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Pyridoxal Phosphatase
The enzyme pyridoxal phosphatase (EC 3.1.3.74) catalysis, catalyzes the reaction :pyridoxal 5′-phosphate + H2O \rightleftharpoons pyridoxal + phosphate This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric ester, monoester bonds. The List of enzymes, systematic name is pyridoxal-5′-phosphate phosphohydrolase. Other names in common use include vitamine B6 (pyridoxine) phosphatase, PLP phosphatase, vitamin B6-phosphate phosphatase, and PNP phosphatase. This enzyme participates in vitamin B6 metabolism. Structural studies As of late 2007, 6 tertiary structure, structures have been solved for this class of enzymes, with Protein Data Bank, PDB accession codes , , , , , and . References * EC 3.1.3 Enzymes of known structure {{3.1-enzyme-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalysis
Catalysis () is the increase in rate of a chemical reaction due to an added substance known as a catalyst (). Catalysts are not consumed by the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recycles quickly, very small amounts of catalyst often suffice; mixing, surface area, and temperature are important factors in reaction rate. Catalysts generally react with one or more reactants to form intermediates that subsequently give the final reaction product, in the process of regenerating the catalyst. The rate increase occurs because the catalyst allows the reaction to occur by an alternative mechanism which may be much faster than the noncatalyzed mechanism. However the noncatalyzed mechanism does remain possible, so that the total rate (catalyzed plus noncatalyzed) can only increase in the presence of the catalyst and never decrease. Catalysis may be classified as either homogeneous, whose components are dispersed in the same phase (usual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
