acyl group enzyme

The hydroxyl group of carboxylic acid like that of alcohols are easily replaced by chlorine atom on heating with PCl 5 , PCl 3 or SOCl 2 . ..

It is the step in which the amino acid AMP-enzyme complex joins with the amino acid binding site of its specific tRNA, where its COOH group bonds with the OH group of the terminal base triplet CCA. The reaction is catalyzed by the same enzyme, aminoacyl tRNA ..

Aldehydes, ketones, carboxylic acids and their functional derivatives (aryl halides, acid anhydrides, esters and amides) contain a carbonyl group and are highly polar molecules. They boil at higher temperature than hydrocarbon and weakly polar compounds like ethers, of comparable mo..

This chapter contains oxygen compounds in which oxygen is bonded to a carbon atom through a double bond. The functional unit >C = O, present in these compounds is called carbonyl group. We limit our study now to compounds having an acyl group (R - C = O) is bonded ..

>RNA cannot undergo replication and have to be synthesised only from DNA. Enzymes are basically proteins that function as biological catalysts. Enzymes carry on their catalytic action by lowering the activation energy required for a reaction to proceed. Sometimes an enzymeh..

Esters react with alcohols in the presence of an acid catalyst to undergo exchange of alcohol resides i.e., alkoxy parts. The equilibrium mixture consists of the reactants and a new ester and a new alcohol. The reaction involves nucleophilic acyl substitution of the alkoxy group..

Amino acids are synthesised by two main processes: 1) Reductive animation In this process, ammonia reacts with a -ketoglutaric acid to form glutamic aci..

These are bacteria which are unable to manufacture their own organic food and hence are dependent on external source. These bacteria can be distinguished into three groups as follows: Saprophytic Bacteria: These bacteria obtain their nutritional requirements from dead organic matter. They..

The tRNA carries a specific amino acid from the amino acid pool to the mRNA on the ribosomes to form a polypeptide, hence its name. The tRNAs form about 15% of the total RNA of a cell. Its molecule is the smallest and has the form of a cloverleaf. It has four regions: Carrier End: This is the 3 ..

. Copper is a cofactor of the enzyme cytochrome oxidase. Minerals take part in several biological processes. Iron serves as a prosthetic group for haemoglobin and is essential for the functioning of chlorophyll. Calcium plays a very important role in the clotting of blood. Some ..