sphc:CVN68_12355 K10979 DNA end-binding protein Ku | (GenBank) Ku protein sphc:CVN68_12350 K01971 bifunctional non-homologous end joining protein LigD [EC:6.5.1.1] | (GenBank) ligD; DNA ligase D sphc:CVN68_04675 no KO assigned | (GenBank) cyclase