• Thumbnail for Porphobilinogen deaminase
    Porphobilinogen deaminase (hydroxymethylbilane synthase, or uroporphyrinogen I synthase) is an enzyme (EC 2.5.1.61) that in humans is encoded by the HMBS...
    13 KB (1,621 words) - 23:30, 2 October 2024
  • Thumbnail for Porphobilinogen
    Porphobilinogen (PBG) is an organic compound that occurs in living organisms as an intermediate in the biosynthesis of porphyrins, which include critical...
    3 KB (219 words) - 21:14, 5 February 2024
  • Thumbnail for Delta-aminolevulinic acid dehydratase
    Aminolevulinic acid dehydratase (porphobilinogen synthase, or ALA dehydratase, or aminolevulinate dehydratase) is an enzyme (EC 4.2.1.24) that in humans...
    17 KB (1,918 words) - 18:27, 25 July 2024
  • Thumbnail for Acute intermittent porphyria
    affecting the production of heme resulting from a deficiency of the enzyme porphobilinogen deaminase. It is the most common of the acute porphyrias. The clinical...
    25 KB (2,766 words) - 16:04, 20 October 2024
  • Thumbnail for Porphyrin
    pathway. Two molecules of dALA are then combined by porphobilinogen synthase to give porphobilinogen (PBG), which contains a pyrrole ring. Four PBGs are...
    25 KB (2,304 words) - 18:35, 7 October 2024
  • derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3. Porphobilinogen, a trisubstituted pyrrole, is the biosynthetic precursor to many natural...
    33 KB (3,142 words) - 17:38, 21 February 2024
  • Thumbnail for Phycocyanobilin
    undergo a condensation reaction catalyzed by Porphobilinogen (PBG) Synthase to yield a molecule of Porphobilinogen (PBG) (not shown). Four molecules of PBG...
    6 KB (431 words) - 02:31, 20 March 2024
  • Thumbnail for Lone pair
    enzymes, such as zinc cations in the ALAD enzyme, which is also known as porphobilinogen synthase, and is important in the synthesis of heme, a key component...
    23 KB (2,957 words) - 14:53, 17 October 2024
  • Thumbnail for Lead(II) nitrate
    a number of enzymes, including δ-aminolevulinic acid dehydratase (porphobilinogen synthase) in the haem biosynthetic pathway and pyrimidine-5′-nucleotidase...
    20 KB (1,918 words) - 14:49, 4 October 2024
  • power connector The Pepsi Bottling Group (NYSE:PBG), a US company Porphobilinogen Plattsburgh International Airport in Plattsburgh, New York (IATA Code:...
    803 bytes (135 words) - 13:20, 2 June 2024