Results 1 to 10 of about 999,429 (336)

The ferroelectric Mott-Hubbard phase of organic (TMTTF)2X conductors [PDF]

open access: yes, 2000
We present experimental evidences for a ferro-electric transition in the family of quasi one- dimensional conductors (TMTTF)2X. We interpret this new transition in the frame of the combined Mott-Hubbard state taking into account the double action of the ...
C. Coulon   +19 more
core   +3 more sources

Structural characterization of borneol dehydrogenase from Pseudomonas sp. TCU‐HL1

open access: yesActa Crystallographica Section F, Volume 76, Issue 7, Page 309-313, July 2020., 2020
The structure of a Pseudomonas borneol dehydrogenase was determined at 1.84 Å resolution. Major differences from its homologues in the C‐terminal helices and the associated loops may suggest determinants for substrate recognition.During the microbial degradation of borneol, a bicyclic plant monoterpene, it is first converted into camphor by borneol ...
Aye Aye Khine   +3 more
wiley   +1 more source

A novel deamido-NAD+-binding site revealed by the trapped NAD-adenylate intermediate in the NAD+ synthetase structure [PDF]

open access: yesStructure, 1998
Nicotinamide adenine dinucleotide (NAD+) has a central role in life processes. The ubiquitous enzyme NAD+ synthetase catalyzes a key step in NAD+ biosynthesis, transforming deamido-NAD+ into NAD+ by a two-step reaction. NAD+ synthetase belongs to the amidotransferase family and has been recognized as a member of the family of N-type ATP ...
RIZZI, Menico, BOLOGNESI M., CODA A.
openaire   +3 more sources

Adiabaticity and gravity theory independent conservation laws for cosmological perturbations [PDF]

open access: yes, 2016
We carefully study the implications of adiabaticity for the behavior of cosmological perturbations. There are essentially three similar but different definitions of non-adiabaticity: one is appropriate for a thermodynamic fluid $\delta P_{nad}$, another ...
Mooij, Sander   +2 more
core   +3 more sources

Evolutionary Views of Tuberculosis: Indoleamine 2,3‐Dioxygenase Catalyzed Nicotinamide Synthesis Reflects Shifts in Macrophage Metabolism

open access: yesBioEssays, Volume 42, Issue 5, May 2020., 2020
Classically activated macrophages upregulate Warburg‐like metabolism while alternatively activated M2 macrophages utilize the Krebs cycle and oxidative phosphorylation. M2 macrophages upregulate indoleamine 2,3‐dioxygenase for de novo nicotinamide adenine dinucleotide (NAD) synthesis.
Melinda S. Suchard   +3 more
wiley   +1 more source

Vitamins Reverse Endothelial Dysfunction Through Regulation of eNOS and NAD(P)H Oxidase Activities [PDF]

open access: yes, 2003
Antioxidant vitamins C and E have protective properties in genetic hypertension associated with enhanced oxidative stress. This study investigated whether vitamins C and/or E modulate vascular function by regulating enzymatic activities of endothelial ...
Bayraktutan, Ulvi   +2 more
core   +2 more sources

NAD+-dependent DNA ligases of Mycobacterium tuberculosis and Streptomyces coelicolor [PDF]

open access: yes, 2003
Sequencing of the genomes of Mycobacterium tuberculosis H37Rv and Streptomyces coelicolor A3(2) identified putative genes for an NAD+-dependent DNA ligase. We have cloned both open reading frames and overexpressed the protein products in Escherichia coli.
Bowater, Richard   +6 more
core   +1 more source

A novel fluorescent probe for NAD-consuming enzymes [PDF]

open access: yes, 2011
A novel, fluorescent NAD derivative is processed as substrate by three different NAD-consuming enzymes. The new probe has been used to monitor enzymatic activity in a continuous format by changes in fluorescence and, in one case, to directly visualize ...
Barrio   +37 more
core   +1 more source

Impurity effect on low-temperature polarisation of the charge-density-waves in o-TaS$_3$

open access: yes, 1998
The temperature dependence of the low-temperature dielectric response is studied in o-TaS$_3$ samples doped by Nb, Se, and Ni and for nominally pure ones.
Baklanov   +21 more
core   +1 more source

Pathway analysis of NAD+ metabolism [PDF]

open access: yesBiochemical Journal, 2011
NAD+ is well known as a crucial cofactor in the redox balance of metabolism. Moreover, NAD+ is degraded in ADP-ribosyl transfer reactions, which are important components of multitudinous signalling reactions. These include reactions linked to DNA repair and aging.
Toni I. Gossmann   +5 more
openaire   +5 more sources

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