Target type: molecularfunction
Catalysis of the reaction: diphosphate + H2O = H+ + 2 phosphate. [EC:3.6.1.1, RHEA:24576]
Inorganic diphosphate phosphatase activity is a crucial enzymatic function that hydrolyzes inorganic pyrophosphate (PPi) into two inorganic phosphate molecules (Pi). This reaction is vital for maintaining cellular phosphate homeostasis and driving various metabolic processes. The enzyme responsible for this activity, known as inorganic diphosphate phosphatase, plays a critical role in regulating the concentration of PPi, a potent inhibitor of many biosynthetic reactions. By removing PPi, the enzyme facilitates the progression of these reactions, including nucleotide synthesis, DNA replication, and protein synthesis. Moreover, inorganic diphosphate phosphatase contributes to the energy balance within the cell by generating Pi, a key component of ATP, the primary energy currency of the cell. It also participates in signaling pathways by regulating the levels of PPi, a signaling molecule involved in diverse cellular processes. In essence, inorganic diphosphate phosphatase activity is essential for maintaining cellular metabolism, growth, and signaling.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Inorganic pyrophosphatase | An inorganic pyrophosphatase Ppa that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P0A7A9] | Escherichia coli K-12 |
| Alkaline phosphatase, tissue-nonspecific isozyme | An alkaline phosphatase, tissue-nonspecific isozyme that is encoded in the genome of cow. [OMA:P09487, PRO:DNx] | Bos taurus (cattle) |
| Exopolyphosphatase PRUNE1 | An exopolyphosphatase PRUNE1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q86TP1] | Homo sapiens (human) |
| Alkaline phosphatase, tissue-nonspecific isozyme | An alkaline phosphatase, tissue-nonspecific isozyme that is encoded in the genome of human. [PRO:DNx, UniProtKB:P05186] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| theophylline | dimethylxanthine | adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent | |
| dipyridamole | dipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots. Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752) | piperidines; pyrimidopyrimidine; tertiary amino compound; tetrol | adenosine phosphodiesterase inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor; platelet aggregation inhibitor; vasodilator agent |
| adenosine monophosphate | Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | adenosine 5'-phosphate; purine ribonucleoside 5'-monophosphate | adenosine A1 receptor agonist; cofactor; EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.11 (fructose-bisphosphatase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
| leucine | leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group. Leucine: An essential branched-chain amino acid important for hemoglobin formation. | amino acid zwitterion; L-alpha-amino acid; leucine; proteinogenic amino acid; pyruvate family amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
| phenylalanine | L-phenylalanine : The L-enantiomer of phenylalanine. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE. | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid | algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
| tryptophan | tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3. Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals. | erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; L-alpha-amino acid zwitterion; proteinogenic amino acid; tryptophan; tryptophan zwitterion | antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
| homoarginine | L-homoarginine : An L-lysine derivative that is the L-enantiomer of homoarginine. | homoarginine; L-lysine derivative; non-proteinogenic L-alpha-amino acid | biomarker; EC 3.1.3.1 (alkaline phosphatase) inhibitor; human metabolite; rat metabolite; xenobiotic metabolite |
| levamisole | levamisole : A 6-phenyl-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazole that has S configuration. It is used (generally as the monohydrochloride salt) to treat parasitic worm infections in pigs, sheep and cattle and was formerly used in humans as an adjuvant to chemotherapy for the treatment of various cancers. It is also widely used as an adulterant to coccaine. Levamisole: An antihelminthic drug that has been tried experimentally in rheumatic disorders where it apparently restores the immune response by increasing macrophage chemotaxis and T-lymphocyte function. Paradoxically, this immune enhancement appears to be beneficial in rheumatoid arthritis where dermatitis, leukopenia, and thrombocytopenia, and nausea and vomiting have been reported as side effects. (From Smith and Reynard, Textbook of Pharmacology, 1991, p435-6) | 6-phenyl-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazole | antinematodal drug; antirheumatic drug; EC 3.1.3.1 (alkaline phosphatase) inhibitor; immunological adjuvant; immunomodulator |
| levamisole hydrochloride | organic molecular entity | ||
| 1-(3,4-dihydroxyphenyl)-2-(1-imidazolyl)ethanone | aromatic ketone | ||
| 1-(3,4-dihydroxyphenyl)-2-[(4,6-dimethyl-2-pyrimidinyl)thio]ethanone | aromatic ketone | ||
| 2,4-diaziran-1-yl-6-(1-phenyl-1H-pyrrol-2-yl)-1,3,5-triazine | pyrroles | ||
| 2,5-dimethoxy-n-(quinolin-3-yl)benzenesulfonamide | 2,5-dimethoxy-N-(quinolin-3-yl)benzenesulfonamide: a tissue-nonspecific alkaline phosphatase inhibitor; structure in first source | quinolines | |
| 3-nitrobenzaldehyde isonicotinoylhydrazone | 3-nitrobenzaldehyde isonicotinoylhydrazone: structure in first source | ||
| salinazid | aromatic carboxylic acid; pyridinemonocarboxylic acid | ||
| phthivazide |