porphobilinogen

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porphobilinogen /por·pho·bi·lin·o·gen/ (por″fo-bĭ-lin´ah-jin) an intermediary product in the biosynthesis of heme; it is produced in excess and excreted in the urine in acute intermittent porphyria.

por·pho·bi·lin·o·gen (pôr

-b

-l

-j

n, -j

)

n. Abbr. PBG

A porphyrin precursor found in large quantities in the urine in cases of acute or congenital porphyria.

porphobilinogen

[pôr′fōbilin′əjən]

a chromogen substance that is an intermediate in the biosynthesis of heme and porphyrins. It appears in the urine of people with porphyria, representing an error of metabolism. See also heme, porphyria.

porphobilinogen [por″fo-bĭ-lin´o-jen]

an intermediary product in the biosynthesis of heme.

porphobilinogen

an intermediary product in the biosynthesis of heme. Not detectable in normal animals.

porphobilinogen deaminase

an enzyme involved in the condensation of porphobilinogen. Now called uroporphyrinogen I synthetase.

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acute intermittent porphyria aminolevulinate dehydratase aminolevulinic acid 1 CEP congenital erythropoietic porphyria coproporphyria erythropoietic porphyria heme hepatic porphyria hepatoerythropoietic porphyria hereditary coproporphyria intermittent acute porphyria PBG PBG-D porphobilinogen synthase porphyria porphyria cutanea tarda Porphyrias porphyrins and porphobilinogens test			porphyrin metabolism) result in the overproduction and accumulation of porphyrins (uroporphyrins, coproporphyrins, and protoporphyrins) or porphyrin precursors (delta-aminovelulinic acid [ALA] and porphobilinogen [PBG]). Environmental factors promoting induced pophyria diseases by Nesbitt, Joelyn N.; Schlautman, Mark A.; Carraway, Elizabeth R.; Lee, Ji H. / Bulletin of the South Carolina Academy of Science			porging poriomania porion pork Pork Barrel Funding pork tapeworm pork tapeworm infection porker PORN Porn Addiction pornography poro- porocele Porocephalus poroconidia porokeratosis poroma poroporo porosis porosity porotic dentin porotomy porous porphin porphobilin porphobilinogen porphobilinogen synthase porphynuria porphyria porphyria cutanea tarda porphyria, congenital porphyria, erythropoietic porphyria, photosensitive Porphyrias porphyrin porphyrinogen porphyrins and porphobilinogens test porphyrinuria Porphyromonas porphyropsin porpoise porrigo Porrocaecum Porsche Girl Port Port Pirie Cohort Study port site metastasis Port Wine Nevus Port Wine Urine Port-A-Cath port-access cardiopulmonary bypass			porously porously porousness porousness porousness porousness Poroxylaceae Porozhskii Porozovo Porozumienie Polskie Porozumienie Ziemi Krasnostawskiej PORP POrPA Porpentine Porpesse porpezite Porphilia Porphilia Porphilia porphin porphin Porphine Porphine Porphiria Porphiria Porphiria Porphirine Porphirine Porphirine porphobilin porphobilinogen Porphobilinogen deaminase Porphobilinogen deaminase Porphobilinogen synthase porphrite porphynuria Porphyra Porphyra Porphyra Water-Soluble Fraction Porphyraceous Porphyre porphyria porphyria porphyria porphyria cutanea tarda porphyria cutanea tarda porphyria cutanea tarda porphyria cutanea tarda Porphyria cutanea tarda, familial type Porphyria cutanea tarda, sporadic type Porphyria variegata Porphyria variegata Porphyria variegata Porphyria, acute intermittent Porphyria, Chester Type porphyria, congenital Porphyria, erythropoietic Porphyria, hepatic Porphyria, hepatoerythropoietic porphyria, photosensitive Porphyria, variegate

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