CryoEM structure of M. mazei topoisomerase VI(A-E342Q)-minicircle DNA complex in asymmetric state
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
Supercoiled DNA recognition and cleavage control in topoisomerase VI.
Etoposide was not observed in the structure
Topoisomerase VI heterotetramer (A2B2) bound to minicircle DNA and ADPNP
Approximately 80 bp of the 306 bp minicircle are visible in EM imaging of the Top6-DNA complex
Summary of order of assembly: minicircle DNA, Top6, then additional buffer components, ending with ADPNP. Sample was soluble and monodisperse.
Minicircle DNA (arbitrary model sequence)
Type II DNA topoisomerase VI subunit B,TopoVI-B
MEGEKGSKTRKGDALAREKLLEIAEKIYNQFEEEVVPSVSLPSRTKANLEYSDESDVWVYGDRESERSAKTVKGAFQLLK TTYATDFLINEHLARNRGSTLRELYYISEGWDYAKFKEQGESDRLIEDLEILTSLQREYFHMRPEEDGATMFGPIEITEQ TKRGERNIHCQKDVGEGGYQIPFNVENIEFQKHDASMIIAIETGGMYARLMENGFDEAYNAILVHLKGQPARSTRRIIKR MNEELGIPVAVFTDGDPWSYRIYASVAYGAIKSAHLSEFMATPAAKFLGLQPSDIVEYELSTDKLTEQDVSALRSELSDP RFESDYWKEQIQLQLDIGKKAQQQAFAGKGLDFVTEVYLPNRLKEMGMI
METPIAEELAKKQKSISVAEFFEKNRQILGFDSAPRSLITTVKEAVDNALDACEEAGILPDILVQVERTGPDYVTVIIED NGPGIVREQIPKVFAKLLYGSRFHALKQSRGQQGIGISAAVLYAQMTAGRHTKILSKTSPTAPAHYYELMINTSTNEPDI LVDEVRDWFRPHGTQIELEMRAAYVKGRRQSIYEYLKATAIVNPHARITLIDPDGNEEVFERATDKMPEPAEEILPHPEG IELGTLMKMLHYTERQKLAPFLRYSFCKIGLLTAEEICKAAGLDPEIDPHALGRHEARKLIEAFEKVKIMAPPTDCLSPI GEDLIYRGLEKETTVDFIATSTRKPAVYSGNPFVVEVGMAYGGNLPKEEKISIMRFANRVPLLYQQGGCVTTHAVEDIKW KQYGLNQPGGGIPVGPVILLIHVASINVPFTSESKDAIADIPVIKEEIDLAIKEVARKLKHYLSKQSNLKKRREKEIIIT KVLPKLAAKVAHVLEKDVPDINPVVAKIMGNLLVHRVIKNNGDGTVDVAIKVKNFGTSAYSFRVHEMLPCKVSGAKPEPK VVTMGNDYDYVWDISASAGSSKVLSYKIESASEEELQKLPQLIVEGIEEELVTGAKAFKGV
(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DA)
National Institutes of Health/National Cancer Institute (NIH/NCI)
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
TOPRIM, GHKL, minicircle DNA, Spo11, ISOMERASE-DNA complex
MEGEKGSKTRKGDALAREKLLEIAEKIYNQFEEEVVPSVSLPSRTKANLEYSDESDVWVYGDRESERSAKTVKGAFQLLK TTYATDFLINEHLARNRGSTLRELYYISEGWDYAKFKEQGESDRLIEDLEILTSLQREYFHMRPEEDGATMFGPIEITEQ TKRGERNIHCQKDVGEGGYQIPFNVENIEFQKHDASMIIAIETGGMYARLMENGFDEAYNAILVHLKGQPARSTRRIIKR MNEELGIPVAVFTDGDPWSYRIYASVAYGAIKSAHLSEFMATPAAKFLGLQPSDIVEYELSTDKLTEQDVSALRSELSDP RFESDYWKEQIQLQLDIGKKAEQQAFAGKGLDFVTEVYLPNRLKEMGMI