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Phosphoribosyl-ATP diphosphatase

In enzymology, a phosphoribosyl-ATP diphosphatase is an enzyme that catalyzes the chemical reaction 1-5-phosphoribosyl-ATP + H 2 O ⇌ {\displaystyle \rightleftharpoons } 1-5-phosphoribosyl-AMP + diphosphate Thus, the two substrates of this enzyme ...

                                               

Phosphoribosylamine-glycine ligase

In enzymology, phosphoribosylamine-glycine ligase, also known as glycinamide ribonucleotide synthetase, is an enzyme that catalyzes the chemical reaction ATP + 5-phospho-D-ribosylamine + glycine ⇌ {\displaystyle \rightleftharpoons } ADP + phospha ...

                                               

Phosphoribosylaminoimidazolecarboxamide formyltransferase

In enzymology, a phosphoribosylaminoimidazolecarboxamide formyltransferase, also known by the shorter name AICAR transformylase, is an enzyme that catalyzes the chemical reaction 10-formyltetrahydrofolate + AICAR ⇌ {\displaystyle \rightleftharpoo ...

                                               

Phosphoribosylformylglycinamidine synthase

In enzymology, a phosphoribosylformylglycinamidine synthase is an enzyme that catalyzes the chemical reaction ATP + N 2 -formyl-N 1 -5-phospho-D-ribosylglycinamide + L-glutamine + H 2 O ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + 2-fo ...

                                               

Phosphoribulokinase

Phosphoribulokinase is an essential photosynthetic enzyme that catalyzes the ATP-dependent phosphorylation of ribulose 5-phosphate into ribulose 1.5-bisphosphate, both intermediates in the Calvin Cycle. Its main function is to regenerate RuBP, wh ...

                                               

Phosphoserine phosphatase

In enzymology, a phosphoserine phosphatase is an enzyme that catalyzes the following chemical reaction: O-phospho-Lor D-serine + H 2 O ⇌ {\displaystyle \rightleftharpoons } Lor D-serine + phosphate ion This enzyme belongs to the family of hydrola ...

                                               

Phycocyanobilin: ferredoxin oxidoreductase

In enzymology, a phycocyanobilin:ferredoxin oxidoreductase is an enzyme that catalyzes the chemical reaction 3Z-phycocyanobilin + oxidized ferredoxin ⇌ {\displaystyle \rightleftharpoons } biliverdin IXalpha + reduced ferredoxin Thus, the two subs ...

                                               

Polo kinase

In enzymology, a polo kinase is a kinase enzyme i.e. one that catalyzes the chemical reaction ATP + a protein ⇌ {\displaystyle \rightleftharpoons } ADP + a phosphoprotein Thus, the two substrates of these enzymes are ATP and protein, whereas thei ...

                                               

Poly(3-hydroxybutyrate) depolymerase

In enzymology, a poly depolymerase is an enzyme that catalyzes the chemical reaction poly hydrolase.

                                               

Poly(alpha-L-guluronate) lyase

In enzymology, a poly lyase is an enzyme that catalyzes the chemical reaction Eliminative cleavage of polysaccharides containing a terminal alpha-L-guluronate group, to give oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enuronosyl groups at ...

                                               

Poly(beta-D-mannuronate) lyase

In enzymology, a poly lyase is an enzyme that catalyzes the chemical reaction Eliminative cleavage of polysaccharides containing beta-D-mannuronate residues to give oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enopyranuronosyl groups at th ...

                                               

Polyamine oxidase

In enzymology, a polyamine oxidase is an enzyme that catalyzes the chemical reaction N 1 -acetylspermine + O 2 + H 2 O ⇌ {\displaystyle \rightleftharpoons } N 1 -acetylspermidine + 3-aminopropanal + H 2 O 2 The 3 substrates of this enzyme are N1- ...

                                               

Polynucleotide 3-phosphatase

In enzymology, a polynucleotide 3-phosphatase is an enzyme that catalyzes the chemical reaction a 3-phosphopolynucleotide + H 2 O ⇌ {\displaystyle \rightleftharpoons } a polynucleotide + phosphate Thus, the two substrates of this enzyme are 3-pho ...

