Gene Association: VPS13B
UniProt Search:
VPS13B (PROTEIN_CODING)
Function Description: vacuolar protein sorting 13 homolog B
found 4 associated metabolites with current gene based on the text mining result from the pubmed database.
Coproporphyrin III
Coproporphyrin III is a porphyrin metabolite arising from heme synthesis. Porphyrins are pigments found in both animal and plant life. Coproporphyrin III is a tetrapyrrole dead-end product from the spontaneous oxidation of the methylene bridges of coproporphynogen, arising from heme synthesis and secreted in feces and urine. Increased levels of coproporphyrins can indicate congenital erythropoietic porphyria or sideroblastic anaemia, which are inherited disorders. Porphyria is a pathological state characterised by abnormalities of porphyrin metabolism and results in the excretion of large quantities of porphyrins in the urine and in extreme sensitivity to light. A large number of factors are capable of increasing porphyrin excretion, owing to different and multiple causes and etiologies: 1) the main site of the chronic hepatic porphyria disease process concentrates on the liver, 2) a functional and morphologic liver injury is almost regularly associated with this chronic porphyria, 3) the toxic form due to occupational and environmental exposure takes mainly a subclinical course. Hepatic factors includes disturbance in coproporphyrinogen metabolism, which results from inhibition of coproporphyrinogen oxidase as well as from the rapid loss from, and diminished utilization of coproporphyrinogen in the hepatocytes, which may also explain why coproporphyrin, its autoxidation product, predominates physiologically in the urine; decreased biliary excretion of coproporphyrin leading to a compensatory urinary excretion, so that the coproporphyrin ring isomer ratio (1:III) becomes a sensitive index for impaired liver function and intrahepatic cholestasis; and disturbed activity of hepatic uroporphyrinogen decarboxylase. In itself, secondary coproporphyrinuria is not associated with porphyria symptoms of a hepatologic-gastroenterologic, neurologic, or dermatologic order, even though coproporphyrinuria can occur with such symptoms. (PMID: 3327428). Excreted in small amounts in urine and faeces, found in blood, yeast, microorganisms etc. By-product of Haem formation in vivo, due to oxidation of the porphyrinogen (CCD) Coproporphyrin III (Zincphyrin) is a naturally occurring porphyrin derivative that is mainly found in urine[1][2].
Brinzolamide
Brinzolamide is a highly specific, non-competitive, reversible carbonic anhydrase inhibitor. Carbonic anhydrase (CA) is an enzyme found in many tissues of the body including the eye. It catalyzes the reversible reaction involving the hydration of carbon dioxide and the dehydration of carbonic acid. In humans, carbonic anhydrase exists as a number of isoenzymes, the most active being carbonic anhydrase II (CA-II). Inhibition of carbonic anhydrase in the ciliary processes of the eye decreases aqueous humor secretion, presumably by slowing the formation of bicarbonate ions with subsequent reduction in sodium and fluid transport. The result is a reduction in intraocular pressure. Brinzolamide is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. S - Sensory organs > S01 - Ophthalmologicals > S01E - Antiglaucoma preparations and miotics > S01EC - Carbonic anhydrase inhibitors C78283 - Agent Affecting Organs of Special Senses > C29705 - Anti-glaucoma Agent D004791 - Enzyme Inhibitors > D002257 - Carbonic Anhydrase Inhibitors C471 - Enzyme Inhibitor > C29577 - Carbonic Anhydrase Inhibitor
Coproporphyrin III
Coproporphyrin III (Zincphyrin) is a naturally occurring porphyrin derivative that is mainly found in urine[1][2].
Brinzolamide
S - Sensory organs > S01 - Ophthalmologicals > S01E - Antiglaucoma preparations and miotics > S01EC - Carbonic anhydrase inhibitors C78283 - Agent Affecting Organs of Special Senses > C29705 - Anti-glaucoma Agent D004791 - Enzyme Inhibitors > D002257 - Carbonic Anhydrase Inhibitors C471 - Enzyme Inhibitor > C29577 - Carbonic Anhydrase Inhibitor
