dental caries/תודרנית לבנה

הקישור נשמר בלוח

מאמריםניסויים קלינייםפטנטים

בחר סוג מיון

עמוד 1 מ 69 תוצאות

Structural plasticity and functional implications of internal cavities in distal mutants of type 1 non-symbiotic hemoglobin AHb1 from Arabidopsis thaliana.

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התחבר הרשם

The increasing number of nonsymbiotic plant hemoglobins discovered in genomic studies in the past decade raises intriguing questions about their physiological role. Among them, the nonsymbiotic hemoglobin AHb1 from Arabidopsis thaliana deserves particular attention, as it combines an extremely high

The reactivity with CO of AHb1 and AHb2 from Arabidopsis thaliana is controlled by the distal HisE7 and internal hydrophobic cavities.

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התחבר הרשם

The nonsymbiotic hemoglobins, AHb1 and AHb2, have recently been isolated from Arabidopsis thaliana. Using steady-state and time-resolved spectroscopic methods, we show that Fe2+ AHb1 contains a mixture of penta- and hexacoordinated heme, while Fe2+ AHb2 is fully hexacoordinated. In the CO complexes,

Identification of novel phosphatidic acid binding domain on sphingosine kinase 1 of Arabidopsis thaliana.

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התחבר הרשם

Phosphatidic acid (PA) is an important lipid signaling molecule which interacts with Arabidopsis thaliana Sphingosine kinase1 (AtSPHK1) during several abiotic stresses particularly drought stress as a result of Abscisic acid (ABA) signaling in guard cells. PA molecules respond by generating lipid

The crystal structure of Arabidopsis thaliana allene oxide cyclase: insights into the oxylipin cyclization reaction.

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התחבר הרשם

We describe the crystallization and structure elucidation of Arabidopsis thaliana allene oxide cyclase 2 (AOC2), a key enzyme in the biosynthesis of jasmonates. In a coupled reaction with allene oxide synthase, AOC2 releases the first cyclic and biologically active metabolite, 12-oxo-phytodienoic

A novel male-sterile mutant of Arabidopsis thaliana, faceless pollen-1, produces pollen with a smooth surface and an acetolysis-sensitive exine.

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התחבר הרשם

A mutant exhibiting conditional male sterility, in which fertility was restored under conditions of high humidity, was identified in T-DNA tagged lines of Arabidopsis thaliana. Scanning electron microscopy (SEM) demonstrated that the pollen surface was almost smooth and the reticulate pattern not

Ultrastructural changes of Arabidopsis thaliana pollen during final maturation and rehydration.

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התחבר הרשם

Several ultrastructural changes occur during dehydration and subsequent rehydration of Arabidopsis thaliana pollen. The cytoplasmic channels, present in the outer part of the intine of the mature, dehydrating pollen grain, degenerate and develop into electron-dense inclusions. At the same time a

Crystal structure of the protein from Arabidopsis thaliana gene At5g06450, a putative DnaQ-like exonuclease domain-containing protein with homohexameric assembly.

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התחבר הרשם

Arabidopsis thaliana gene At5g06450 encodes a putative DnaQ-like 3'-5' exonuclease domain-containing protein (AtDECP). The DnaQ-like 3'-5' exonuclease domain is often found as a proofreading domain of DNA polymerases. The overall structure of AtDECP adopts an RNase H fold that consists of a mixed

Solution structure of Arabidopsis thaliana protein At5g39720.1, a member of the AIG2-like protein family.

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התחבר הרשם

The three-dimensional structure of Arabidopsis thaliana protein At5g39720.1 was determined by NMR spectroscopy. It is the first representative structure of Pfam family PF06094, which contains protein sequences similar to that of AIG2, an A. thaliana protein of unknown function induced upon infection

Solution structure of At3g04780.1-des15, an Arabidopsis thaliana ortholog of the C-terminal domain of human thioredoxin-like protein.

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התחבר הרשם

The structure of At3g04780.1-des15, an Arabidopsis thaliana ortholog of the C-terminal domain of human thioredoxin-like protein, was determined by NMR spectroscopy. The structure is dominated by a beta-barrel sandwich. A two-stranded anti-parallel beta-sheet, which seals off one end of the

Oxygen binding to Arabidopsis thaliana AHb2 nonsymbiotic hemoglobin: evidence for a role in oxygen transport.

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התחבר הרשם

Nonsymbiotic hemoglobins AHb1 and AHb2 discovered in Arabidopsis thaliana are likely to carry out distinct physiological roles, in consideration of their differences in sequence, structure, expression pattern, and tissue localization. Despite a relatively fast autoxidation in the presence of O(2) ,

Histidine E7 dynamics modulates ligand exchange between distal pocket and solvent in AHb1 from Arabidopsis thaliana.

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התחבר הרשם

The distal His residue in type 1 nonsymbiotic hemoglobin AHb1 from Arabidopsis thaliana plays a fundamental role in stabilizing the bound ligand. This residue might also be important in regulating the accessibility to the distal cavity. The feasibility of this functional role has been examined using

Molecular definitions of fatty acid hydroxylases in Arabidopsis thaliana.

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התחבר הרשם

Towards defining the function of Arabidopsis thaliana fatty acid hydroxylases, five members of the CYP86A subfamily have been heterologously expressed in baculovirus-infected Sf9 cells and tested for their ability to bind a range of fatty acids including unsubstituted (lauric acid (C12:0) and oleic

Crystal structure of cryptochrome 3 from Arabidopsis thaliana and its implications for photolyase activity.

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התחבר הרשם

Cryptochromes use near-UV/blue light to regulate a variety of growth and adaptive process. Recent biochemical studies demonstrate that the Cryptochrome-Drosophila, Arabidopsis, Synechocystis, Human (Cry-DASH) subfamily of cryptochromes have photolyase activity exclusively for single-stranded

Deciphering the Binding of Salicylic Acid to Arabidopsis thaliana Chloroplastic GAPDH-A1

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התחבר הרשם

Salicylic acid (SA) has an essential role in the responses of plants to pathogens. SA initiates defence signalling via binding to proteins. NPR1 is a transcriptional co-activator and a key target of SA binding. Many other proteins have recently been shown to bind SA. Amongst these proteins

Three-dimensional structure of glutathione S-transferase from Arabidopsis thaliana at 2.2 A resolution: structural characterization of herbicide-conjugating plant glutathione S-transferases and a novel active site architecture.

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התחבר הרשם

Glutathione S-transferases (GST) are a family of multifunctional enzymes involved in the metabolization of a broad variety of xenobiotics and reactive endogenous compounds. The interest in plant glutathione S-transferases may be attributed to their agronomic value, since it has been demonstrated

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Herbal & Natural Medicine

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