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The enzyme Pimelyl-[acyl-carrier protein] methyl ester esterase (EC 3.1.1.85, BioH; systematic name pimelyl-[acyl-carrier protein] methyl ester hydrolase ...
The enzyme protein-glutamate methylesterase (EC 3.1.1.61) catalyzes the reaction . protein L-glutamate O 5-methyl ester + H 2 O protein L-glutamate + methanol. This enzyme is a demethylase, and more specifically it belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds.
Acetoacetic esters are used for the acetoacetylation reaction, which is widely used in the production of arylide yellows and diarylide dyes. [3] Although the esters can be used in this reaction, diketene also reacts with alcohols and amines to the corresponding acetoacetic acid derivatives in a process called acetoacetylation.
Transesterification is the process of exchanging the organic functional group R″ of an ester with the organic group R' of an alcohol. These reactions are often catalyzed by the addition of an acid or base catalyst. [1] Strong acids catalyze the reaction by donating a proton to the carbonyl group, thus making it a more potent electrophile.
The enzyme protein phosphatase methylesterase-1 (EC 3.1.1.89, PME-1, PPME1; systematic name (phosphatase 2A protein)-leucine ester acylhydrolase [1] [2] catalyses the reaction [phosphatase 2A protein]-leucine methyl ester + H 2 O ⇌ {\displaystyle \rightleftharpoons } [phosphatase 2A protein]-leucine + methanol
Methylation is catalysed by CheR, an S-adenosylmethionine-dependent methyltransferase, [1] which reversibly methylates specific glutamate residues within a coiled coil region, to form gamma-glutamyl methyl ester residues. [1] [2] The structure of the Salmonella typhimurium chemotaxis receptor methyltransferase CheR, bound to S ...
An ester of carboxylic acid.R stands for any group (organic or inorganic) and R′ stands for organyl group.. In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (−R).
Protein methylation is a type of post-translational modification featuring the addition of methyl groups to proteins.It can occur on the nitrogen-containing side-chains of arginine and lysine, [1] [2] but also at the amino- and carboxy-termini of a number of different proteins.