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Porphobilinogen (PBG) is an organic compound that occurs in living organisms as an intermediate in the biosynthesis of porphyrins, which include critical substances like hemoglobin and chlorophyll. [ 1 ]
The most well-known health issue involving porphobilinogen deaminase is acute intermittent porphyria, an autosomal dominant genetic disorder where insufficient hydroxymethylbilane is produced, leading to a build-up of porphobilinogen in the cytoplasm. This is caused by a gene mutation that, in 90% of cases, causes decreased amounts of enzyme.
Aminolevulinic acid dehydratase (porphobilinogen synthase, or ALA dehydratase, or aminolevulinate dehydratase) is an enzyme (EC 4.2.1.24) that in humans is encoded by the ALAD gene. [ 5 ] [ 6 ] Porphobilinogen synthase (or ALA dehydratase , or aminolevulinate dehydratase ) synthesizes porphobilinogen through the asymmetric condensation of two ...
HMB is generated from four molecules of porphobilinogen by the enzyme porphobilinogen deaminase: [2] The enzyme uroporphyrinogen III synthase closes the chain to form uroporphyrinogen III : [ 2 ] Uroporphyrinogen III is a porphyrinogen , which is a class of compounds with the hexahydroporphine macrocycle .
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The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Phycobilins (from Greek: φύκος (phykos) meaning "alga", and from Latin: bilis meaning "bile") are light-capturing bilins found in cyanobacteria and in the chloroplasts of red algae, glaucophytes and some cryptomonads (though not in green algae and plants). [1]
Voxelotor, sold under the brand name Oxbryta, was a medication used for the treatment of sickle cell disease. [1] [3] [4] [5] [6] Voxelotor is the first hemoglobin ...