# OC Root 2nd 3rd PC Gene/Definition OC.166386 Archaea.7523 Crenarchaeota.12689 hbu.836 hbu:Hbut_0868 GTP cyclohydrolase I; K01495 GTP cyclohydrolase IA [EC:3.5.4.16] OC.166386 Archaea.7523 Crenarchaeota.12689 pfm.1653 pfm:Pyrfu_1708 GTP cyclohydrolase I; K01495 GTP cyclohydrolase IA [EC:3.5.4.16] OC.166386 Archaea.7523 Crenarchaeota.12689 pdl.1582 pdl:Pyrde_1605 GTP cyclohydrolase I; K01495 GTP cyclohydrolase IA [EC:3.5.4.16] OC.166386 Archaea.7523 Crenarchaeota.12689 cma.519 cma:Cmaq_0521 GTP cyclohydrolase I; K01495 GTP cyclohydrolase IA [EC:3.5.4.16]