Chains and heterogens:
PDB Chain Sequences:
>1fsuA (A:) srpphlvflladdlgwndvgfhgsrirtphldalaaggvlldnyytqplatpsrsqlltg ryqirtglqhqiiwpcqpscvpldekllpqllkeagytthmvgkwhlgmyrkeclptrrg fdtyfgyllgsedyysherctlidalnvtrcaldfrdgeevatgyknmystniftkraia litnhppekplflylalqsvheplqvpeeylkpydfiqdknrhhyagmvslmdeavgnvt aalkssglwnntvfifstdnggqtlaggnnwplrgrkwslweggvrgvgfvaspllkqkg vknrelihisdwlptlvklarghtngtkpldgfdvwktisegspspriellhnidpnfvd sspcprnsmapakddsslpeysafntsvhaairhgnwklltgypgcgywfpppsqynvse ipssdpptktlwlfdidrdpeerhdlsreyphivtkllsrlqfyhkhsvpvyfpaqdprc dpkatgvwgpwm
>1fsuA (A:) srpphlvflladdlgwndvgfhgsrirtphldalaaggvlldnyytqplatpsrsqlltg ryqirtglqhqiiwpcqpscvpldekllpqllkeagytthmvgkwhlgmyrkeclptrrg fdtyfgyllgsedyysherctlidalnvtrcaldfrdgeevatgyknmystniftkraia litnhppekplflylalqsvheplqvpeeylkpydfiqdknrhhyagmvslmdeavgnvt aalkssglwnntvfifstdnggqtlaggnnwplrgrkwslweggvrgvgfvaspllkqkg vknrelihisdwlptlvklarghtngtkpldgfdvwktisegspspriellhnidpnfvd sspcsafntsvhaairhgnwklltgypgcgywfpppsqynvseipssdpptktlwlfdid rdpeerhdlsreyphivtkllsrlqfyhkhsvpvyfpaqdprcdpkatgvwgpwm