Chains and heterogens:
PDB Chain Sequences:
>1w99A (A:) tpervwndfmtntgnlidqtvtayvrtdanakmtvvkdyldqyttkfntwkrepnnqsyr tavitqfnltsaklretavyfsnlvgyellllpiyaqvanfnlllirdglinaqewslar sagdqlyntmvqytkeyiahsitwynkgldvlrnksngqwitfndykremtiqvldilal fasydprrypadkidntklskteftreiytalvespssksiaaleaaltrdvhlftwlkr vdfwtntiyqdlrflsankigfsytnssamqesgiygssgfgsnlthqiqlnsnvyktsi tdtsspsnrvtkmdfykidgtlasynsnitptpeglrttffgfstnentpnqptvndyth ilsyiktdvidynsnrvsfawthkivdpnnqiytdaitqvpavksnflnatakvikgpgh tggdlvaltsngtlsgrmeiqcktsifndptrsyglriryaanspivlnvsyvlqgvsrg ttistestfsrpnniiptdlkyeefrykdpfdaivpmrlssnqlitiaiqplnmtsnnqv iidrieiipitqsvldet