                                               

Polynucleotide 5-hydroxyl-kinase

In enzymology, a polynucleotide 5-hydroxyl-kinase is an enzyme that catalyzes the chemical reaction ATP + 5-dephospho-DNA ⇌ {\displaystyle \rightleftharpoons } ADP + 5-phospho-DNA Thus, the two substrates of this enzyme are ATP and 5-dephospho-DN ...

                                               

Polynucleotide 5-phosphatase

In enzymology, a polynucleotide 5-phosphatase is an enzyme that catalyzes the chemical reaction a 5-phosphopolynucleotide + H 2 O ⇌ {\displaystyle \rightleftharpoons } a polynucleotide + phosphate Thus, the two substrates of this enzyme are 5-pho ...

                                               

Polypeptide N-acetylgalactosaminyltransferase

In enzymology, a polypeptide N-acetylgalactosaminyltransferase is an enzyme that catalyzes the chemical reaction UDP-N-acetyl-D-galactosamine + polypeptide ⇌ {\displaystyle \rightleftharpoons } UDP + N-acetyl-D-galactosaminyl-polypeptide Thus, th ...

                                               

Polyphosphate-glucose phosphotransferase

In enzymology, a polyphosphate-glucose phosphotransferase is an enzyme that catalyzes the chemical reaction. phosphaten + D-glucose ⇌ {\displaystyle \rightleftharpoons } phosphaten-1 + D-glucose 6-phosphate Thus, the two substrates of this enzyme ...

                                               

Precorrin-2 C20-methyltransferase

In enzymology, a precorrin-2 C20-methyltransferase is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + precorrin-2 ⇌ {\displaystyle \rightleftharpoons } S-adenosyl-L-homocysteine + precorrin-3A Thus, the two substrates of ...

                                               

Precorrin-4 C11-methyltransferase

In enzymology, a precorrin-4 C11-methyltransferase is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + precorrin-4 ⇌ {\displaystyle \rightleftharpoons } S-adenosyl-L-homocysteine + precorrin-5 Thus, the two substrates of t ...

                                               

Precorrin-8X methylmutase

In enzymology, a precorrin-8X methylmutase is an enzyme that catalyzes the chemical reaction precorrin-8X ⇌ {\displaystyle \rightleftharpoons } hydrogenobyrinate Hence, this enzyme has one substrate, precorrin 8X, and one product, hydrogenobyrina ...

                                               

Prephenate dehydratase

In enzymology, a prephenate dehydratase is an enzyme that catalyzes the chemical reaction prephenate ⇌ {\displaystyle \rightleftharpoons } phenylpyruvate + H 2 O + CO 2 Hence, this enzyme has one substrate, prephenate, but 3 products: phenylpyruv ...

                                               

Prephenate dehydrogenase

Gene: Saccharomyces Cerevisiae TYR1 Shikimate pathway: Arogenate/Prephenate ADH/PDH. Although in the shikimate pathway arogenate and prephenate dehydrogenase catalyze different reactions, they can at times be used interchangeably. TyrA tyrosine A ...

                                               

Procollagen-proline dioxygenase

Procollagen-proline dioxygenase, commonly known as prolyl hydroxylase, is a member of the class of enzymes known as alpha-ketoglutarate-dependent hydroxylases. These enzymes catalyze the incorporation of oxygen into organic substrates through a m ...

                                               

Proline dehydrogenase

In enzymology, a proline dehydrogenase is an enzyme that catalyzes the chemical reaction L-proline + ubiquinone ⇌ {\displaystyle \rightleftharpoons } S-1-pyrroline-5-carboxylate + ubiquinol Thus, the two substrates of this enzyme are L-proline an ...

                                               

Proline racemase

In enzymology, a proline racemase is an enzyme that catalyzes the chemical reaction L-proline ⇌ {\displaystyle \rightleftharpoons } D-proline Hence, this enzyme has two substrates, L- and D-proline, and two products, D- and L- proline. This enzym ...

