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This enzyme is involved in ubiquinone biosynthesis. Ubiquinones from different organisms have a different number of prenyl units (for example, ubiquinone-6 in Saccharomyces, ubiquinone-9 in rat and ubiquinone-10 in human), and thus the natural substrate for the enzymes from different organisms has a different number of prenyl units. However, the enzyme usually shows a low degree of specificity regarding the number of prenyl units. For example, when the COQ5 gene from Saccharomyces cerevisiae is introduced into Escherichia coli, it complements the respiratory deficiency of an ubiE mutant. The bifunctional enzyme from Escherichia coli also catalyses the methylation of demethylmenaquinol-8 (this activity is classified as EC 2.1.1.163). Group: Enzymes. Synonyms: ubiE (gene name, ambiguous). Enzyme Commission Number: EC 2.1.1.201. 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-1802; 2-methoxy-6-polyprenyl-1,4-benzoquinol methylase; EC 2.1.1.201; ubiE (gene name, ambiguous). Cat No: EXWM-1802.
2-polyprenyl-6-hydroxyphenol methylase
UbiG catalyses both methylation steps in ubiquinone biosynthesis in Escherichia coli. The second methylation is classified as EC 2.1.1.64 (3-demethylubiquinol 3-O-methyltransferase). In eukaryotes Coq3 catalyses the two methylation steps in ubiquinone biosynthesis. However, while the second methylation is common to both enzymes, the first methylation by Coq3 occurs at a different position within the pathway, and thus involves a different substrate and is classified as EC 2.1.1.114 (polyprenyldihydroxybenzoate methyltransferase). The substrate of the eukaryotic enzyme (3,4-dihydroxy-5-all-trans-polyprenylbenzoate) differs by an additional carboxylate moiety. Group: Enzymes. Synonyms: ubiG (gene name, ambiguous); ubiG methyltransferase (ambiguous); 2-octaprenyl-6-hydroxyphenol methylase. Enzyme Commission Number: EC 2.1.1.222. 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-1825; 2-polyprenyl-6-hydroxyphenol methylase; EC 2.1.1.222; ubiG (gene name, ambiguous); ubiG methyltransferase (ambiguous); 2-octaprenyl-6-hydroxyphenol methylase. Cat No: EXWM-1825.
3-demethylubiquinol 3-O-methyltransferase
This enzyme is involved in ubiquinone biosynthesis. Ubiquinones from different organisms have a different number of prenyl units (for example, ubiquinone-6 in Saccharomyces, ubiquinone-9 in rat and ubiquinone-10 in human), and thus the natural substrate for the enzymes from different organisms has a different number of prenyl units. However, the enzyme usually shows a low degree of specificity regarding the number of prenyl units. For example, the human COQ3 enzyme can restore biosynthesis of ubiquinone-6 in coq3 deletion mutants of yeast.The enzymes from yeast, Escherichia coli and rat also catalyse the methylation of 3,4-dihydroxy-5-all-trans-polyprenylbenzoate (a reac.COQ3 (gene name); Coq3 O-methyltransferase; ubiG (gene name, ambiguous). Enzyme Commission Number: EC 2.1.1.64. CAS No. 63774-48-1. 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-1966; 3-demethylubiquinol 3-O-methyltransferase; EC 2.1.1.64; 63774-48-1; 5-demethylubiquinone-9 methyltransferase; OMHMB-methyltransferase; 2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone methyltransferase; S-adenosyl-L-methionine:2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone-O-methyltransferase; COQ3 (gene name); Coq3 O-methyltransferase; ubiG (gene name, ambiguous). Cat No: EXWM-1966.
4-hydroxy-3-polyprenylbenzoate decarboxylase
The enzyme catalyses a step in prokaryotic ubiquinone biosynthesis, as well as in plastoquinone biosynthesis in cyanobacteria. The enzyme can accept substrates with different polyprenyl tail lengths in vitro, but uses a specific length in vivo, which is determined by the polyprenyl diphosphate synthase that exists in the specific organism. It requires a prenylated flavin cofactor that is produced by EC 2.5.1.129, flavin prenyltransferase. Group: Enzymes. Synonyms: ubiD (gene name); 4-hydroxy-3-solanesylbenzoate decarboxylase; 3-octaprenyl-4-hydroxybenzoate decarboxylase. Enzyme Commission Number: EC 4.1.1.98. 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-4848; 4-hydroxy-3-polyprenylbenzoate decarboxylase; EC 4.1.1.98; ubiD (gene name); 4-hydroxy-3-solanesylbenzoate decarboxylase; 3-octaprenyl-4-hydroxybenzoate decarboxylase. Cat No: EXWM-4848.
4-hydroxybenzoate polyprenyltransferase
This enzyme, involved in the biosynthesis of ubiquinone, attaches a polyprenyl side chain to a 4-hydroxybenzoate ring, producing the first ubiquinone intermediate that is membrane bound. The number of isoprenoid subunits in the side chain varies in different species. The enzyme does not have any specificity concerning the length of the polyprenyl tail, and accepts tails of various lengths with similar efficiency. Group: Enzymes. Synonyms: nonaprenyl-4-hydroxybenzoate transferase; 4-hydroxybenzoate transferase; p-hydroxybenzoate dimethylallyltransferase; p-hydroxybenzoate polyprenyltransferase; p-hydroxybenzoic acid-polyprenyl transferase; p-hydroxybenzoic-polyprenyl transferase; 4-hydroxybenzoate nonaprenyltransferase. Enzyme Commission Number: EC 2.5.1.39. CAS No. 9030-77-7. 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-2775; 4-hydroxybenzoate polyprenyltransferase; EC 2.5.1.39; 9030-77-7; nonaprenyl-4-hydroxybenzoate transferase; 4-hydroxybenzoate transferase; p-hydroxybenzoate dimethylallyltransferase; p-hydroxybenzoate polyprenyltransferase; p-hydroxybenzoic acid-polyprenyl transferase; p-hydroxybenzoic-polyprenyl transferase; 4-hydroxybenzoate nonaprenyltransferase. Cat No: EXWM-2775.
Geranylgeranyl diphosphate is preferred over farnesyl diphosphate as allylic substrate. The plant Arabidopsis thaliana has two different enzymes that catalyse this reaction. SPS1 contributes to the biosynthesis of the ubiquinone side-chain while SPS2 supplies the precursor of the plastoquinone side-chains. Group: Enzymes. Synonyms: nonaprenyl diphosphate synthase (ambiguous); solanesyl diphosphate synthase (ambiguous); At-SPS2; At-SPS1; SPS1; SPS2. Enzyme Commission Number: EC 2.5.1.85. 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-2823; all-trans-nonaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific]; EC 2.5.1.85; nonaprenyl diphosphate synthase (ambiguous); solanesyl diphosphate synthase (ambiguous); At-SPS2; At-SPS1; SPS1; SPS2. Cat No: EXWM-2823.
chorismate lyase
This enzyme catalyses the first step in the biosynthesis of ubiquinone in Escherichia coli and other Gram-negative bacteria. The yeast Saccharomyces cerevisiae can synthesize ubiquinone from either chorismate or tyrosine. Group: Enzymes. Synonyms: CL; CPL; UbiC. Enzyme Commission Number: EC 4.1.3.40. CAS No. 157482-18-3. 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-4917; chorismate lyase; EC 4.1.3.40; 157482-18-3; CL; CPL; UbiC. Cat No: EXWM-4917.
demethylmenaquinone methyltransferase
The enzyme catalyses the last step in menaquinone biosynthesis. It is able to accept substrates with varying polyprenyl side chain length (the chain length is determined by polyprenyl diphosphate synthase). The enzyme from Escherichia coli also catalyses the conversion of 2-methoxy-6-octaprenyl-1,4-benzoquinone to 5-methoxy-2-methyl-3-octaprenyl-1,4-benzoquinone during the biosynthesis of ubiquinone. The enzyme probably acts on menaquinol rather than menaquinone. Group: Enzymes. Synonyms: S-adenosyl-L-methione-DMK methyltransferase; demethylmenaquinone C-methylase; 2-heptaprenyl-1,4-naphthoquinone methyltransferase; 2-demethylmenaquinone methyltransferase; S-adenosyl-L-methione:2-demethylmenaquinone methyltransferase. Enzyme Commission Number: EC 2.1.1.163. 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-1760; demethylmenaquinone methyltransferase; EC 2.1.1.163; S-adenosyl-L-methione-DMK methyltransferase; demethylmenaquinone C-methylase; 2-heptaprenyl-1,4-naphthoquinone methyltransferase; 2-demethylmenaquinone methyltransferase; S-adenosyl-L-methione:2-demethylmenaquinone methyltransferase. Cat No: EXWM-1760.
dihydroorotate dehydrogenase (quinone)
This Class 2 dihydroorotate dehydrogenase enzyme contains FMN. The enzyme is found in eukaryotes in the mitochondrial membrane, in cyanobacteria, and in some Gram-negative and Gram-positive bacteria associated with the cytoplasmic membrane. The reaction is the only redox reaction in the de-novo biosynthesis of pyrimidine nucleotides. The best quinone electron acceptors for the enzyme from bovine liver are ubiquinone-6 and ubiquinone-7, although simple quinones, such as benzoquinone, can also act as acceptor at lower rates. Methyl-, ethyl-, tert-butyl and benzyl (S)-dihydroorotates are also substrates, but methyl esters of (S)-1-methyl and (S)-3-methyl and (S)-1,3-dimethyldihydroorotates are not. Class 1 dihydroorotate dehydrogenases use either fumarate (EC 1.3.98.1), NAD+ (EC 1.3.1.14) or NADP+ (EC 1.3.1.15) as electron acceptor. Group: Enzymes. Synonyms: dihydroorot. Enzyme Commission Number: EC 1.3.5.2. CAS No. 59088-23-2. 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-1386; dihydroorotate dehydrogenase (quinone); EC 1.3.5.2; 59088-23-2; dihydroorotate:ubiquinone oxidoreductase; (S)-dihydroorotate:(acceptor) oxidoreductase; (S)-dihydroorotate:acceptor oxidoreductase; DHOdehase (ambiguous); DHOD (ambiguous); DHODase (ambiguous); DHODH. Cat No: EXWM-1386.
polyprenyldihydroxybenzoate methyltransferase
This enzyme is involved in ubiquinone biosynthesis. Ubiquinones from different organisms have a different number of prenyl units (for example, ubiquinone-6 in Saccharomyces, ubiquinone-9 in rat and ubiquinone-10 in human), and thus the natural substrate for the enzymes from different organisms has a different number of prenyl units. However, the enzyme usually shows a low degree of specificity regarding the number of prenyl units. For example, the human COQ3 enzyme can restore biosynthesis of ubiquinone-6 in coq3 deletion mutants of yeast. The enzymes from yeast and rat also catalyse the methylation of 3-demethylubiquinol-6 and 3-demethylubiquinol-9, respectively (this activity is classified as EC 2.1.1.64, 3-demethylubiquinol 3-O-methyltransferase). Group: Enzymes. Synonyms: 3,4-dihydroxy-5-hexaprenylbenzoate methyltransferase; dihydroxyhexaprenylbenzoate methyltransferase; C. Enzyme Commission Number: EC 2.1.1.114. CAS No. 139569-31-6. 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-1713; polyprenyldihydroxybenzoate methyltransferase; EC 2.1.1.114; 139569-31-6; 3,4-dihydroxy-5-hexaprenylbenzoate methyltransferase; dihydroxyhexaprenylbenzoate methyltransferase; COQ3 (gene name); Coq3 O-methyltransferase; DHHB O-methyltransferase. Cat No: EXWM-1713.
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