swi:Swit_5285 K03168 DNA topoisomerase I [EC:5.6.2.1] | (GenBank) putative DNA topoisomerase I swi:Swit_1492 no KO assigned | (GenBank) anti-sigma-factor antagonist swi:Swit_3981 K10979 DNA end-binding protein Ku | (GenBank) Ku family containing protein swi:Swit_3982 K01971 bifunctional non-homologous end joining protein LigD [EC:6.5.1.1] | (GenBank) DNA ligase D