Chains and heterogens:
PDB Chain Sequences:
>1bpyA (A:) tlnggitdmltelanfeknvsqaihkynayrkaasviakyphkiksgaeakklpgvgtki aekideflatgklrklekirqddtsssinfltrvsgigpsaarkfvdegiktledlrkne dklnhhqriglkyfgdfekripreemlqmqdivlnevkkvdseyiatvcgsfrrgaessg dmdvllthpsftsestkqpkllhqvveqlqkvhfitdtlskgetkfmgvcqlpskndeke yphrridirlipkdqyycgvlyftgsdifnknmrahalekgftineytirplgvtgvage plpvdsekdifdyiqwkyrepkdrse