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| Name | Histamine Phosphate | ||||||||||||||||||||||||||||||||||||
| Accession Number | DB00667 (APRD01015) | ||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||
| Groups | approved | ||||||||||||||||||||||||||||||||||||
| Description | Histamine stimulates gastric gland secretion, causing an increased secretion of gastric juice of high acidity. This action is probably due mainly to a direct action on parietal and chief gland cells. |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Synonyms | Not Available | ||||||||||||||||||||||||||||||||||||
| Synonyms | Not Available | ||||||||||||||||||||||||||||||||||||
| Salts | Not Available | ||||||||||||||||||||||||||||||||||||
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| Brand mixtures | Not Available | ||||||||||||||||||||||||||||||||||||
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| CAS number | 51-74-1 | ||||||||||||||||||||||||||||||||||||
| Weight |
Average: 307.1354 Monoisotopic: 307.033437495 |
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| Chemical Formula | C5H15N3O8P2 | ||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=ZHIBQGJKHVBLJJ-UHFFFAOYSA-N | ||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C5H9N3.2H3O4P/c6-2-1-5-3-7-4-8-5;2*1-5(2,3)4/h3-4H,1-2,6H2,(H,7,8);2*(H3,1,2,3,4)
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| IUPAC Name |
2-(1H-imidazol-5-yl)ethan-1-amine; bis(phosphoric acid)
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| SMILES |
OP(O)(O)=O.OP(O)(O)=O.NCCC1=CN=CN1
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| Mass Spec | Not Available | ||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||
| Kingdom | Organic | ||||||||||||||||||||||||||||||||||||
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| Substructures |
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| Pharmacology | |||||||||||||||||||||||||||||||||||||
| Indication | Histamine phosphate is indicated as a diagnostic aid for evaluation of gastric acid secretory function. | ||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | Histamine stimulates gastric gland secretion, causing an increased secretion of gastric juice of high acidity. This action is probably due mainly to a direct action on parietal and chief gland cells. | ||||||||||||||||||||||||||||||||||||
| Mechanism of action | Histamine acts directly on the blood vessels to dilate arteries and capillaries; this action is mediated by both H 1- and H 2-receptors. Capillary dilatation may produce flushing of the face, a decrease in systemic blood pressure, and gastric gland secretion, causing an increased secretion of gastric juice of high acidity. Increased capillary permeability accompanies capillary dilatation, producing an outward passage of plasma protein and fluid into the extracellular spaces, an increase in lymph flow and protein content, and the formation of edema. In addition, histamine has a direct stimulant action on smooth muscle, producing contraction if H 1-receptors are activated, or mostly relaxation if H 2-receptors are activated. Also in humans, the stimulant effect of histamine may cause contraction of the intestinal muscle. However, little effect is noticed on the uterus, bladder, or gallbladder. Histamine has some stimulant effect on duodenal, salivary, pancreatic, bronchial, and lacrimal glands. Histamine also can bind to H3 and H4 receptors which are involved in the CNS/PNS neurotransmitter release and immune system chemotaxis, respectively. | ||||||||||||||||||||||||||||||||||||
| Absorption | Readily absorbed after parenteral administration | ||||||||||||||||||||||||||||||||||||
| Volume of distribution | Not Available | ||||||||||||||||||||||||||||||||||||
| Protein binding | Not Available | ||||||||||||||||||||||||||||||||||||
| Metabolism | Primarily hepatic. Histamine is rapidly metabolized by methylation and oxidation. Methylation involves ring methylation and catalyzation by the enzyme histamine-N-methyltransferase, producing N-methylhistamine, which is mostly converted to N-methyl imidazole acetic acid. 2 to 3% excreted as free histamine, 4 to 8% as N-methylhistamine, 42 to 47% as N-methyl imidazole acetic acid, 9 to 11% as imidazole acetic acid, and 16 to 23% as imidazole acetic acid riboside | ||||||||||||||||||||||||||||||||||||
| Route of elimination | Not Available | ||||||||||||||||||||||||||||||||||||
| Half life | Not Available | ||||||||||||||||||||||||||||||||||||
| Clearance | Not Available | ||||||||||||||||||||||||||||||||||||
| Toxicity | LD50=807 mg/kg (mouse, oral). Side effects can lead to hypertension, hypotension, headache, dizziness, nervousness and tachycardia. Large overdoses can lead to seizures. | ||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||
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| Patents | Not Available | ||||||||||||||||||||||||||||||||||||
| Properties | |||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||
| Melting point | 139 oC | ||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Predicted Properties |
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||
| General Reference | Not Available | ||||||||||||||||||||||||||||||||||||
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| PDB Entries | Not Available | ||||||||||||||||||||||||||||||||||||
| FDA label | Not Available | ||||||||||||||||||||||||||||||||||||
| MSDS | show (49.5 KB) | ||||||||||||||||||||||||||||||||||||
| Interactions | |||||||||||||||||||||||||||||||||||||
| Drug Interactions | Not Available | ||||||||||||||||||||||||||||||||||||
