Results 51 to 60 of about 20,574 (176)

Constructing and testing the thermodynamic limits of synthetic NAD(P)H:H-2 pathways [PDF]

open access: yes, 2008
NAD(P)H:H(2) pathways are theoretically predicted to reach equilibrium at very low partial headspace H(2) pressure. An evaluation of the directionality of such near-equilibrium pathways in vivo, using a defined experimental system, is therefore important
Akhtar   +56 more
core   +1 more source

Complementary Muscle Metabolomics and Proteomics of Muscle in Cows With Post‐Calving Ketosis

open access: yesJournal of Veterinary Internal Medicine, Volume 39, Issue 6, November/December 2025.
ABSTRACT Background The muscle tissue of dairy cows is a site of β‐hydroxybutyrate (BHBA) metabolism. The mechanisms underlying the changes in proteins and metabolites in the muscle tissue of cows with ketosis remain unclear. Objectives To elucidate the metabolic and physiological molecular adaptation mechanisms in the muscle tissue of cows with ...
Tao Tang   +8 more
wiley   +1 more source

The Role of the [2Fe‐2S] Cluster of Escherichia coli IscR in Responding to Redox‐Cycling Agents

open access: yesMolecular Microbiology, Volume 124, Issue 5, Page 433-448, November 2025.
Redox cycling agents like phenazine methosulfate (PMS) are known for upsetting cellular redox balance. Here we describe how PMS leads to upregulation of the ISC and SUF Fe‐S cluster biogenesis pathways in Escherichia coli when PMS oxidizes the [2Fe‐2S]1+ cluster of the transcription factor IscR, thereby derepressing the operon encoding ISC and, when a ...
Rajdeep Banerjee   +3 more
wiley   +1 more source

Hydrogen‐Producing Catalysts Based on Ferredoxin Scaffolds

open access: yesAdvanced Science, Volume 12, Issue 33, September 4, 2025.
Selected plant‐type ferredoxins that lack their natural [2Fe‐2S] clusters functionally bind a hydrogenase active site cofactor and act as hydrogenases themselves. In combination with photosystem I, the light‐dependent H₂ evolution almost matches the H₂ production rates of the natural system.
Yiting She   +6 more
wiley   +1 more source

Large D/H variations in bacterial lipids reflect central metabolic pathways [PDF]

open access: yes, 2009
Large hydrogen-isotopic (D/H) fractionations between lipids and growth water have been observed in most organisms studied to date. These fractionations are generally attributed to isotope effects in the biosynthesis of lipids, and are frequently assumed ...
Gillespie, Aimee L.   +2 more
core   +2 more sources

Die Funktion des Responseregulators ARR2 in der Entwicklung von Arabidopsis thaliana [PDF]

open access: yes, 2004
In dieser Arbeit konnte mittels physiologischer Experimente, Expressionsanalysen, Phosphorylierungsassays und Transaktivierungsanalysen eine komplexe Funktion von ARR2 in verschiedenen Signaltransduktionswegen von Arabidopsis aufgedeckt werden.
Haß, Claudia
core  

Global transcriptome analysis of AtPAP2--overexpressing Arabidopsis thaliana with elevated ATP [PDF]

open access: yes, 2013
BACKGROUND: AtPAP2 is a purple acid phosphatase that is targeted to both chloroplasts and mitochondria. Over-expression (OE) lines of AtPAP2 grew faster, produced more seeds, and contained higher leaf sucrose and glucose contents. The present study aimed
Liang, C   +5 more
core   +2 more sources

Coordinated transcriptional regulation between a reactive oxygen species-responsive gene network and the circadian clock in Arabidopsis thaliana : a thesis presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Plant Biology at Massey University, Plant Biology, New Zealand [PDF]

open access: yes, 2012
Most organisms have evolved endogenous biological clocks as internal timekeepers to fine-tune physiological processes to the external environment. Energetic cycles such as photosynthesis and glycolytic cycles are physiological processes that have ...
Lai, Alvina Grace
core  

A Photoenzymatic NADH regeneration system [PDF]

open access: yes, 2018
A photoenzymatic NADH regeneration system was established. The combination of deazariboflavin as a photocatalyst with putidaredoxin reductase enabled the selective reduction of NAD+ into the enzyme‐active 1,4‐NADH to promote an ...
Asada   +23 more
core   +1 more source

CyanoNews (Vol. 11, No. 1, February 1995) [PDF]

open access: yes, 1995
CyanoNews was a newsletter that served the cyanobacteriological community from 1985 to 2003, with content provided by readers (sort of a blog before there were blogs). The newsletter reported new findings from the lab, summaries of recent meetings (often
Elhai, Jeff
core   +1 more source

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