Pyrrolidonyl Peptidase
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Pyrrolidonyl Peptidase
Pyroglutamyl-peptidase I (, also known as Pyrrolidonyl peptidase, is an enzyme (a cysteine peptidase) found in bacteria, plants and animals. It can be used to distinguish certain Streptococcal organisms. Other names are ''5-oxoprolyl-peptidase'', ''pyrase'', ''pyrrolidonyl arylamidase'', ''pyroglutamate aminopeptidase'', ''pyroglutamyl aminopeptidase'', ''L-pyroglutamyl peptide hydrolase'', ''pyrrolidone-carboxyl peptidase'', ''pyrrolidone-carboxylate peptidase'', '' pyrrolidonyl peptidase'', ''L-pyrrolidonecarboxylate peptidase'', ''pyroglutamidase'', ''pyrrolidonecarboxylyl peptidase'') is an enzyme. This enzyme catalyses the following chemical reaction : Release of an N-terminal pyroglutamyl group from a polypeptide, the second amino acid generally not being Pro Pro is an abbreviation meaning "professional". Pro, PRO or variants thereof may also refer to: People * Miguel Pro (1891–1927), Mexican priest * Pro Hart (1928–2006), Australian painter * Mlungisi Mdluli ( ...
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Enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life. Metabolic pathways depend upon enzymes to catalyze individual steps. The study of enzymes is called ''enzymology'' and the field of pseudoenzyme analysis recognizes that during evolution, some enzymes have lost the ability to carry out biological catalysis, which is often reflected in their amino acid sequences and unusual 'pseudocatalytic' properties. Enzymes are known to catalyze more than 5,000 biochemical reaction types. Other biocatalysts are catalytic RNA molecules, called ribozymes. Enzymes' specificity comes from their unique three-dimensional structures. Like all catalysts, enzymes increase the reaction ra ...
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