Chains and heterogens:
PDB Chain Sequences:
>2iitA (A:) trktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfdef ghsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvtws pvghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalwwsp ngtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdslss vtnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgrwn clvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctfit kgtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqyys vsfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldfii lnetkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniivasf dgrgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvtsm vlgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfkqv eyllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythmshf ikqcfslp
>2iitB (B:) trktytltdylkntyrlklyslrwisdheylykqennilvfnaeygnssvflenstfdef ghsindysispdgqfilleynyvkqwrhsytasydiydlnkrqliteeripnntqwvtws pvghklayvwnndiyvkiepnlpsyritwtgkediiyngitdwvyeeevfsaysalwwsp ngtflayaqfndtevplieysfysdeslqypktvrvpypkagavnptvkffvvntdslss vtnatsiqitapasmligdhylcdvtwatqerislqwlrriqnysvmdicdydessgrwn clvarqhiemsttgwvgrfrpsephftldgnsfykiisneegyrhicyfqidkkdctfit kgtwevigiealtsdylyyisneykgmpggrnlykiqlsdytkvtclscelnpercqyys vsfskeakyyqlrcsgpglplytlhssvndkglrvlednsaldkmlqnvqmpskkldfii lnetkfwyqmilpphfdkskkypllldvyagpcsqkadtvfrlnwatylasteniivasf dgrgsgyqgdkimhainrrlgtfevedqieaarqfskmgfvdnkriaiwgwsyggyvtsm vlgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfkqv eyllihgtaddnvhfqqsaqiskalvdvgvdfqamwytdedhgiasstahqhiythmshf ikqcfslp