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| Product | Description | |
|---|---|---|
| GTP cyclohydrolase I | The reaction involves hydrolysis of two C-N bonds and isomerization of the pentose unit; the recyclization may be non-enzymic. This enzyme is involved in the de novo synthesis of tetrahydrobiopterin from GTP, with the other enzymes involved being EC 1.1.1.153 (sepiapterin reductase) and EC 4.2.3.12 (6-pyruvoyltetrahydropterin synthase). Group: Enzymes. Synonyms: GTP cyclohydrolase; guanosine triphosphate cyclohydrolase; guanosine triphosphate 8-deformylase; dihydroneopterin triphosphate synthase; GTP 8-formylhydrolase. Enzyme Commission Number: EC 3.5.4.16. CAS No. 37289-19-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4542; GTP cyclohydrolase I; EC 3.5.4.16; 37289-19-3; GTP cyclohydrolase; guanosine triphosphate cyclohydrolase; guanosine triphosphate 8-deformylase; dihydroneopterin triphosphate synthase; GTP 8-formylhydrolase. Cat No: EXWM-4542. |  |
| GTP cyclohydrolase II | Two C-N bonds are hydrolysed, releasing formate, with simultaneous removal of the terminal diphosphate. Group: Enzymes. Synonyms: guanosine triphosphate cyclohydrolase II; GTP-8-formylhydrolase. Enzyme Commission Number: EC 3.5.4.25. CAS No. 56214-35-8. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4552; GTP cyclohydrolase II; EC 3.5.4.25; 56214-35-8; guanosine triphosphate cyclohydrolase II; GTP-8-formylhydrolase. Cat No: EXWM-4552. | |
| GTP cyclohydrolase IIa | Requires Mg2+. This enzyme catalyses the hydrolysis of the imidazole ring of guanosine 5'-triphosphate, N7-methylguanosine 5'-triphosphate or inosine 5'-triphosphate. Xanthosine 5'-triphosphate and ATP are not substrates. It also catalyses the hydrolysis of diphosphate to form two equivalents of phosphate. Unlike GTP cyclohydrolase II (EC 3.5.4.25), this enzyme does not release formate, but does hydrolyse the diphosphate from GTP to phosphate. Group: Enzymes. Enzyme Commission Number: EC 3.5.4.29. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4556; GTP cyclohydrolase IIa; EC 3.5.4.29. Cat No: EXWM-4556. | |
| GTP cyclohydrolase IV | Requires Fe2+. A zinc protein. The enzyme is involved in methanopterin biosynthesis in methanogenic archaea. cf. GTP cyclohydrolase I (EC 3.5.4.16), GTP cyclohydrolase II (EC 3.5.4.25) and GTP cyclohydrolase IIa (EC 3.5.4.29). Group: Enzymes. Synonyms: MptA; GTP cyclohydrolase MptA. Enzyme Commission Number: EC 3.5.4.39. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4567; GTP cyclohydrolase IV; EC 3.5.4.39; MptA; GTP cyclohydrolase MptA. Cat No: EXWM-4567. | |
| Monoclonal Anti-GTP cyclohydrolase I antibody produced in rat | ~1.0 mg/mL, clone MGTP 6H11, purified immunoglobulin. Group: Fluorescence/luminescence spectroscopy. |  |
| 2,4-Diamino-6-hydroxypyrimidine | 2,4-Diamino-6-hydroxypyrimidine is a specific GTP cyclohydrolase I inhibitor (the rate-limiting enzyme in de novo pterin synthesis). 2,4-Diamino-6-hydroxypyrimidine blocks Tetrahydrobiopterin (BH4) synthesis and suppresses NO production [1] [2]. Uses: Scientific research. Group: Signaling pathways. CAS No. 56-06-4. Pack Sizes: 10 mM * 1 mL; 100 mg. Product ID: HY-100954. |  |
| 2-amino-5-formylamino-6-ribosylaminopyrimidin-4(3H)-one 5'-monophosphate deformylase | The enzyme catalyses the second step in archaeal riboflavin and 7,8-didemethyl-8-hydroxy-5-deazariboflavin biosynthesis. The first step is catalysed by EC 3.5.4.29 (GTP cyclohydrolase IIa). The bacterial enzyme, EC 3.5.4.25 (GTP cyclohydrolase II) catalyses both reactions. Group: Enzymes. Synonyms: ArfB. Enzyme Commission Number: EC 3.5.1.102. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4381; 2-amino-5-formylamino-6-ribosylaminopyrimidin-4(3H)-one 5'-monophosphate deformylase; EC 3.5.1.102; ArfB. Cat No: EXWM-4381. | |
| 6,7-Dimethyltetrahydropterin hydrochloride | 6,7-Dimethyltetrahydropterin is a non-competitive inhibitor of GTP cyclohydrolase I exhibiting an IC50 of 76-112 μM. Synonyms: 2-Amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride. Grade: ≥99%. CAS No. 167423-51-0. Molecular formula: C8H13N5O·HCl. Mole weight: 231.7. |  |