                                               

Proline-tRNA ligase

In enzymology, a proline - tRNA ligase is an enzyme that catalyzes the chemical reaction ATP + L-proline + tRNAPro ⇌ {\displaystyle \rightleftharpoons } AMP + diphosphate + L-prolyl-tRNAPro The 3 substrates of this enzyme are ATP, L-proline, and ...

                                               

Propanediol dehydratase

In enzymology, a propanediol dehydratase is an enzyme that catalyzes the chemical reaction propane-1.2-diol ⇌ {\displaystyle \rightleftharpoons } propanal + H 2 O Hence, this enzyme has one substrate, 1.2-propanediol, and two products, propanal a ...

                                               

Prostaglandin-D synthase

In enzymology, a prostaglandin-D synthase is an enzyme that catalyzes the chemical reaction 5Z,13E-15S-9alpha,11alpha-epidioxy-15-hydroxyprosta-5.13- dienoate ⇌ {\displaystyle \rightleftharpoons } 5Z,13E-15S-9alpha,15-dihydroxy-11-oxoprosta-5.13- ...

                                               

Prostaglandin-E2 9-reductase

In enzymology, a prostaglandin-E 2 9-reductase is an enzyme that catalyzes the chemical reaction 5Z,13E-15S-9alpha,11alpha,15-trihydroxyprosta-5.13-dienoate + NADP + ⇌ {\displaystyle \rightleftharpoons } 5Z,13E-15S-11alpha,15-dihydroxy-9-oxoprost ...

                                               

Protein geranylgeranyltransferase type I

In enzymology, a protein geranylgeranyltransferase type I is an enzyme that catalyzes the chemical reaction geranylgeranyl diphosphate + protein-cysteine ⇌ {\displaystyle \rightleftharpoons } S-geranylgeranyl-protein + diphosphate Thus, the two s ...

                                               

Protein-arginine deiminase

In enzymology, a protein-arginine deiminase is an enzyme that catalyzes a form of post translational modification called arginine de-imination or citrullination: protein L-arginine + H 2 O ⇌ {\displaystyle \rightleftharpoons } protein L-citrullin ...

                                               

Protein-disulfide reductase

In enzymology, a protein-disulfide reductase is an enzyme that catalyzes the chemical reaction protein dithiol + NADP+ ⇌ {\displaystyle \rightleftharpoons } protein disulfide + NADPH + H + The 3 substrates of this enzyme are protein dithiol, NAD ...

                                               

Protein-disulfide reductase (glutathione)

In enzymology, a protein-disulfide reductase is an enzyme that catalyzes the chemical reaction 2 glutathione + protein-disulfide ⇌ {\displaystyle \rightleftharpoons } glutathione disulfide + protein-dithiol Thus, the two substrates of this enzyme ...

                                               

Protein-glutamine gamma-glutamyltransferase

                                               

Protein-Npi-phosphohistidine-sugar phosphotransferase

In enzymology, a protein-Npi-phosphohistidine-sugar phosphotransferase is an enzyme that catalyzes the chemical reaction protein Npi-phospho-L-histidine + sugar ⇌ {\displaystyle \rightleftharpoons } protein histidine + sugar phosphate Thus, the t ...

                                               

Protein-serine epimerase

In enzymology, a protein-serine epimerase is an enzyme that catalyzes the chemical reaction -serine epimerase. This enzyme is also called protein-serine racemase.

                                               

Protocatechuate 4.5-dioxygenase

In enzymology, a protocatechuate 4.5-dioxygenase is an enzyme that catalyzes the chemical reaction protocatechuate + O 2 ⇌ {\displaystyle \rightleftharpoons } 4-carboxy-2-hydroxymuconate semialdehyde Thus, the two substrates of this enzyme are pr ...

                                               

Plasma membrane H+-ATPase

This article is about the P-type plasma membrane H + -ATPase found in plants and fungi. For the gastric H + / K + ATPase involved in the acidification of the stomach in mammals, see Hydrogen potassium ATPase.

