylfresvirffatgeihaerfdaeltrarmlypeqaaqglwnlldsh dterfltscggneakfrlavlfqmtylgtpliyygdeigmagatdpdcrrpmiweekeqn rglfefykelirlrhrlasltrgnvrswhadkqanlyafvrtvqdqhvgvvlnnrgekqt vllqvpesggktwldcltgeevhgkqgqlkltlrpyqgmilwngr