PathWhiz ID | Pathway | Meta Data |
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PW146856View Pathway |
drug action
Segesterone acetate Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 19:12 Last Updated: October 07, 2023 at 19:12 |
PW128323View Pathway |
drug action
Selegiline Action PathwayHomo sapiens
Selegiline is an irreversible monoamine oxidase inhibitor (MAOIs). It is indicated for the initial treatment of Parkinson's disease and for adjunct therapy in patients that are having decreased response to levodopa or carbadopa. This molecule can also be used as a palliative treatment of Alzheimer's disease and at very high doses, for the treatment of depression. The monoamine oxidase is an enzyme that catalyzes the oxidative deamination of many amines like serotonin, norepinephrine, epinephrine, and dopamine. There are 2 isoforms of this protein: A and B. The first one is found in cells located in the periphery and breakdown serotonin, norepinephrine, epinephrine, dopamine, and tyramine. The second one, the B isoform, breakdowns phenylethylamine, norepinephrine, epinephrine, dopamine, and tyramine. This isoform is found in the extracellular tissues and mostly in the brain. The mechanism of action of the MAOIs is still not determined, it is thought that they act by increasing free serotonin and norepinephrine concentrations and/or by altering the concentrations of other amines in the CNS. MAO-A inhibition is thought to be more relevant to antidepressant activity than the inhibition caused by MAO B. Selective MAO B inhibitors have no antidepressant effects. MAO-B is involved in the nigrostriatal pathways, it accelerates the breakdown of dopamine in the cells. Selegiline binds selectively to MAO-B, this hinders the microsomal breakdown of dopamine, thereby amplifying the dopaminergic activities in the substantial nigra. At higher doses, selegiline can also binds MAO-A, enabling its application in depression treatment. This drug is administered as an oral tablet.
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Creator: Daphnee Created On: August 21, 2023 at 08:56 Last Updated: August 21, 2023 at 08:56 |
PW145133View Pathway |
drug action
Selegiline Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 15:09 Last Updated: October 07, 2023 at 15:09 |
PW146212View Pathway |
drug action
Selenic acid Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 17:41 Last Updated: October 07, 2023 at 17:41 |
PW146250View Pathway |
drug action
Selenious acid Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 17:47 Last Updated: October 07, 2023 at 17:47 |
PW146256View Pathway |
drug action
Selenium Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 17:48 Last Updated: October 07, 2023 at 17:48 |
PW001894View Pathway |
Selenium MetabolismEscherichia coli
The selenium metabolism begins with the introduction of selenate and selenite to the cytosol through a sulphate permease system. Once in the cell, selenate can be reduced to selenite through nitrate reductases A and Z. Selenite then interacts with glutathione and 2 hydrogen ions resulting in the release of 2 water molecules, a hydroxide molecule, a glutathione disulfide and a selenodiglutathione. The latter compound then reacts with NADPH+H resulting in the release of a NADP, a glutathione and a glutathioselenol.
Glutathiolselenol can then be oxidize resulting in a a glutathiolselenol ion which can then interact with a water molecule resulting in a release of glutathion and selenium
Glutathiolselenol can also react with NADPH and hydrogen ion resulting in a release of glutathione, NADP, a hydroxide molecule and a hydrogen selenide. This compound can react in a reversible reaction by being oxidized resulting in a hydrogen selenide ion . This compound can then be phosphorylated by interacting with an ATP and releasing a AMP, a phosphate and a selenophosphate.
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Creator: miguel ramirez Created On: September 10, 2015 at 12:37 Last Updated: September 10, 2015 at 12:37 |
PW123413View Pathway |
Selenium MetabolismPseudomonas aeruginosa
The selenium metabolism begins with the introduction of selenate and selenite to the cytosol through a sulphate permease system. Once in the cell, selenate can be reduced to selenite through nitrate reductases A and Z. Selenite then interacts with glutathione and 2 hydrogen ions resulting in the release of 2 water molecules, a hydroxide molecule, a glutathione disulfide and a selenodiglutathione. The latter compound then reacts with NADPH+H resulting in the release of a NADP, a glutathione and a glutathioselenol.
Glutathiolselenol can then be oxidize resulting in a a glutathiolselenol ion which can then interact with a water molecule resulting in a release of glutathion and selenium
Glutathiolselenol can also react with NADPH and hydrogen ion resulting in a release of glutathione, NADP, a hydroxide molecule and a hydrogen selenide. This compound can react in a reversible reaction by being oxidized resulting in a hydrogen selenide ion . This compound can then be phosphorylated by interacting with an ATP and releasing a AMP, a phosphate and a selenophosphate.
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Creator: Ana Marcu Created On: August 12, 2019 at 21:54 Last Updated: August 12, 2019 at 21:54 |
PW145069View Pathway |
drug action
Selenium Sulfide Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 15:01 Last Updated: October 07, 2023 at 15:01 |
PW064562View Pathway |
Selenoamino Acid MetabolismMus musculus
Phospholipids are membrane components in P. aeruginosa. The major phospholipids of P. aeruginosa are phosphatidylethanolamine, phosphatidylglycerol, and cardiolipin. All phospholipids contain sn-glycerol-3-phosphate esterified with fatty acids at the sn-1 and sn-2 positions. The reaction starts from a glycerone phosphate (dihydroxyacetone phosphate) produced in glycolysis. The glycerone phosphate is transformed into an sn-glycerol 3-phosphate (glycerol 3 phosphate) by NADPH-driven glycerol-3-phosphate dehydrogenase. sn-Glycerol 3-phosphate is transformed to a 1-acyl-sn-glycerol 3-phosphate (lysophosphatidic acid). This can be achieved by an sn-glycerol-3-phosphate acyltransferase that interacts either with a long-chain acyl-CoA or with an acyl-[acp]. The 1-acyl-sn-glycerol 3-phosphate is transformed into a 1,2-diacyl-sn-glycerol 3-phosphate (phosphatidic acid) through a 1-acylglycerol-3-phosphate O-acyltransferase. This compound is then converted into a CPD-diacylglycerol through a CTP phosphatidate cytididyltransferase. CPD-diacylglycerol can be transformed either into an L-1-phosphatidylserine or an L-1-phosphatidylglycerol-phosphate through a phosphatidylserine synthase or a phosphatidylglycerophosphate synthase, respectively. The L-1-phosphatidylserine transforms into L-1-phosphatidylethanolamine through a phosphatidylserine decarboxylase. On the other hand, L-1-phosphatidylglycerol-phosphate gets transformed into an L-1-phosphatidyl-glycerol through a phosphatidylglycerophosphatase. These 2 products combine to produce a cardiolipin and an ethanolamine. The L-1 phosphatidyl-glycerol can also interact with cardiolipin synthase resulting in a glycerol and a cardiolipin.
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Creator: Carin Li Created On: January 21, 2018 at 16:31 Last Updated: January 21, 2018 at 16:31 |