PathWhiz ID | Pathway | Meta Data |
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PW123529View Pathway |
Uracil Degradation IIIPseudomonas aeruginosa
Uracil is a pyrimidine nucleobase found in RNA, and can be used as a source of nitrogen for E. coli. There are at least three pathways through which uracil is degraded. This one begins with uracil, which originates from purine degradation. The putative monooxygenase enzyme rutA catalyzes the breakdown of uracil into peroxyaminoacrylate, using FMNH2 as a cofactor. Peroxyaminoacrylate is then broken down into both carbamic acid and 3-aminoacrylate following the addition of a water molecule by the putative isochorismatase family protein rutB. Carbamic acid can then spontaneously, with the addition of a hydrogen ion, split into an ammonium ion and a molecule of carbon dioxide. 3-aminoacrylate, on the other hand, is catalyzed by the UPF0076 protein rutC to form 2-aminoacrylic acid. This compound enters into a reaction catalyzed by protein rutD, which adds a water molecule and hydrogen ion and forms malonic semialdehyde with ammonium being a byproduct. Finally, the putative NADH dehydrogenase/NAD(P)H nitroreductase rutE complex converts malonic semialdehyde into hydroxypropionic acid, which is then used to form other necessary chemicals. The ammonium ions produced will be the important source of nitrogen for the bacteria.
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Creator: Ana Marcu Created On: August 12, 2019 at 22:26 Last Updated: August 12, 2019 at 22:26 |
PW144898View Pathway |
drug action
Uracil mustard Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 14:39 Last Updated: October 07, 2023 at 14:39 |
PW012928View Pathway |
Urate Degradation to GlyoxylateArabidopsis thaliana
Purine nucleotides are eventually degraded to ammonia and carbon dioxide. This pathway begins in the peroxisome and follows the degradation a urate intermediate to glyoxylate. The last three steps take place in the endoplasmic reticulum. First, uricase converts urate into 5-hydroxyisourate. Steps two and three are catalyzed by the bifunctional enzyme S-allantoin synthase: the conversion of 5-hydroxyisourate into 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate (OHCU) and the conversion of OHCU into S-allantoin. Fourth, allantoinase requires zinc ion as a cofactor to catalyze the conversion of S-allantoin into allantoate. Next allantoate must be transported out of the peroxisome and into the endoplasmic reticulum. Fifth, allantoate amidohydrolase catalyzes the conversion of allantoate into S-ureidoglycine. This enzyme is a homodimer and requires manganese ion as a cofactor. Sixth, ureidoglycine aminohydrolase requires a manganese ion as a cofactor to catalyze the conversion of S-ureidoglycine into S-ureidoglycolate. Seventh, ureidoglycolate amidohydrolase catalyzes the conversion of S-ureidoglycolate into glyoxylate.
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Creator: Carin Li Created On: February 24, 2017 at 21:30 Last Updated: February 24, 2017 at 21:30 |
PW012915View Pathway |
Urate Degradation to UreidoglycolateArabidopsis thaliana
Purine nucleotides are eventually degraded to ammonia and carbon dioxide. This pathway begins in the peroxisome and follows the degradation a urate intermediate to S-ureidoglycolate. The last two steps take place in the endoplasmic reticulum. First, uricase converts urate into 5-hydroxyisourate. Steps two and three are catalyzed by the bifunctional enzyme S-allantoin synthase: the conversion of 5-hydroxyisourate into 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate (OHCU) and the conversion of OHCU into S-allantoin. Fourth, allantoinase requires zinc ion as a cofactor to catalyze the conversion of S-allantoin into allantoate. Next allantoate must be transported out of the peroxisome and into the endoplasmic reticulum. Fifth, allantoate amidohydrolase catalyzes the conversion of allantoate into S-ureidoglycine. This enzyme is a homodimer and requires manganese ion as a cofactor. Sixth, ureidoglycine aminohydrolase requires a manganese ion as a cofactor to catalyze the conversion of S-ureidoglycine into S-ureidoglycolate.
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Creator: Carin Li Created On: February 24, 2017 at 15:48 Last Updated: February 24, 2017 at 15:48 |
PW132171View Pathway |
Urea C-13 Drug MetabolismHomo sapiens
Urea C-13 is a drug that is not metabolized by the human body as determined by current research and biotransformer analysis. Urea C-13 passes through the liver and is then excreted from the body mainly through the kidney.
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Creator: Ray Kruger Created On: September 21, 2023 at 19:55 Last Updated: September 21, 2023 at 19:55 |
PW146180View Pathway |
drug action
Urea C-13 Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 17:36 Last Updated: October 07, 2023 at 17:36 |
PW132170View Pathway |
Urea C-14 Drug MetabolismHomo sapiens
Urea C-14 is a drug that is not metabolized by the human body as determined by current research and biotransformer analysis. Urea C-14 passes through the liver and is then excreted from the body mainly through the kidney.
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Creator: Ray Kruger Created On: September 21, 2023 at 19:54 Last Updated: September 21, 2023 at 19:54 |
PW146183View Pathway |
drug action
Urea C-14 Drug Metabolism Action PathwayHomo sapiens
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Creator: Ray Kruger Created On: October 07, 2023 at 17:36 Last Updated: October 07, 2023 at 17:36 |
PW088338View Pathway |
Urea CycleRattus norvegicus
Urea, also known as carbamide, is a waste product made by a large variety of living organisms and is the main component of urine. Urea is created in the liver, through a string of reactions that are called the Urea Cycle. This cycle is also
called the Ornithine Cycle, as well as the Krebs-Henseleit Cycle. There are some essential compounds required for the completion of this cycle, such as arginine, citrulline and ornithine. Arginine cleaves and creates urea and ornithine, and the reactions that follow see urea residue build up on ornithine, which recreates arginine and keeps the cycle going. Ornithine is transported to the mitochondrial matrix, and once there, ornithine carbamoyltransferase uses carbamoyl phosphate to create citrulline. After this, citrulline is transported to the cytosol. Once here, citrulline and aspartate team up to create argininosuccinic acid. After this, argininosuccinate lyase creates l-arginine. L-arginine finally uses arginase-1 to create ornithine again, which will be transported to the mitochondrial matrix and restart the urea cycle once more.
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Creator: Ana Marcu Created On: August 10, 2018 at 13:58 Last Updated: August 10, 2018 at 13:58 |
PW000162View Pathway |
Urea CycleHomo sapiens
Urea, also known as carbamide, is a waste product made by a large variety of living organisms and is the main component of urine. Urea is created in the liver, through a string of reactions that are called the Urea Cycle. This cycle is also
called the Ornithine Cycle, as well as the Krebs-Henseleit Cycle. There are some essential compounds required for the completion of this cycle, such as arginine, citrulline and ornithine. Arginine cleaves and creates urea and ornithine, and the reactions that follow see urea residue build up on ornithine, which recreates arginine and keeps the cycle going. Ornithine is transported to the mitochondrial matrix, and once there, ornithine carbamoyltransferase uses carbamoyl phosphate to create citrulline. After this, citrulline is transported to the cytosol. Once here, citrulline and aspartate team up to create argininosuccinic acid. After this, argininosuccinate lyase creates l-arginine. L-arginine finally uses arginase-1 to create ornithine again, which will be transported to the mitochondrial matrix and restart the urea cycle once more.
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Creator: WishartLab Created On: August 19, 2013 at 12:04 Last Updated: August 19, 2013 at 12:04 |