# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.508376	Archaea.66140	Euryarchaeota.51185	Methanococcus.3997	mvo.460	mvo:Mvol_0521   CRISPR-associated protein Cas4; K07464 CRISPR-associated exonuclease Cas4 [EC:3.1.12.1]