On porphyrin esterification and ester hydrolysis. Studies on esterification of natural animal porphyrins with various alcohols and the acid hydrolysis of their esters.
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Acetone↗
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Porphyrin distribution and porphyrin excretion in human congenital erythropoietic porphyria.
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Bone Marrow↗
Cytochrome C and the porphyrin-peptides. II. Observations on the binding of 14 C-labelled porphyrins by human plasma proteins.
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Autoradiography↗
Esterification of porphyrins and hydrolysis of porphyrin esters.
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1-Propanol↗
Preparation of crystalline porphyrin esters and free porphyrins from natural products.
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Animals↗
Conventional and preparative electrophoretic separation of some urinary porphyrins and porphyrin precursors.
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Amino Acids↗
Griseofulvin and porphyrin metabolism. Special reference to normal fecal porphyrin excretion.
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Adolescent↗
[Normal values for the concentrations of porphyrins and porphyrin precursors].
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Amino Acids↗
[Study of urinary porphyrin and its precursors in children. 1. Fractionation of porphyrin by ion exchange resin column chromatography].
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Child↗
[Study of urinary porphyrin and its precursors in children. 3. Fluctuation of urinary porphyrin and its precursors and its correlation with physiological anemia in the newborn and infants].
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Anemia, Neonatal↗
Microfluoroscopic studies on porphyrins in Harder's gland and in tumors induced in it. 3. Histotopography of porphyrins and growth of transplanted sarcoma in Harder's gland in white rats.
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Animals↗
Porphyrins and porphyrias: ethiopathogenesis, clinics and treatment. (Proceedings of the First Internatinal Argentine Meeting on Porphyrins and Porphyrias held at the University of Buenos Aires, Argentina, 28 October-1 November, 1979).
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Animals↗
Regulation of porphyrin biosynthesis in yeast. Level of delta-aminolevulinic acid in porphyrin mutants of Saccharomyces cerevisiae.
Saccharomyces cerevisiae mutants bearing mutations at the cyc4 locus are partially deficient in cytochrome synthesis. Although the mutation is not in the structural gene for delta-aminolevulinic acid (Alv) synthase, the mutants are deficient in Alv synthesis in vivo as indicated by abnormally low intracellular Alv concentrations. The cyc4 mutation causes cells to grow very slowly in minimal glucose medium, but not in yeast extract-peptone-glucose medium. A simple nutritional defect caused by the cyc4 mutation is not involved because cytochrome deficiency is enhanced by growing cyc4 cells in yeast extract-peptone medium. A regulatory role for CYC4 is indicated. Evidence for negative feed-back control of Alv synthase by heme is provided by the observation of enhanced intracellular Alv accumulation in yeast mutants partially deficient in decarboxylation of uroporphyrinogen and coproporphyrinogen, respectively.
5-Aminolevulinate Synthetase↗
The adsorption of porphyrins and porphyrin precursors by sorbents: a potential therapy for the porphyrias.
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Adsorption↗
In vitro studies of the metabolic pathway from 8-COOH porphyrins to 4-COOH porphyrins.
The authors report the experiments about incubation of uroporphyrinogen with sonified fibroblasts of normal individuals and prophyrics and present the hypothesis of the absence of deficiency in the activity of uroporphyrinogendecarboxylase.
Coproporphyrinogens↗
Facile Synthesis of beta-Derivatized Porphyrins-Structural Characterization of a beta - beta-Bis-Porphyrin Financial support for this work was provided by the National Institutes of Health (GM 47274). The authors would like to thank William Cieslik from Hamamatsu Corporation for providing a C4334-0 Streak Camera for luminescence lifetime measurements and Alan Heyduk for assistance with the X-ray crystal structure determination.
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Journal Article↗
Remarkable Anionic Axial Ligand Effects of Iron(III) Porphyrin Complexes on the Catalytic Oxygenations of Hydrocarbons by H(2)O(2) and the Formation of Oxoiron(IV) Porphyrin Intermediates by m-Chloroperoxybenzoic Acid This work was supported by Center for Cell Signaling Research (1999-2-122-002-4), the Korean Research Foundation (KRF-99-042-D00068), and the MOST through the Women's University Research Fund (99-N6-01-01-A-07).
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Journal Article↗
Porphyrin supermolecules: synthesis and self-assembly features of zinc-5-(3'-pyridyl)-10,15,20-tris(4'-hydroxyphenyl)porphyrin.
Targeted synthesis of the title compound, with one converging coordination site and three diverging H-bonding sites, has led to the formation of multiporphyrin oligomers by directed intermolecular coordination, without resorting to external auxiliaries. A uniquely structured cyclic tetraporphyrin supermolecule was detected in solution, isolated in the solid state, and characterized in detail by X-ray diffraction.
Crystallography, X-Ray↗