# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.508374	Archaea.91975	Thaumarchaeota.5062	Nitrososphaera.1364	nvn.1691	nvn:NVIE_017300   cas4-1; putative CRISPR-associated exonuclease, Cas4 family; K07464 CRISPR-associated exonuclease Cas4 [EC:3.1.12.1]
OC.508374	Archaea.91975	Thaumarchaeota.5062	Nitrososphaera.1364	nev.2445	nev:NTE_02569   CRISPR-associated exonuclease, Cas4 family; K07464 CRISPR-associated exonuclease Cas4 [EC:3.1.12.1]