psk:U771_29050 K01012 biotin synthase [EC:2.8.1.6] | (GenBank) biotin synthase psk:U771_15340 K01971 bifunctional non-homologous end joining protein LigD [EC:6.5.1.1] | (GenBank) ligD; ATP-dependent DNA ligase psk:U771_15345 K10979 DNA end-binding protein Ku | (GenBank) DNA repair protein