Chains and heterogens:
PDB Chain Sequences:
>1sqyA (A:) grrrsvqwctvsnpeatkcfqwqrnmrrvrgppvscvkrdsptqciqaiaenradavtld ggfiyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtglr rtagwnvpigtlrpflnwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgenk cafssqepyfsysgafkclrdgagdvafirestvfedlsdeaerdeyellcpdntrkpvd kfkdchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspafqlfgspsgqkdllf kdsaigfsrvppridsglylgsgyftaiqnlrkseeevaarrarvvwcavgeqelrkcnq wsglsegsvtcssasttedcialvlkgeadamsldggyvytagkcglvpvlaenyksqqs sdpdpncvdrpvegylavavvrrsdtsltwnsvkgkkschtavdrtagwnipmgllfnqt gsckfdeyfsqscapgrdprsnlcalcigdeqgenkcvpnsneryygytgafrclaenag dvafvkdvtvlqntdgnnneawakdlkladfallcldgkrkpvtearschlamapnhavv srmdkverlkqvllhqqakfgrngsdcpdkfclfqsetknllfndnteclarlhgkttye kylgpqyvagitnlkkcstsplleaceflrk