Chains and heterogens:
PDB Chain Sequences:
>1bkaA (A:) grrrsvqwcavsqpeatkcfqwqrnmrkvrgppvscikrdspiqciqaiaenradavtld ggfiyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtglr rtagwnvpigtlrpflnwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgenk cafssqepyfsysgafkclrdgagdvafirestvfedlsdeaerdeyellcpdntrkpvd kfkdchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdllf kdsaigfsrvppridsglylgsgyftaiqnlrkseeevaarrarvvwcavgeqelrkcnq wsglsegsvtcssasttedcialvlkgeadamsldggyvytagkcglvpvlaenyksqqs sdpdpncvdrpvegylavavvrrsdtsltwnsvkgkkschtavdrtagwnipmgllfnqt gsckfdeyfsqscapgsdprsnlcalcigdeqgenkcvpnsneryygytgafrclaenag dvafvkdvtvlqntdgnnneawakdlkladfallcldgkrkpvtearschlamapnhavv srmdkverlkqvllhqqakfgrngsdcpdkfclfqsetknllfndnteclarlhgkttye kylgpqyvagitnlkkcstsplleaceflrk
>1bkaA (A:) rsvqwcavsqpeatkcfqwqrnmrkvrgppvscikrdspiqciqaiaenradavtldggf iyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtglrrta gwnvpigtlrpflnwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgenkcaf ssqepyfsysgafkclrdgagdvafirestvfedlsdeaerdeyellcpdntrkpvdkfk dchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdllfkds aigfsrvppridsglylgsgyftaiqnlrkseeevaarrarvvwcavgeqelrkcnqwsg lsegsvtcssasttedcialvlkgeadamsldggyvytagkcglvpvlaenyksqqssdp dpncvdrpvegylavavvrrsdtsltwnsvkgkkschtavdrtagwnipmgllfnqtgsc kfdeyfsqscapgsdprsnlcalcigdeqgenkcvpnsneryygytgafrclaenagdva fvkdvtvlqntdgnnneawakdlkladfallcldgkrkpvtearschlamapnhavvsrm dkverlkqvllhqqakfgrngsdcpdkfclfqsetknllfndnteclarlhgkttyekyl gpqyvagitnlkkcstsplleaceflrk