| Food Interactions | Not Available | ||||||||||||||||||||||||||||||||||||
| Targets |
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Pharmacological action: yes
Actions: agonist In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamine release from adrenal medulla, as well as mediating neurotransmission in the central nervous system Organism class: humanUniProt ID: P35367 ![]() Gene: HRH1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: yes
Actions: agonist The H2 subclass of histamine receptors mediates gastric acid secretion. Also appears to regulate gastrointestinal motility and intestinal secretion. Possible role in regulating cell growth and differentiation. The activity of this receptor is mediated by G proteins which activate adenylyl cyclase and, through a separate G protein-dependent mechanism, the phosphoinositide/protein kinase (PKC) signaling pathway Organism class: humanUniProt ID: P25021 ![]() Gene: HRH2 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: yes
Actions: agonist The H3 subclass of histamine receptors could mediate the histamine signals in CNS and peripheral nervous system. Signals through the inhibition of adenylate cyclase and displays high constitutive activity (spontaneous activity in the absence of agonist). Agonist stimulation of isoform 3 niether modified adenylate cyclase activity nor induced intracellular calcium mobilization Organism class: humanUniProt ID: Q9Y5N1 ![]() Gene: HRH3 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: unknown
Actions: agonist The H4 subclass of histamine receptors could mediate the histamine signals in peripheral tissues. Displays a significant level of constitutive activity (spontaneous activity in the absence of agonist) Organism class: humanUniProt ID: Q9H3N8 ![]() Gene: HRH4 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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1. Histamine N-methyltransferase Actions: substrateInactivates histamine by N-methylation. Plays an important role in degrading histamine and in regulating the airway response to histamine UniProt ID: P50135![]() Gene: HNMT Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S- warfarin, diclofenac, phenytoin, tolbutamide and losartan UniProt ID: P11712![]() Gene: CYP2C9 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inhibitor
Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants UniProt ID: P10635![]() Gene: CYP2D6 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide UniProt ID: P08684![]() Gene: CYP3A4 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Transporters |
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1. Solute carrier family 22 member 2 Actions: substrate, inhibitorMediates tubular uptake of organic compounds from circulation. Mediates the influx of agmatine, dopamine, noradrenaline (norepinephrine), serotonin, choline, famotidine, ranitidine, histamin, creatinine, amantadine, memantine, acriflavine, 4-[4-(dimethylamino)-styryl]-N-methylpyridinium ASP, amiloride, metformin, N-1-methylnicotinamide (NMN), tetraethylammonium (TEA), 1-methyl-4-phenylpyridinium (MPP), cimetidine, cisplatin and oxaliplatin. Cisplatin may develop a nephrotoxic action. Transport of creatinine is inhibited by fluoroquinolones such as DX-619 and LVFX. This transporter is a major determinant of the anticancer activity of oxaliplatin and may contribute to antitumor specificity UniProt ID: O15244![]() Gene: SLC22A2 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
2. Solute carrier family 22 member 1 Actions: substrate, inhibitorTranslocates a broad array of organic cations with various structures and molecular weights including the model compounds 1-methyl-4-phenylpyridinium (MPP), tetraethylammonium (TEA), N-1-methylnicotinamide (NMN), 4-(4-(dimethylamino)styryl)- N-methylpyridinium (ASP), the endogenous compounds choline, guanidine, histamine, epinephrine, adrenaline, noradrenaline and dopamine, and the drugs quinine, and metformin. The transport of organic cations is inhibited by a broad array of compounds like tetramethylammonium (TMA), cocaine, lidocaine, NMDA receptor antagonists, atropine, prazosin, cimetidine, TEA and NMN, guanidine, cimetidine, choline, procainamide, quinine, tetrabutylammonium, and tetrapentylammonium. Translocates organic cations in an electrogenic and pH-independent manner. Translocates organic cations across the plasma membrane in both directions. Transports the polyamines spermine and spermidine. Transports pramipexole across the basolateral membrane of the proximal tubular epithelial cells. The choline transport is activated by MMTS. Regulated by various intracellular signaling pathways including inhibition by protein kinase A activation, and endogenously activation by the calmodulin complex, the calmodulin- dependent kinase II and LCK tyrosine kinase UniProt ID: O15245![]() Gene: SLC22A1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
3. Solute carrier family 22 member 3 Actions: inhibitorMediates potential-dependent transport of a variety of organic cations. May play a significant role in the disposition of cationic neurotoxins and neurotransmitters in the brain UniProt ID: O75751![]() Gene: SLC22A3 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
4. Organic cation/carnitine transporter 2 Actions: inhibitorSodium-ion dependent, high affinity carnitine transporter. Involved in the active cellular uptake of carnitine. Transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Also Relative uptake activity ratio of carnitine to TEA is 11.3 UniProt ID: O76082![]() Gene: SLC22A5 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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