Chains and heterogens:
PDB Chain Sequences:
>1a99A (A:) qktlhiynwsdyiapdtvanfeketgikvvydvfdsnevlegklmagstgfdlvvpsasf lerqltagvfqpldksklpewknldpellklvakhdpdnkfampymwattgigynvdkvk avlgenapvdswdlilkpenleklkscgvsfldapeevfatvlnylgkdpnstkaddytg patdlllklrpniryfhssqyindlangdicvaigwagdvwqasnrakeakngvnvsfsi pkegamaffdvfampadaknkdeayqflnyllrpdvvahisdhvfyanankaatplvsae vrenpgiyppadvraklftlkvqdpkidrvrtrawtkvksg
>1a99B (B:) qktlhiynwsdyiapdtvanfeketgikvvydvfdsnevlegklmagstgfdlvvpsasf lerqltagvfqpldksklpewknldpellklvakhdpdnkfampymwattgigynvdkvk avlgenapvdswdlilkpenleklkscgvsfldapeevfatvlnylgkdpnstkaddytg patdlllklrpniryfhssqyindlangdicvaigwagdvwqasnrakeakngvnvsfsi pkegamaffdvfampadaknkdeayqflnyllrpdvvahisdhvfyanankaatplvsae vrenpgiyppadvraklftlkvqdpkidrvrtrawtkvksg
>1a99C (C:) qktlhiynwsdyiapdtvanfeketgikvvydvfdsnevlegklmagstgfdlvvpsasf lerqltagvfqpldksklpewknldpellklvakhdpdnkfampymwattgigynvdkvk avlgenapvdswdlilkpenleklkscgvsfldapeevfatvlnylgkdpnstkaddytg patdlllklrpniryfhssqyindlangdicvaigwagdvwqasnrakeakngvnvsfsi pkegamaffdvfampadaknkdeayqflnyllrpdvvahisdhvfyanankaatplvsae vrenpgiyppadvraklftlkvqdpkidrvrtrawtkvksg
>1a99D (D:) qktlhiynwsdyiapdtvanfeketgikvvydvfdsnevlegklmagstgfdlvvpsasf lerqltagvfqpldksklpewknldpellklvakhdpdnkfampymwattgigynvdkvk avlgenapvdswdlilkpenleklkscgvsfldapeevfatvlnylgkdpnstkaddytg patdlllklrpniryfhssqyindlangdicvaigwagdvwqasnrakeakngvnvsfsi pkegamaffdvfampadaknkdeayqflnyllrpdvvahisdhvfyanankaatplvsae vrenpgiyppadvraklftlkvqdpkidrvrtrawtkvksg