| 6-pyruvoyltetrahydropterin synthase | Catalyses triphosphate elimination and an intramolecular redox reaction in the presence of Mg2+. It has been identified in human liver. This enzyme is involved in the de novo synthesis of tetrahydrobiopterin from GTP, with the other enzymes involved being EC 1.1.1.153 (sepiapterin reductase) and EC 3.5.4.16 (GTP cyclohydrolase I). Group: Enzymes. Synonyms: 2-amino-4-oxo-6-[(1S,2R)-1,2-dihydroxy-3-triphosphooxypropyl]-7,8-dihydroxypteridine triphosphate lyase; 6-[(1S,2R)-1,2-dihydroxy-3-triphosphooxypropyl]-7,8-dihydropterin triphosphate-lyase (6-pyruvoyl-5,6,7,8-tetrahydropterin-forming). Enzyme Commission Number: EC 4.2.3.12. CAS No. 97089-82-2. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-5132; 6-pyruvoyltetrahydropterin synthase; EC 4.2.3.12; 97089-82-2; 2-amino-4-oxo-6-[(1S,2R)-1,2-dihydroxy-3-triphosphooxypropyl]-7,8-dihydroxypteridine triphosphate lyase; 6-[(1S,2R)-1,2-dihydroxy-3-triphosphooxypropyl]-7,8-dihydropterin triphosphate-lyase (6-pyruvoyl-5,6,7,8-tetrahydropterin-forming). Cat No: EXWM-5132. | |
| 7,8-dihydro biopterin | 7,8-dihydro biopterin is a precursor of BH4 synthesis and a noncompetitive inhibitor of GCH-I (GTP cyclohydrolase I). It is the reduced form of Biopterin. Synonyms: 7,8-Dihydro-L-biopterin; 2-Amino-6-[(1R,2S)-1,2-dihydroxypropyl]-7,8-dihydro-4(3H)-pteridinone; L-erythro-7,8-Dihydrobiopterin; L-erythro-Dihydrobiopterin. Grade: > 95%. CAS No. 6779-87-9. Molecular formula: C9H13N5O3. Mole weight: 239.24. | |
| 7,8-Dihydro-L-biopterin | 7,8-dihydro-L-Biopterin is a precursor of BH4 synthesis and a noncompetitive inhibitor of GCH-I (GTP cyclohydrolase I), with a Ki of 14.4 μM. Applications: A precursor of bh4 synthesis. Group: Coenzymes. Synonyms: BH2; Dihydrobiopterin; Quinonoid dihydrobiopterin. CAS No. 6779-87-9. Purity: ≥98%. Mole weight: 239.23. Appearance: Powder. Form: Solid. BH2; Dihydrobiopterin; Quinonoid dihydrobiopterin; 7,8-Dihydro-L-biopterin; 6779-87-9. Cat No: COEC-066. | |
| 7,8-Dihydro-L-biopterin-d3 | 7,8-Dihydro-L-biopterin-d3 is a labeled reduced form of Biopterin. An oxidation product of tetrahydrobiopterin, a naturally occurring cofactor of the aromatic amino acid hydroxylase, is involved in the synthesis of tyrosine and neurotransmitters dopamine and serotonin. It is a noncompetitive inhibitor of GTP cyclohydrolase I, with a Ki of 14.4 μM. Applications: Noncompetitive inhibitor of gtp cyclohydrolase i. Group: Coenzymes. Synonyms: 2-Amino-6-[(1R,2S)-1,2-dihydroxypropyl]-7,8-dihydro-4(3H)-pteridinone; 7,8-Dihydrobiopterin. CAS No. 6779-87-9 (unlabeled). Mole weight: 242.25. Form: Solid. 2-Amino-6-[(1R,2S)-1,2-dihydroxypropyl]-7,8-dihydro-4(3H)-pteridinone; 7,8-Dihydrobiopterin; 7,8-Dihydro-L-biopterin-d3; 6779-87-9 (unlabeled). Cat No: COEC-091. | |
| diamino hydroxyphosphoribosylaminopyrimidine deaminase | The substrate is the product of EC 3.5.4.25 GTP cyclohydrolase II. Group: Enzymes. Enzyme Commission Number: EC 3.5.4.26. CAS No. 68994-19-4. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4553; diamino hydroxyphosphoribosylaminopyrimidine deaminase; EC 3.5.4.26; 68994-19-4. Cat No: EXWM-4553. | |
| preQ1 synthase | The reaction occurs in the reverse direction. This enzyme catalyses one of the early steps in the synthesis of queuosine (Q-tRNA), and is followed by the action of EC 2.4.2.29, queuine tRNA-ribosyltransferase. Queuosine is found in the wobble position of tRNAGUN in Eukarya and Bacteria and is thought to be involved in translational modulation. The enzyme is not a GTP cyclohydrolase, as was thought previously based on sequence-homology studies. Group: Enzymes. Synonyms: YkvM; QueF; preQ0 reductase; preQ0 oxidoreductase; 7-cyano-7-deazaguanine reductase; queuine synthase (incorrect as queuine is not the product); queuine:NADP+ oxidoreductase (incorrect as queuine is not the product). Enzyme Commission Number: EC 1.7.1.13. CAS No. 1256460-80-6. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1606; preQ1 synthase; EC 1.7.1.13; 1256460-80-6; YkvM; QueF; preQ0 reductase; preQ0 oxidoreductase; 7-cyano-7-deazaguanine reductase; queuine synthase (incorrect as queuine is not the product); queuine:NADP+ oxidoreductase (incorrect as queuine is not the product). Cat No: EXWM-1606. | |
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