syb:TZ53_20780 K10979 DNA end-binding protein Ku | (GenBank) DNA repair protein syb:TZ53_20775 K01971 bifunctional non-homologous end joining protein LigD [EC:6.5.1.1] | (GenBank) ATP-dependent DNA ligase syb:TZ53_00125 no KO assigned | (GenBank) cyclase