Chains and heterogens:
PDB Chain Sequences:
>1xx2A (A:) tpvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlf elgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplq vpdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlk plkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmap envadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvae vnppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal q
>1xx2A (A:) pvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlfe lgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplqv pdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlkp lkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmape nvadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvaev nppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal
>1xx2B (B:) tpvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlf elgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplq vpdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlk plkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmap envadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvae vnppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal q
>1xx2B (B:) pvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlfe lgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplqv pdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlkp lkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmape nvadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvaev nppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal