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| Product | Description | |
|---|---|---|
| Tetrahydrobiopterin | Tetrahydrobiopterin, a pteridin derivative, has been found to be a cofactor to form nitric oxide and neurotransmitters serotonin. Synonyms: 5,6,7,8-tetrahydro-2-amino-6-(1,2-dihydroxypropyl)-4(1h)-pteridinon;5,6,7,8-tetrahydro-2-amino-6-(1,2-dihydroxypropyl)-4(1h)-pteridinone;bh4;TETRAHYDRO-L-BIOPTERIN, DIHYDROCHLORIDE;THB, 2HCL;6R-BH4;(6R)-BH4 2HCL;[6R-[6R*(1R*,2S*)]]-2-AMINO-6-(1,2-DIHYDRO. Grades: 98%. CAS No. 17528-72-2. Molecular formula: C9H15N5O3. Mole weight: 241.25. |  |
| Tetrahydrobiopterin | Tetrahydrobiopterin ((Rac)-Sapropterin) is a cofactor of the aromatic amino acid hydroxylases enzymes and also acts as an essential cofactor for all nitric oxide synthase (NOS) isoforms. Uses: Scientific research. Group: Natural products. Alternative Names: (Rac)-Sapropterin. CAS No. 17528-72-2. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg. Product ID: HY-107383. |  |
| Tetrahydrobiopterin (THB) dihydrochloride | Tetrahydrobiopterin (THB) dihydrochloride is an activating Nitric Oxide Synthase (NOS)cofactor used in a variety of applications. The compound is also a known cofactor for the monooxygenases that hydroxylates phenylalanine, tyrosine, and tryptophan. Synthesis of THB has been documented to be the rate limiting step in the metabolism of phenylalanine and the biosynthesis of neurotransmiter amines. In mice, Quinolinic acid (sc-203226) induced convulsions were potentiated with Tetrahydrobiopterin dihydrochloride demonstrating that endogenous NO may be involved in stimulating the NMDA receptors. When hypertensive mice were fed THB, but were not introduced to hydralazine or tetrahydroneopterin, they displayed improved cardiac THB stores, phosphorylated phospholamban levels, and diastolic dysfunction. The compound has also been observed as an essential cofactor in the hydroxylation process in mammalian brains. Applications: An activating nos cofactor. Group: Coenzymes. Synonyms: (6R)-5,6,7,8-Tetrahydro-L-biopterin dihydrochloride. CAS No. 69056-38-8. Purity: ≥98%. Mole weight: 314.17. Appearance: Powder. Form: Solid. (6R)-5,6,7,8-Tetrahydro-L-biopterin dihydrochloride; Tetrahydrobiopterin (THB) dihydrochloride; 69056-38-8. Cat No: COEC-024. |  |
| 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-5,6,7,8-tetrahydro-6-methyl-4(1H)-pteridinone Dihydrochloride | 2-Amino-5,6,7,8-tetrahydro-6-methyl-4(1H)-pteridinone is an analog of tetrahydrobiopterin with cofactor activity for aromatic amino acid hydroxylases. It is also used to study mechanisms of nitric oxide (NO) synthase and free radical induced L-DOPA release from striatal tissue. Group: Biochemicals. Grades: Highly Purified. CAS No. 69113-63-9. Pack Sizes: 100mg, 1g. Molecular Formula: C7H13Cl2N5O, Molecular Weight: 254.12. US Biological Life Sciences. |  Worldwide |
| 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride | 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride is a synthetic reduced pterin cofactor for nitric oxide synthetase, and for phenylalanine, tyrosine, and tryptophan hydroxylases; less active than the natural cofactor, tetrahydrobiopterin (BH4). Applications: A synthetic reduced pterin cofactor. Group: Coenzymes. Synonyms: DMPH4; 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine. CAS No. 945-43-7. Purity: ≥95%. Mole weight: 231.68. Appearance: Powder. Form: Solid. DMPH4; 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine; 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride; 945-43-7. Cat No: COEC-094. | |
| 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. | |
| (6R)-5,6,7,8-Tetrahydro-L-biopterin 2HCl | Tetrahydrobiopterin is a naturally occurring essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the degradation of amino acid phenylalanine and in the biosynthesis of the neurotransmitters serotonin, melatonin, dopamine, norepinephrine , epinephrine, and is a cofactor for the production of nitric oxide by the nitric oxide synthases. Chemically, its structure is that of a reduced pteridine derivative. Group: Biochemicals. Alternative Names: (6R)-5,6,7,8-Tetrahydrobiopterin dihydrochloride; 6R-BH4; Sapropterin; Sapropterin dihydrochloride; BioMarin T 1401, Biopten, Kuvan, SUN 0588; Shiratori SN 0588. Grades: Highly Purified. CAS No. 69056-38-8,17528-72-2. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C?H??N?O?; 2(HCl), Molecular Weight: 314.17. US Biological Life Sciences. | Worldwide |
| (6R)-5,6,7,8-Tetrahydro-L-biopterin dihydrochloride | (6R)-5,6,7,8-Tetrahydro-L-biopterin dihydrochloride. Uses: Designed for use in research and industrial production. Additional or Alternative Names: (6r-(6r*(1r*,2s*)))-chlorid;(6r)-tetrahydrobiopterinhydrochloride;5,6,7,8-tetrahydro-2-amino-6-(1,2-dihydroxypropyl)-4(1h)-pteridinondihydro;sapropterinhydrochloride;sun0588;6R-BH4;(6R)-BH4 2HCL;[6R-[6R*(1R*,2S*)]]-2-AMINO-6-(1,2-DIHYDROXY-PROPYL)-5,6,7,8-TETRAHYDRO-4(1H)-PTERIDINONE DIHYDROCHLORIDE. Product Category: Heterocyclic Organic Compound. CAS No. 69056-38-8. Molecular formula: C9H17Cl2N5O3. Mole weight: 314.17. Product ID: ACM69056388. Alfa Chemistry ISO 9001:2015 Certified. Categories: Sapropterin dihydrochloride. |  |
| 7,8-Dihydro-D-Neopterin | 7,8-Dihydro-D-Neopterin is an intermediate in the biosynthesis of Biopterin (sc-204781). 7,8-Dihydro-D-Neopterin, also known as Dihydroneopterin, is closely related to tetrahydrobiopterin, an important cofactor in humans. Applications: An intermediate in the biosynthesis of tetrahydrobiopterin. Group: Coenzymes. Synonyms: 7,8-Dihydroneopterin; Dihydroneopterin. CAS No. 1218-98-0. Mole weight: 255.2. Appearance: Powder. Form: Solid. 7,8-Dihydroneopterin; Dihydroneopterin; 7,8-Dihydro-D-Neopterin; 1218-98-0. Cat No: COEC-063. | |
| 7,8-Dihydro-L-biopterin | 7,8-Dihydro-L-biopterin is an oxidation product of tetrahydrobiopterin. Uses: Scientific research. Group: Natural products. CAS No. 6779-87-9. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-W008646. | |
| 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. | |
| (D)-(+)-Neopterin | Neopterin, a pyrazino-pyrimidine compound derived from GTP, n is a precursor of tetrahydrobiopterin and can be used as a biochemical marker indicative of cell proliferation. Neopterin is synthesized in response to interferon-γ stimulation, and used as a marker of T helper cell-induced immune activation. Neopterin is also an indicator of oxidative stress, and modulates the effects of reactive oxygen species (ROS). Synonyms: 2-Amino-6-[(1S,2R)-1,2,3-trihydroxypropyl]-4(3H)-pteridinone; Neopterin; 2-Amino-4-hydroxy-6-(1,2,3-trihydroxypropyl)pteridine; 2-Amino-6-((1S,2R)-1,2,3-trihydroxypropyl)-4(8H)-pteridone; 6-D-erythro-Neopterin; D-(+)-Neopterin; D-erythro-Neopterin. Grades: ≥98% by HPLC. CAS No. 2009-64-5. Molecular formula: C9H11N5O4. Mole weight: 253.21. | |
| 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. | |
| L-Biopterin | L-Biopterin is an important cofactor in the production of many essential neurotransmitters, such as dopamine, seratonin and epinephrine, and plays an important role in the production of nitric oxide in the body. It is produced as an oxidation product by the melanogenesis regulating cofactor (6R)5,6,7,8 tetrahydrobiopterin (6-BH4). L-Biopterin has been shown to be cytotoxic to melanocytes in vitro, and may be a useful noninvasive biomarker. Applications: A cofactor in the production of many neurotransmitters and nitric oxide. Group: Coenzymes. Synonyms: 6-Biopterin; L-Erythro-Biopterin. CAS No. 22150-76-1. Purity: ≥98%. Mole weight: 237.22. Appearance: Powder. Form: Solid. 6-Biopterin; L-Erythro-Biopterin; L-Biopterin; 22150-76-1. Cat No: COEC-068. | |
| L-Biopterin | L-Biopterin is an oxidation product from the melanogenesis regulating cofactor (6R)5,6,7,8 tetrahydrobiopterin (6-BH4). It is an important cofactor in the production of many essential neurotransmitters, such as dopamine, seratonin and epinephrine, and plays an important role in the production of nitric oxide in the body. It has been shown to be cytotoxic to melanocytes in vitro, and may be a useful noninvasive biomarker. Synonyms: L-Biopterin; NSC 339699; NSC-339699; NSC339699; AR 1D8544; AR-1D8544; AR1D8544; LS126316; LS-126316; LS 126316; 2-Amino-6-[(1R,2S)-1,2-dihydroxypropyl]-4(1H)-pteridinone; (-)-Biopterin; 6-Biopterin; Biopterin; L-erythro-Biopterin; NSC 339699; Pterin H B2; (1'R,2'S)-Biopterin; L-erythro-6-(1,2-Dihydroxypropyl)pterin. Grades: >95%. CAS No. 22150-76-1. Molecular formula: C9H11N5O3. Mole weight: 273.22. | |
| L-Sepiapterin | L-Sepiapterin is a key intermediate in the pterin salvage pathway of tetrahydrobiopterin biosynthesis. L-Sepiapterin is an inhibitor of GCH-I. Applications: An intermediate in the pterin salvage pathway. Group: Coenzymes. Synonyms: 2-Amino-6-(S)-lactoyl-7,8-dihydro-4(3H)-pteridinone. CAS No. 17094-01-8. Purity: ≥98%. Mole weight: 237.21. Appearance: Powder. Form: Solid. 2-Amino-6-(S)-lactoyl-7,8-dihydro-4(3H)-pteridinone; L-Sepiapterin; 17094-01-8. Cat No: COEC-065. | |
| (+)-Neopterin | (+)-Neopterin is a precursor of tetrahydrobiopterin and can be used as a biochemical marker indicative of cell proliferation. Elevated levels of (+)-neopterin are correlated to immune system activation, malignant disease, allograft rejection, and viral infections. Additionally, (+)-neopterin serves as a cofactor for pterin in biological systems. Applications: A biochemical indicator for cellular proliferation. Group: Coenzymes. Synonyms: D-erythro-Neopterin. CAS No. 2009-64-5. Purity: ≥98%. Mole weight: 253.22. Appearance: Powder. Form: Solid. D-erythro-Neopterin; (+)-Neopterin; 2009-64-5. Cat No: COEC-061. | |
| Nitric Oxide Synthase, Inducible from mouse, Recombinant | Nitric oxide synthases (NOSs) are a family of enzymes catalyzing the production of nitric oxide (NO) from L-arginine. NO is an important cellular signaling molecule. It helps modulate vascular tone, insulin secretion, airway tone, and peristalsis, and is involved in angiogenesis and neural development. It may function as a retrograde neurotransmitter. Nitric oxide is mediated in mammals by the calcium-calmodulin controlled isoenzymes eNOS (endothelial NOS) and nNOS (neuronal NOS). The inducible isoform, iNOS, is involved in immune response, binds calmodulin at physiologically relevant concentrations, and produces NO as an immune defense mechanism, as NO is a free ...DPH); Inducible Nitric Oxide Synthase; NOS II; iNOS; macNOS; EC 1.14.13.39; NOSs. Enzyme Commission Number: EC 1.14.13.39. CAS No. 125978-95-2. NOSs. Mole weight: mol wt 130 kDa (homodimer); mol wt 130 kDa (subunit, homodimer). Storage: -70°C. Form: buffered aqueous solution; Solution in 50 mM HEPES, pH 7.4, with 10% glycerol, 8 μM tetrahydrobiopterin. Source: E. coli. Species: Mouse. nitric oxide synthetase; endothelium-derived relaxation factor-forming enzyme; endothelium-derived relaxing factor synthase; NO synthase; NADPH-diaphorase; nitric-oxide synthase (NADPH); Inducible Nitric Oxide Synthase; NOS II; iNOS; macNOS; EC 1.14.13.39; NOSs. Cat No: NATE-0489. | |
| nitric-oxide synthase (NADPH) | Binds FAD, FMN, heme (iron protoporphyrin IX) and tetrahydrobiopterin. This eukaryotic enzyme, which is found in plants and animals, consists of oxygenase and reductase domains that are linked via a regulatory calmodulin-binding domain. Upon calcium-induced calmodulin binding, the reductase and oxygenase domains form a complex, allowing electrons to flow from NADPH via FAD and FMN to the active center. May produce superoxide under certain conditions. cf. EC 1.14.13.165, nitric-oxide synthase [NAD(P)H dependent]. Group: Enzymes. Synonyms: nitric oxide synthetase; endothelium-derived relaxation factor-forming enzyme; endothelium-derived relaxing factor synthase; NO synthase; NADPH-diaphorase. Enzyme Commission Number: EC 1.14.13.39. CAS No. 125978-95-2. NOSs. 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-0846; nitric-oxide synthase (NADPH); EC 1.14.13.39; 125978-95-2; nitric oxide synthetase; endothelium-derived relaxation factor-forming enzyme; endothelium-derived relaxing factor synthase; NO synthase; NADPH-diaphorase. Cat No: EXWM-0846. | |
| nitric-oxide synthase [NAD(P)H] | Binds heme (iron protoporphyrin IX) and tetrahydrobiopterin. Most of the bacterial and archaeal enzymes consist of only an oxidase domain and function together with bacterial ferredoxins. The enzyme from the Δ-proteobacterium Sorangium cellulosum also includes a reductase domain that binds FAD, FMN and a [2Fe-2S] cluster. The similar enzymes from plants and animals use only NADPH as acceptor (cf. EC 1.14.13.39). Group: Enzymes. Synonyms: nitric oxide synthetase; NO synthase. Enzyme Commission Number: EC 1.14.13.165. 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-0764; nitric-oxide synthase [NAD(P)H]; EC 1.14.13.165; nitric oxide synthetase; NO synthase. Cat No: EXWM-0764. | |
| phenylalanine 4-monooxygenase | The active centre contains mononuclear iron(II). The reaction involves an arene oxide that rearranges to give the phenolic hydroxy group. This results in the hydrogen at C-4 migrating to C-3 and in part being retained. This process is known as the NIH-shift. The 4a-hydroxytetrahydrobiopterin formed can dehydrate to 6,7-dihydrobiopterin, both spontaneously and by the action of EC 4.2.1.96, 4a-hydroxytetrahydrobiopterin dehydratase. The 6,7-dihydrobiopterin can be enzymically reduced back to tetrahydrobiopterin, by EC 1.5.1.34, 6,7-dihydropteridine reductase, or slowly rearranges into the more stable compound 7,8-dihydrobiopterin. Group: Enzymes. Synonyms: phenylalaninase; phenylalanine 4-hydroxylase; phenylalanine hydroxylase. Enzyme Commission Number: EC 1.14.16.1. CAS No. 9029-73-6. 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-0953; phenylalanine 4-monooxygenase; EC 1.14.16.1; 9029-73-6; phenylalaninase; phenylalanine 4-hydroxylase; phenylalanine hydroxylase. Cat No: EXWM-0953. | |
| Sapropterin dihydrochloride | Sapropterin is a naturally occurring cofactor for phenylalanine hydroxylase. Under the trade name Kuvan, sapropterin dihydrochloride is approved for the treatment of hyperphenylalaninaemia and tetrahydrobiopterin deficiency. Synonyms: BioMarin T 1401; Biopten; Kuvan; SUN 0588; Shiratori SN 0588; (6R)-5,6,7,8-Tetrahydrobiopterin Dihydrochloride; Phenoptin; (R)-2-Amino-6-((1R,2S)-1,2-dihydroxypropyl)-5,6,7,8-tetrahydropteridin-4(3H)-one dihydrochloride; (6R)-Tetrahydrobiopterin hydrochloride; (6R)-5,6,7,8-Tetrahydro-L-Biopterin Dihydrochloride. Grades: >98%. CAS No. 69056-38-8. Molecular formula: C9H17Cl2N5O3. Mole weight: 314.17. | |
