sch:Sphch_3000 K10979 DNA end-binding protein Ku | (GenBank) DNA repair protein sch:Sphch_2999 K01971 bifunctional non-homologous end joining protein LigD [EC:6.5.1.1] | (GenBank) DNA ligase D sch:Sphch_1776 K01061 carboxymethylenebutenolidase [EC:3.1.1.45] | (GenBank) Carboxymethylenebutenolidase