Enzyme Commission Number
EC 2.1.1.308
Product Overview
High-quality enzyme products.
Well-established quality management system.
Reaction
2 S-adenosyl-L-methionine + cytidine 5′-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} + reduced acceptor = S-adenosyl-L-homocysteine + 5′-deoxyadenosine + L-methionine + cytidine 5′-{[hydroxy(2-hydroxypropyl)phosphonoyl]phosphate} + oxidized acceptor
Systematic Name
S-adenosyl-L-methionine:cytidine 5′-{[hydroxy(2-hydroxyethyl)phosphonoyl]phosphate} C-methyltransferase
Function
Requires cobalamin. The enzyme, isolated from the bacterium Streptomyces wedmorensis, is involved in fosfomycin biosynthesis. It is a radical S-adenosyl-L-methionine (SAM) enzyme that contains a [4Fe-4S] center and a methylcob(III)alamin cofactor. The enzyme uses two molecues of SAM for the reaction. One molecule forms a 5′-deoxyadenosyl radical, while the other is used to methylate the cobalamin cofactor. The 5′-deoxyadenosyl radical abstracts a hydrogen from the C2 position of cytidine 5′-{[(2-hydroxyethyl)phosphonoyl]phosphate} forming a free radical that reacts with the methyl group on methylcob(III)alamin at the opposite side from SAM and the [4Fe-4S] cluster to produce a racemic mix of methylated products and cob(II)alamin. Both the [4Fe-4S] cluster and the cob(II)alamin need to be reduced by an unknown factor(s) before the enzyme could catalyse another cycle.
Other name
Fom3; S-adenosyl-L-methionine:methylcob(III)alamin:2-hydroxyethylphosphonate methyltransferase (incorrect); 2-hydroxyethylphosphonate methyltransferase (incorrect)
Production Methods
Fermentation
Package
on customer request
Applications
Research Use
Storage
Should be stored in a dry and cool place, avoiding high temperature.
Appearance / Form
powder or liquid
Odor
Normal microbial fermentation odour.
WARNINGS
Keep sealed after use every time to avoid microbial infections and inactivation of enzymes until its finish.
Description
Microbial enzymes have been used in a large number of fields, such as chemical, agricultural and biopharmaceutical industries. Our enzyme production services are based on bacteria, fungi, and yeast, from strain selection, optimization, and process development to scale-up production.
