CATH Classification

Domain Context

CATH Clusters

Superfamily Urate Oxidase;
Functional Family

Enzyme Information

3.5.4.16
GTP cyclohydrolase I.
based on mapping to UniProt Q82VD1
GTP + H(2)O = formate + 2-amino-4-hydroxy-6-(erythro-1,2,3- trihydroxypropyl)-dihydropteridine triphosphate.
-!- The reaction involves hydrolysis of two C-N bonds and isomerization of the pentose unit; the recyclization may be non-enzymic. -!- Involved in the de novo synthesis of tetrahydrobiopterin from GTP, with the other enzymes involved being EC 1.1.1.153 and EC 4.2.3.12.

UniProtKB Entries (1)

Q82VD1
GCH4_NITEU
Nitrosomonas europaea ATCC 19718
GTP cyclohydrolase FolE2

PDB Structure

PDB 2R5R
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
The crystal structure of DUF198 from Nitrosomonas europaea ATCC 19718.
Tan, K., Wu, R., Nocek, B., Bigelow, L., Patterson, S., Freeman, L., Bargassa, M., Joachimiak, A.
To be Published
CATH-Gene3D is a Global Biodata Core Resource Learn more...