pyrophosphatase

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pyrophosphatase

[‚pī·rō′fä·sfə‚tās]
(biochemistry)
An enzyme catalyzing hydrolysis of esters containing two or more molecules of phosphoric acid to form a simpler phosphate ester.
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ORFs for the 2,3-diacylglucosamine-phosphate biosynthesis UDP-2 and 3-diacylglucosamine diphosphatase (RWLH04621) were also identified.
Pioneering studies identified inositol glycans generated from Trypanosoma brucei, which displayed insulin mimetic action inhibiting lipolysis, glucose 6 phosphatase, and fructose-1,6 diphosphatase, well-known insulin-mediated metabolic effects [48].
The commonest diagnoses were methyl malonic acIdaemia (n=2; 20%), non-ketotic hyperglycinaemia (n=7; 10%), fructose 1,6 diphosphatase deficiency (n=1; 10%), and biotinidase deficiency (n=1; 10%).
The increase in the glycolytic enzyme fructose 1,6 diphosphatase increases the pentose phosphate pathway.
The nucleoside diphosphates are converted to dianionic nucleoside monophosphates (used for the antiporter) and inorganic phosphate by a nucleoside diphosphatase.
Induction of liver enzymes important in xenobiotic and thyroid hormone metabolism--for example, uridine diphosphatase glucuronosyl transferases--can be measured in vitro in hepatocytes cultured with the test chemical.
The increase in glycolysis activates the enzyme fructose 1,6 diphosphatase which activates the pentose phosphate pathway liberating NADPH.