Chains and heterogens:
PDB Chain Sequences:
>1s6rA (A:) vsekqlaevvantvtplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlfel gsisktftgvlggdaiargeislddpvtrywpqltgkqwqgirmldlatytagglplqvp devtdnaslvrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlkpl kldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmapen vadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvvevn ppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhilealq