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| Product | Description | |
|---|---|---|
| coenzyme-B sulfoethylthiotransferase | This enzyme catalyses the final step in methanogenesis, the biological production of methane. This important anaerobic process is carried out only by methanogenic archaea. The enzyme can also function in reverse, for anaerobic oxidation of methane.The enzyme requires the hydroporphinoid nickel complex coenzyme F430. Highly specific for coenzyme B with a heptanoyl chain; ethyl CoM and difluoromethyl CoM are poor substrates. The sulfide sulfur can be replaced by selenium but not by oxygen. Group: Enzymes. Synonyms: methyl-CoM reductase; methyl coenzyme M reductase. Enzyme Commission Number: EC 2.8.4.1. 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-3427; coenzyme-B sulfoethylthiotransferase; EC 2.8.4.1; methyl-CoM reductase; methyl coenzyme M reductase. Cat No: EXWM-3427. |  |
| CoB-CoM heterodisulfide reductase | This enzyme is found in methanogenic archaea, particularly Methanosarcina species, and regenerates coenzyme M and coenzyme B after the action of EC 2.8.4.1, coenzyme-B sulfoethylthiotransferase. Contains (per heterodimeric unit) two distinct b-type hemes and two [4Fe-4S] clusters. Highly specific for both coenzyme M and coenzyme B. Reacts with various phenazine derivatives, including 2-hydroxyphenazine and 2-bromophenazine. Group: Enzymes. Synonyms: heterodisulfide reductase; soluble heterodisulfide reductase. Enzyme Commission Number: EC 1.8.98.1. 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-1682; CoB-CoM heterodisulfide reductase; EC 1.8.98.1; heterodisulfide reductase; soluble heterodisulfide reductase. Cat No: EXWM-1682. | |
| [methyl-Co(III) methanol-specific corrinoid protein]:coenzyme M methyltransferase | The enzyme, which is involved in methanogenesis from methanol, catalyses the transfer of a methyl group from a corrinoid protein (see EC 2.1.1.90, methanol-corrinoid protein Co-methyltransferase), where it is bound to the cobalt cofactor, to coenzyme M, forming the substrate for EC 2.8.4.1, coenzyme-B sulfoethylthiotransferase, the enzyme that catalyses the final step in methanogenesis. Free methylcob(I)alamin can substitute for the corrinoid protein in vitro. Group: Enzymes. Synonyms: methyltransferase 2 (ambiguous); mtaA (gene name). Enzyme Commission Number: EC 2.1.1.246. 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-1849; [methyl-Co(III) methanol-specific corrinoid protein]:coenzyme M methyltransferase; EC 2.1.1.246; methyltransferase 2 (ambiguous); mtaA (gene name). Cat No: EXWM-1849. | |
| [methyl-Co(III) methylamine-specific corrinoid protein]:coenzyme M methyltransferase | Contains zinc. The enzyme, which is involved in methanogenesis from mono-, di-, and trimethylamine, catalyses the transfer of a methyl group bound to the cobalt cofactor of several corrinoid proteins (mono-, di-, and trimethylamine-specific corrinoid proteins, cf. EC 2.1.1.248, methylamine-corrinoid protein Co-methyltransferase, EC 2.1.1.249, dimethylamine-corrinoid protein Co-methyltransferase, and EC 2.1.1.250, trimethylamine-corrinoid protein Co-methyltransferase) to coenzyme M, forming the substrate for EC 2.8.4.1, coenzyme-B sulfoethylthiotransferase, the enzyme that catalyses the final step in methanogenesis. Group: Enzymes. Synonyms: methyltransferase 2 (ambiguous); MT2 (ambiguous); MT2-A; mtbA (gene name). Enzyme Commission Number: EC 2.1.1.247. 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-1850; [methyl-Co(III) methylamine-specific corrinoid protein]:coenzyme M methyltransferase; EC 2.1.1.247; methyltransferase 2 (ambiguous); MT2 (ambiguous); MT2-A; mtbA (gene name). Cat No: EXWM-1850. | |
| [methyl-Co(III) tetramethylammonium-specific corrinoid protein]:coenzyme M methyltransferase | The enzyme, which is involved in methanogenesis from tetramethylammonium, catalyses the transfer of a methyl group from a corrinoid protein (see EC 2.1.1.252, tetramethylammonium-corrinoid protein Co-methyltransferase), where it is bound to the cobalt cofactor, to coenzyme M, forming the substrate for EC 2.8.4.1, coenzyme-B sulfoethylthiotransferase, the enzyme that catalyses the final step in methanogenesis. Group: Enzymes. Synonyms: methyltransferase 2 (ambiguous); mtqA (gene name). Enzyme Commission Number: EC 2.1.1.253. 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-1857; [methyl-Co(III) tetramethylammonium-specific corrinoid protein]:coenzyme M methyltransferase; EC 2.1.1.253; methyltransferase 2 (ambiguous); mtqA (gene name). Cat No: EXWM-1857. | |
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