Chains and heterogens:
PDB Chain Sequences:
>1ai6A (A:) eqssseikivrdeygmphiyandtwhlfygygyvvaqdrlfqmemarrstqgtvaevlgk dfvkfdkdirrnywpdairaqiaalspedmsilqgyadgmnawidkvntnpetllpkqfn tfgftpkrwepfdvamifvgtmanrfsdstseidnlalltalkdkygvsqgmavfnqlkw lvnpsapttiavqesnyplkfnqqnsqta
>1ai6A (A:) ssseikivrdeygmphiyandtwhlfygygyvvaqdrlfqmemarrstqgtvaevlgkdf vkfdkdirrnywpdairaqiaalspedmsilqgyadgmnawidkvntnpetllpkqfntf gftpkrwepfdvamifvgtmanrfsdstseidnlalltalkdkygvsqgmavfnqlkwlv npsapttiavqesny
>1ai6B (B:) snmwvigkskaqdakaimvngpqfgwyapaytygiglhgagydvtgntpfaypglvfghn gviswgstagfgddvdifaerlsaekpgyylhngkwvkmlsreetitvkngqaetftvwr tvhgnilqtdqttqtayaksrawdgkevasllawthqmkaknwqqwtqqaakqaltinwy yadvngnigyvhtgaypdrqsghdprlpvpgtgkwdwkgllpfemnpkvynpqsgyianw nnspqkdypasdlfaflwggadrvteidrlleqkprltadqawdvirqtsrqdlnlrlfl ptlqaatsgltqsdprrqlvetltrwdginllnddgktwqqpgsailnvwltsmlkrtvv aavpmpfdkwysasgyettqdgptgslnisvgakilyeavqgdkspipqavdlfagkpqq evvlaaledtwetlskrygnnvsnwktpamaltfrannffgvpqaaaeetrhqaeyqnrg tendmivfspttsdrpvlawdvvapgqsgfiapdgtvdkhyedqlkmyenfgrkslwltk qdveahkesqevlhvqr