| GCH | GTP cyclohydrolase I |
|---|---|
| GTP-CH | GTP cyclohydrolase I |
| methenyltetrahydromethanopterin cyclohydrolase | <enzyme> From methanobacterium thermoautotrophicum; catalyses the energy-independent hydrolysis of 5,10-methenyl-5,6,7,8-tetrahydromethanopterin to 5-formyl-h4mpt Registry number: EC 3.5.4.27 Synonym: 5,10-methenyl-h4mpt cyclohydrolase, 5,10-mh4mpt cyclohydrolase, 5,10-methenyltetrahydromethanopterin cylohydrolase (26 Jun 1999) |
|---|
| GTP cyclohydrolase | <enzyme> (GTP cyclohydrolase I) or GTP 7,8-8,9-dihydrolase (pyrophosphate-forming) (GTP cyclohydrolase II). An enzyme group that hydrolyzes the imidazole ring of GTP, releasing carbon-8 as formate. Two c-n bonds are hydrolyzed and the pentase unit is isomerised. This is the first step in the synthesis of folic acid from GTP.6 (GTP cyclohydrolase I) and GTP cyclohydrolase II. Chemical name: GTP 7,8-8,9-dihydrolase Registry number: EC 3.5.4.16 (12 Dec 1998) |
|---|---|
| methylene tetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase | <chemical> Bifunctional enzyme which contains mg-nad dependent covalently linked methylenetetrahydrofolate dehydrogenase (EC 1.5.1.15) and methenyltetrahydrofolate cyclohydrolase (EC 3.5.4.9); usually found in prokaryotes Synonym: methf dehydrogenase-cyclohydrolase (26 Jun 1999) |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|