Porphyrinogens. Medical search. Web

The desired porphyrinogens (n = 4) can then be separated. Meso-substituted porphyrinogens with eight non-hydrogen side chains ... In biochemistry a porphyrinogen is a member of a class of naturally occurring compounds with a tetrapyrrole core, a macrocycle ... Porphyrinogens are intermediates in the biosynthesis of porphyrins, cofactors with a porphine core which are found in many ... Porphyrins differ from porphyrinogens by having the four pyrrole rings linked by methine bridges =CH− instead of methylene ...

https://en.wikipedia.org/wiki/Porphyrinogen

Thin films of meso-octaethylporphyrinogen with different thickness were deposited on suitable substrates by Langmuir-Blodgett deposition technique in order to realize optical-sensitive active layers using Surface Plasmon Resonance (SPR) technique as transduction methodology. Analysis of the morphology of the sensing layers was performed by Atomic Force Microscopy. In particular, such coatings were tested for the detection of alcohol vapors such as ethanol, methanol and isopropanol. This resulted in a reversible shift in the resonance depth and angular position of the SPR curves, depending on the interactions between the sensing layers and the alcohol vapor molecules. Different sensitivity and rate of response for different alcohol molecules were found and analyzed. Measurements of the sensing response towards successive expositions of the sensing layers to methanol, ethanol and isopropanol vapors ...

https://www.imm.cnr.it/node/32337

... porphyrinogen carboxylase; Carboxy-Lyases; Erythrocytes; Female; Human; Male; Porphyria; Porphyrinogens; Support, Non-U.S. ... Del C. Ríos de Molina, M.; de Calmanovici, R.W.; Grinstein, M.; de Viale, L.C.S.M. Erythrocyte porphyrinogen carboxy-lyase ... Red cell porphyrinogen carboxy-lyase activity was measured using uroporphyrinogen III as substrate in 18 normal persons, 7 male ... Del C. Ríos de Molina, M., de Calmanovici, R.W., Grinstein, M., de Viale, L.C.S.M. Erythrocyte porphyrinogen carboxy-lyase ...

https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00098981_v108_n3_p447_DelCRiosdeMolina

... isomer I porphyrinogens that cannot be used to form heme may be overproduced. The accumulated isomer I porphyrinogens are ... III synthase in erythrocyte precursor cells causes a shift of the pathway away from the isomer III porphyrinogen production ...

https://emedicine.medscape.com/article/1103274-overview

Catalytic epoxidation of alkenes by the manganese complex of a reduced porphyrinogen macrocycle Adv. Synth. Cat. 354, 428-440 ...

https://www.nottingham.ac.uk/Engineering/People/anca.pordea

Keywords: AROMATIC-COMPOUNDS, PYRIDINE, PORPHYRINOGEN, CYCLOARENES, KEKULENE Learn more about Chemistry research ...

https://eprints.soton.ac.uk/15731/

... nary porphyrinogens after 1 h. Recently, it has been demonstrated that a (United Kingdom) has donated extremely potent and ...

https://www.ehd.org/pregnancy-calendar/calendar.php?id=14354&week=12&comment_sort=&comment_p=5866

Production of the initial porphyrinogen ring is catalyzed by what enzyme? A. uroporphyrinogen III synthase B. porphobilinogen ...

https://www.brainscape.com/flashcards/lecture-34-amino-acid-metabolism-ii-4534488/packs/6085123

Substrates for the deficient enzyme, which are porphyrinogens (reduced porphyrins), accumulate in the liver, are oxidized to ...

https://bestpractice.bmj.com/topics/en-us/234

Porphyrinogen Complexes of the ?-bound Auxiliary Ligands Cyclopentadienyl and Cyclooctatetraenediyl , Organometallics, vol. 26 ...

https://eprints.utas.edu.au/view/authors/Yates=3ABF=3A=3A.html

Catalytic Epoxidation of Alkenes by the Manganese Complex of a Reduced Porphyrinogen Macrocycle. ...

https://libra.unine.ch/entities/person/19dc86a4-ef88-454a-9000-6ba79bbc86b6/details?f.itemtype=journal%20article,equals&spc.page=1&view=grid

Some intermediates are porphyrinogens (reduced porphyrins); these are excreted and measured mostly as oxidized porphyrins. A ...

https://porphyriafoundation.org/for-patients/about-porphyria/testing-for-porphyria/sensitivity-specificity-of-tests-for-porphyria/

MS = Porphyrinogens which are intermediates in heme biosynthesis. They have four acetic acid and four propionic acid side ...

http://www.doctorinternet.com/public/4-glossary/mesh-u.html

","porphyrinogen oxidase, cytoplasmic [Ensembl]. Dyp-type peroxidase family [Interproscan].","protein_coding" "AAC75676","abpA ...

https://bacteria.sbs.ntu.edu.sg/go/sequences/table/14301

Heme synthesis requires 8 enzymes (see table ). These enzymes produce and transform molecular species called porphyrinogens or ... Discoloration results from oxidation of the porphyrinogens to their corresponding porphyrins, the porphyrin precursor ...

https://www.msdmanuals.com/professional/endocrine-and-metabolic-disorders/porphyrias/overview-of-porphyrias

Porphyrinogen in the Synthesis of Tetrakis(cyclohexyl)porphyrinogenCu(III) Anion"। Inorganic Chemistry (ইংরেজি ভাষায়)। 47 (12 ...

https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A6%AC%E0%A7%8D%E0%A6%AF%E0%A6%B8%E0%A6%BE%E0%A6%9A%E0%A7%80_%E0%A6%B8%E0%A6%B0%E0%A6%95%E0%A6%BE%E0%A6%B0

Oxidation of the abnormally elevated porphyrinogens results in elevated urinary levels of total porphyrins, ... Mercury specifically inhibits two enzymes in porphyrinogen metabolism-uroporphyrinogen decarboxylase and coproporphyrinogen ... porphyrins are oxidized intermediate metabolites of heme biosynthesis and are readily excreted in excess when porphyrinogens ...

https://www.scimedicahealth.com/treatments/advanced-therapies/

The Escherichia coli Protein YfeX Functions as a Porphyrinogen Oxidase, Not a Heme Dechelatase. MBio. 2011;8;2. PMID: 22068980 ...

https://www.porphyria.org/research/publications/

... also urine examination did not reveal the presence of porphyrinogen or porphyrin in the welders ...

https://search.bvsalud.org/aimafro/?lang=en&q=mh:Hematologic+Tests

Ground- and excited-state reactivity of iron porphyrinogens. Bachmann, Julien; Hodgkiss, Justin M; Young, Elizabeth R; Nocera, ... The iron(II) porphyrinogen dication, [LDeltaDeltaFeII]2+, is a multielectron oxidant featuring the metal center in its reduced ... states are consistent with extensive structural reorganization that accompanies charge-transfer excitation of the porphyrinogen ...

https://pesquisa.bvsalud.org/controlecancer/?lang=pt&q=au:Hodgkiss,+Justin

Dixon DP, Lapthorn A, Madesis P, Mudd EA, Day A, Edwards R: Binding and glutathione conjugation of porphyrinogens by plant ...

https://www.sesamothisis.gr/erevnitiki-omada/dr-madesis-panagiotis/