Chains and heterogens:
PDB Chain Sequences:
>1ft2A (A:) flsldsptyvlyrdraewadidpvpqndgpspvvqiiysekfrdvydyfravlqrderse rafkltrdaielnaanytvwhfrrvllrslqkdlqeemnyiiaiieeqpknyqvwhhrrv lvewlkdpsqelefiadilnqdaknyhawqhrqwviqefrlwdnelqyvdqllkedvrnn svwnqrhfvisnttgysdravlerevqytlemiklvphnesawnylkgilqdrglsrypn llnqlldlqpshsspyliaflvdiyedmlenqcdnkedilnkalelceilakekdtirke ywryigrslqskhsr
>1ft2B (B:) plyslrpeharerlqddsvetvtsieqakveekiqevfssykfnhlvprlvlqrekhfhy lkrglrqltdayecldasrpwlcywilhslelldepipqivatdvcqflelcqspdggfg ggpgqyphlaptyaavnalciigteeaynvinrekllqylyslkqpdgsflmhvggevdv rsaycaasvasltniitpdlfegtaewiarcqnweggiggvpgmeahggytfcglaalvi lkkerslnlksllqwvtsrqmrfeggfqgrcnklvdgcysfwqagllpllhralhaqgdp alsmshwmfhqqalqeyilmccqcpagglldkpgksrdfyhtcyclsglsiaqhfgsgam lhdvvmgvpenvlqpthpvynigpdkviqatthflqkpvpg