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・ Phosphoramidate
・ Phosphoramidate—hexose phosphotransferase
・ Phosphoramide
・ Phosphoramidite
・ Phosphoramidon
・ Phosphorane
・ Phosphorene
・ Phosphorescence
・ Phosphorescent (band)
・ Phosphorescent Harvest
・ Phosphorescent organic light-emitting diode
・ Phosphoria Formation
・ Phosphoribokinase
・ Phosphoribosyl pyrophosphate
・ Phosphoribosyl-AMP cyclohydrolase
Phosphoribosyl-ATP diphosphatase
・ Phosphoribosyl-N-formylglycineamide
・ Phosphoribosylamine
・ Phosphoribosylamine—glycine ligase
・ Phosphoribosylaminoimidazole carboxylase
・ Phosphoribosylaminoimidazole synthetase
・ Phosphoribosylaminoimidazolecarboxamide formyltransferase
・ Phosphoribosylaminoimidazolesuccinocarboxamide
・ Phosphoribosylaminoimidazolesuccinocarboxamide synthase
・ Phosphoribosylanthranilate isomerase
・ Phosphoribosylformylglycinamidine synthase
・ Phosphoribosylglycinamide formyltransferase
・ Phosphoribosyltransferase
・ Phosphoribulokinase
・ Phosphoric


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Phosphoribosyl-ATP diphosphatase : ウィキペディア英語版
Phosphoribosyl-ATP diphosphatase

In enzymology, a phosphoribosyl-ATP diphosphatase () is an enzyme that catalyzes the chemical reaction
:1-(5-phosphoribosyl)-ATP + H2O \rightleftharpoons 1-(5-phosphoribosyl)-AMP + diphosphate
Thus, the two substrates of this enzyme are 1-(5-phosphoribosyl)-ATP and H2O, whereas its two products are 1-(5-phosphoribosyl)-AMP and diphosphate.
This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides in phosphorus-containing anhydrides. The systematic name of this enzyme class is 1-(5-phosphoribosyl)-ATP diphosphohydrolase. Other names in common use include phosphoribosyl-ATP pyrophosphatase, and phosphoribosyladenosine triphosphate pyrophosphatase. This enzyme participates in histidine metabolism. It employs one cofactor, H+.
==Structural studies==

As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes , , , and .

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