Synonyms : 7, 8-Dihydroneopterintriphosphate Synthetase, GTP Cyclohydrolase I, GTP Cyclohydrolase II, 7, 8 Dihydroneopterintriphosphate Synthetase, 8-Formylhydrolase, GTP, Cyclohydrolase I, GTP, Cyclohydrolase II, GTP, Cyclohydrolase, GTP, Dihydrolase, GTP