protoporphyrinogen

protoporphyrinogen

/pro·to·por·phy·rin·o·gen/ (-por″fĭ-rin´ŏ-jen) any of fifteen isomers of a porphyrinogen derivative, one of which is an intermediate produced from coproporphyrinogen in heme synthesis.
References in periodicals archive ?
1996), and Protoporphyrinogen oxidase (PPO) inhibitors (Shoup et al.
The herbicide saflufenacil inhibits the enzyme protoporphyrinogen oxidase (Protox) by systemic and residual activity and was developed for the control of dicotyledonous weeds (Badische Anilin and Soda Fabrik [BASF], 2008).
The other 2 acute porphyrias arise from deficiencies later in the pathway: coproporphyrinogen oxidase in hereditary coproporphyria (HCP) and protoporphyrinogen oxidase in variegate porphyria (VP).
4] During an acute attack, haem precursors accumulate in front of the deficient enzyme, which in AIP is porphobilinogen deaminase and in VP protoporphyrinogen oxidase.
Saflufenacil: Biokinetic properties and mechanism of selectivity of a new protoporphyrinogen IX oxidade inhibiting herbicide.
Oratio###Carfentrazone-ethyl###Triazolinone###Inhibition of protoporphyrinogen oxidase (PPO)###E/14
5 mouse protoporphyrinogen oxidase Al176856 Cytochrome P450 1b1 1.
The tolerance of crops to herbicides that inhibit the enzyme protoporphyrinogen oxidase (PROTOX) depends on herbicide detoxification by the plants or on their ability to mitigate the oxidative stress induced by these compounds (GEOFFROY et al.
Oxidation of protoporphyrinogen to protoporphyrin, a step in chlorophyll and haem biosynthesis.
Plasma fluorescence scanning and fecal porphyrin analysis for the diagnosis of variegate porphyria: precise determination of sensitivity and specificity with detection of protoporphyrinogen oxidase mutations as a reference standard.
That VP is related causally to deficient activity in the penultimate enzyme of the haem biosynthetic pathway, protoporphyrinogen oxidase (PPOX), was first shown by Brenner and Bloomer in 1980.
This has traditionally depended on analysis of metabolites in urine and feces with, more recently, measurement of protoporphyrinogen oxidase when these are uninformative.