| Sapropterin Dihydrochloride | Tetrahydrobiopterin (BH4, THB), also known as sapropterin, is a naturally occurring essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the degradation of amino acid phenylalanine and in the biosynthesis of the neurotransmitters serotonin (5-hydroxytryptamine, 5-HT), melatonin, dopamine, norepinephrine (noradrenaline), epinephrine (adrenaline), and is a cofactor for the production of nitric oxide (NO) by the nitric oxide synthases.[1] Chemically, its structure is that of a reduced pteridine derivative. Group: Biochemicals. Alternative Names: (6R)-5,6,7,8-Tetrahydrobiopterin dihydrochloride; 6R-BH4. CAS No. 17528-72-2. Pack Sizes: 50mg, 100mg, 250mg. US Biological Life Sciences. | Worldwide |
| sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming) | This enzyme catalyses the final step in the de novo synthesis of tetrahydrobiopterin from GTP. The enzyme, which is found in higher animals and some fungi and bacteria, produces the erythro form of tetrahydrobiopterin. cf. EC 1.1.1.325, sepiapterin reductase (L-threo-7,8-dihydrobiopterin forming). Group: Enzymes. Synonyms: SR. Enzyme Commission Number: EC 1.1.1.153. CAS No. 9059-48-7. 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-0058; sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming); EC 1.1.1.153; 9059-48-7; SR. Cat No: EXWM-0058. | |
| sepiapterin reductase (L-threo-7,8-dihydrobiopterin forming) | This enzyme, isolated from the bacterium Chlorobium tepidum, catalyses the final step in the de novo synthesis of tetrahydrobiopterin from GTP. cf. EC 1.1.1.153, sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming). Group: Enzymes. Enzyme Commission Number: EC 1.1.1.325. CAS No. 9059-48-7. 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-0238; sepiapterin reductase (L-threo-7,8-dihydrobiopterin forming); EC 1.1.1.325; 9059-48-7. Cat No: EXWM-0238. | |
| tryptophan 5-monooxygenase | The active centre contains mononuclear iron(II). The enzyme is activated by phosphorylation, catalysed by a Ca2+-activated protein kinase. The 4a-hydroxytetrahydrobiopterin formed can dehydrate to 6,7-dihydrobiopterin, both spontaneously and by the action of EC 4.2.1.96, 4a-hydroxytetrahydrobiopterin dehydratase. The 6,7-dihydrobiopterin can be enzymically reduced back to tetrahydrobiopterin, by EC 1.5.1.34 (6,7-dihydropteridine reductase), or slowly rearranges into the more stable compound 7,8-dihydrobiopterin. Group: Enzymes. Synonyms: L-tryptophan hydroxylase; indoleacetic acid-5-hydroxylase; tryptophan 5-hydroxylase; tryptophan hydroxylase. Enzyme Commission Number: EC 1.14.16.4. CAS No. 9037-21-2. 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-0956; tryptophan 5-monooxygenase; EC 1.14.16.4; 9037-21-2; L-tryptophan hydroxylase; indoleacetic acid-5-hydroxylase; tryptophan 5-hydroxylase; tryptophan hydroxylase. Cat No: EXWM-0956. | |
| tyrosine 3-monooxygenase | The active centre contains mononuclear iron(II). The enzyme is activated by phosphorylation, catalysed by EC 2.7.11.27, [acetyl-CoA carboxylase] kinase. The 4a-hydroxytetrahydrobiopterin formed can dehydrate to 6,7-dihydrobiopterin, both spontaneously and by the action of EC 4.2.1.96, 4a-hydroxytetrahydrobiopterin dehydratase. The 6,7-dihydrobiopterin can be enzymically reduced back to tetrahydrobiopterin, by EC 1.5.1.34 (6,7-dihydropteridine reductase), or slowly rearranges into the more stable compound 7,8-dihydrobiopterin. Group: Enzymes. Synonyms: L-tyrosine hydroxylase; tyrosine 3-hydroxylase; tyrosine hydroxylase. Enzyme Commission Number: EC 1.14.16.2. CAS No. 9036-22-0. 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-0954; tyrosine 3-monooxygenase; EC 1.14.16.2; 9036-22-0; L-tyrosine hydroxylase; tyrosine 3-hydroxylase; tyrosine hydroxylase. Cat No: EXWM-0954. | |
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