Description
An ATP, Mg(2+)-dependent DNA 3'-5' and 5'-3' helicase that may be involved in repair of stalled replication forks. Stimulated by both ss and dsDNA. Unwinds both leading and lagging strands in replication fork structures, unlike orthologs in P. furiosus and M. thermautotrophicus which only unwind the lagging strand and only have 3'-5' helicase activity. Preferentially binds dsDNA with overhangs or branched DNA. Able to anneal DNA substrates that could form a replication fork-like structure, has replication fork reversal activity (at least in vitro).
Family
Belongs to the helicase family. Hel308 subfamily.
Species
Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)
Sequence
METISIDDLPLDIKIIDILKRRGIRTLNPPQSEAIRKGLLDGKRLLVTSPTASGKTLIAELGMINYLLSKGGKAIYITPLRALTNEKYNTFKDWETLGIKTGMTSGDYDTDDAWLENYDIIVTTYEKLDSLWRHKAKWLNEVSYFVLDEFHYLNDPERGPTVESVAIRAKKRGIVLGLSATISNGKEIANWLNAELVATNWRPVPLKEGIIYPEKKGFVVVYKDNTSRKVYGDDAIIAYTLDIVSKGGQVLVFRSSRKLAENTARKIVQYMNFVKLEDKKLLEIARKIKEVEDAGSNEKEDLYNLVLRGVAYHHAGLSKGLRDIIESSFRDRILKVIVATPTLAAGVNLPARAVVIGDIYRYNRKVVGYMDLIPVMDYKQMSGRAGRPGFDENGEAVVVVRNKREAEKVYERYLMSDVEPIESKLGSESAFYSFLISIIASEGEKTTEELMEYVKETLLPKELAKKYFRSGLDWLLQHDIFAEISDKITLTRFGRRISDLYINPFTAVTIREALEKNEKGCEIAYLHLLAYTPDGPSIGVSRAEEDALIDELNCELFVDEPEDEYEFSNYISALKVAYIVYDWVNEIDEDTILGKYGIGSGDLRAIIDTMDWLTYSGYHVASVLELKDHKDILEELHARVKDGVKPELIELVKIPGIGRVRARLLYQHDIKKPEDIVLNPEKVKQLLGPNLGEKIVREAARTIA
Simulated SDS-PAGE

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)
Safety
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Protein synthesis service