                                               

Pseudouridylate synthase

In enzymology, a pseudouridylate synthase is an enzyme that catalyzes the chemical reaction uracil + D-ribose 5-phosphate ⇌ {\displaystyle \rightleftharpoons } pseudouridine 5-phosphate + H 2 O Thus, the two substrates of this enzyme are uracil a ...

                                               

Ptc1

Ptc1 is a type Two C phosphatase involved in the mating decision of yeast. Ptc1 competes with Fus3 for control of the 4 phosphorylation sites on the scaffold protein Ste5. Presence of the mating pheromone α-factor causes Ptc1 to be recruited to S ...

                                               

Pteridine reductase

In enzymology, a pteridine reductase is an enzyme that catalyzes the chemical reaction 5.6.7.8-tetrahydrobiopterin + 2 NADP + ⇌ {\displaystyle \rightleftharpoons } biopterin + 2 NADPH + 2 H + Thus, the two substrates of this enzyme are 5.6.7.8-te ...

                                               

Purine nucleosidase

In enzymology, a purine nucleosidase is an enzyme that catalyzes the chemical reaction a purine nucleoside + H 2 O ⇌ {\displaystyle \rightleftharpoons } D-ribose + a purine base Thus, the two substrates of this enzyme are purine nucleoside and H ...

                                               

Pyranose oxidase

In enzymology, a pyranose oxidase is an enzyme that catalyzes the chemical reaction D-glucose + O 2 ⇌ {\displaystyle \rightleftharpoons } 2-dehydro-D-glucose + H 2 O 2 Thus, the two substrates of this enzyme are D-glucose and O 2, whereas its two ...

                                               

Pyridoxal 4-dehydrogenase

In enzymology, a pyridoxal 4-dehydrogenase is an enzyme that catalyzes the chemical reaction pyridoxal + NAD + ⇌ {\displaystyle \rightleftharpoons } 4-pyridoxolactone + NADH + H + Thus, the two substrates of this enzyme are pyridoxal and NAD +, w ...

                                               

Pyridoxal kinase

In enzymology, a pyridoxal kinase is an enzyme that catalyzes the chemical reaction ATP + pyridoxal ⇌ {\displaystyle \rightleftharpoons } ADP + pyridoxal 5-phosphate Thus, the two substrates of this enzyme are ATP and pyridoxal, whereas its two p ...

                                               

Pyridoxal phosphatase

In enzymology, a pyridoxal phosphatase is an enzyme that catalyzes the chemical reaction pyridoxal 5-phosphate + H 2 O ⇌ {\displaystyle \rightleftharpoons } pyridoxal + phosphate Thus, the two substrates of this enzyme are pyridoxal 5-phosphate a ...

                                               

Pyrimidine-nucleoside phosphorylase

In enzymology, a pyrimidine-nucleoside phosphorylase is an enzyme that catalyzes the chemical reaction a pyrimidine nucleoside + phosphate ⇌ {\displaystyle \rightleftharpoons } a pyrimidine base + alpha-D-ribose 1-phosphate Thus, the two substrat ...

                                               

Pyrogallol hydroxytransferase

In enzymology, a pyrogallol hydroxytransferase is an enzyme that catalyzes the chemical reaction 1.2.3.5-tetrahydroxybenzene + 1.2.3-trihydroxybenzene ⇌ {\displaystyle \rightleftharpoons } 1.3.5-trihydroxybenzene + 1.2.3.5-tetrahydroxybenzene Thu ...

                                               

Pyrroline-5-carboxylate reductase

In enzymology, a pyrroline-5-carboxylate reductase is an enzyme that catalyzes the chemical reaction L -proline + NADP+ ⇌ {\displaystyle \rightleftharpoons } 1-pyrroline-5-carboxylate + NADPH + H + The 3 substrates of this enzyme are L -proline, ...

                                               

Pyruvate dehydrogenase (acetyl-transferring)

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