Results 171 to 180 of about 12,819 (218)
The retrograde signaling protein GUN1 regulates tetrapyrrole biosynthesis [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2019 The biogenesis of the photosynthetic apparatus in developing seedlings requires the assembly of proteins encoded on both nuclear and chloroplast genomes.
Takayuki Shimizu +2 more
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Metamorphosis of Tetrapyrrole Macrocycles
ChemInform, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mathias O, Senge, Natalia N, Sergeeva
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Induced Deactivation of Genes Encoding Chlorophyll Biosynthesis Enzymes Disentangles Tetrapyrrole-Mediated Retrograde Signaling [PDF]
Molecular Plant, 2014 In photosynthetic organisms, tetrapyrrole-mediated retrograde signals are proposed to contribute to a balanced nuclear gene expression (NGE) in response to metabolic activity in chloroplasts.
Hagen Schlicke +2 more
exaly +3 more sources
Tetrapyrrole Biosynthesis in Higher Plants
Annual Review of Plant Biology, 2007Tetrapyrroles play vital roles in various biological processes, including photosynthesis and respiration. Higher plants contain four classes of tetrapyrroles, namely, chlorophyll, heme, siroheme, and phytochromobilin. All of the tetrapyrroles are derived from a common biosynthetic pathway. Here we review recent progress in the research of tetrapyrrole
Ryouichi, Tanaka, Ayumi, Tanaka
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A reaction of the superoxide radical with tetrapyrroles
Archives of Biochemistry and Biophysics, 1982Bilirubin and biliverdin were bleached during exposure to the aerobic xanthine oxidase reaction. Enzymic scavenging of O2−, by Superoxide dismutase, inhibited, whereas enzymic scavenging of H2O2, by catalase, did not. Increasing the rate of production of O2− without increasing the turnover rate of xanthine oxidase, by increasing pO2, accelerated the ...
P, Robertson, I, Fridovich
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Chiral Sensing by Nonchiral Tetrapyrroles
Accounts of Chemical Research, 2015Enantiomeric excess (ee) is a measure of the purity of an enantiomer of a chiral compound with respect to the presence of the complementary enantiomer. It is an important aspect of chemistry, especially in the fields of pharmaceuticals and asymmetric catalysis. Existing methods for determination of enantiomeric excesses using nuclear magnetic resonance
Jan, Labuta +4 more
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Naturally Occurring Cyclic Tetrapyrroles
2002Of the porphyrinoid structures occurring in nature the most important and most widespread are the red blood pigment heme (1), the green pigment of plant photosynthesis chlorophyll a (2), the bacterial photo-synthetic pigment bacteriochlorophyll a (3), and the “antipernicious” red pigment vitamin B12 (4).
F P, Montforts, M, Glasenapp-Breiling
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Glycoconjugated tetrapyrrolic macrocycles
Journal of the American Chemical Society, 1989Preparation de porphyrine ou de phtalocyanine metalliques substituees par le glucose a partir de la condensation du tetraacetyl β-D-glucose-2 benzaldehyde avec le ...
Philippe Maillard +3 more
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2003
This chapter addresses basic methodology that can be used to obtain tetrapyrrole macrocycles in the porphyrin and chlorin series from natural materials and some simple methods for the total chemical synthesis of typical pyrroles and porphyrins. The aim is to provide investigators with enough information to decide whether to take on the task of ...
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This chapter addresses basic methodology that can be used to obtain tetrapyrrole macrocycles in the porphyrin and chlorin series from natural materials and some simple methods for the total chemical synthesis of typical pyrroles and porphyrins. The aim is to provide investigators with enough information to decide whether to take on the task of ...
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(Invited) Charge Separation in Tetrapyrrole-Graphene and Tetrapyrrole-Slgo-Fullerene Hybrids
ECS Meeting Abstracts, 2013Abstract not Available.
F. D'Souza +4 more
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