Chains and heterogens:
PDB Chain Sequences:
>1fckA (A:) grrrrsvqwcavsnpeatkcfqwqrnmrkvrgppvscikrdspiqciqaiaenradavtl dggfiyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtgl rrtagwnvpigtlrpflnwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgen kcafssqepyfsysgafkclrdgagdvafirestvfedlsdeaerdeyellcpdntrkpv dkfkdchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdll fkdsaigfsrvppridsglylgsgyftaiqnlrkseeevaarrarvvwcavgeqelrkcn qwsglsegsvtcssasttedcialvlkgeadamsldggyvytagkcglvpvlaenyksqq ssdpdpncvdrpvegylavavvrrsdtsltwnsvkgkkschtavdrtagwnipmgllfnq tgsckfdeyfsqscapgsdprsnlcalcigdeqgenkcvpnsneryygytgafrclaena gdvafvkdvtvlqntdgnnneawakdlkladfallcldgkrkpvtearschlamapnhav vsrmdkverlkqvllhqqakfgrngsdcpdkfclfqsetknllfndnteclarlhgktty ekylgpqyvagitnlkkcstsplleaceflrk
>1fckA (A:) rrrrsvqwcavsnpeatkcfqwqrnmrkvrgppvscikrdspiqciqaiaenradavtld ggfiyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtglr rtagwnvpigtlrpflnwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgenk cafssqepyfsysgafkclrdgagdvafirestvfedlsdeaerdeyellcpdntrkpvd kfkdchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdllf kdsaigfsrvppridsglylgsgyftaiqnlrkseeevaarrarvvwcavgeqelrkcnq wsglsegsvtcssasttedcialvlkgeadamsldggyvytagkcglvpvlaenyksqqs sdpdpncvdrpvegylavavvrrsdtsltwnsvkgkkschtavdrtagwnipmgllfnqt gsckfdeyfsqscapgsdprsnlcalcigdeqgenkcvpnsneryygytgafrclaenag dvafvkdvtvlqntdgnnneawakdlkladfallcldgkrkpvtearschlamapnhavv srmdkverlkqvllhqqakfgrngsdcpdkfclfqsetknllfndnteclarlhgkttye kylgpqyvagitnlkkcstsplleaceflrk