# OC Root 2nd 3rd 4th PC Gene/Definition OC.309131 Archaea.66157 Euryarchaeota.51202 Methanococcus.4017 mvo.498 mvo:Mvol_0560 CRISPR-associated helicase Cas3; K07012 CRISPR-associated endonuclease/helicase Cas3 [EC:3.1.-.- 3.6.4.-]