Chains and heterogens:
PDB Chain Sequences:
>1fgs_ (-) mnytetvayihsfprlaktgdhrriltllhalgnpqqqgryihvtgtngkgsaanaiahv leasgltvglytspfimrfnerimidhepipdaalvnavafvraalerlqqqqadfnvte fefitalaywyfrqrqvdvavievgiggdtdstnvitpvvsvltevaldhqkllghtita iakhkagiikrgipvvtgnlvpdaaavvaakvattgsqwlrfdrdfsvpkaklhgwgqrf tyedqdgrisdlevplvgdyqqrnmaiaiqtakvyakqtewpltpqnirqglaashwpar lekisdtplividgahnpdginglitalkqlfsqpitviagiladkdyaamadrltaafs tvylvpvpgtpralpeagyealhegrlkdswqealaaslndvpdqpivitgslylasavr qtllggks
>1fgs_ (-) mnytetvayihsfprlagdhrriltllhalgnpqqqgryihvtgtngkgsaanaiahvle asgltvglytspfimrfnerimidhepipdaalvnavafvraalerlqqqqadfnvtefe fitalaywyfrqrqvdvavievgdstnvitpvvsvltevaldtitaiakhkagiikrgip vvtgnlvpdaaavvaakvattgsqwlrfdrdfsvpkaklhgwgqrftyedqdgrisdlev plvgdyqqrnmaiaiqtakvyakqtewpltpqnirqglaashwparlekisdtplividg ahnpdginglitalkqlfsqpitviagyaamadrltaafstvylvpvpgtprgrlkdswq ealaaslndvpdqpivitgslylasavrqtllg