Results 71 to 80 of about 6,613 (229)

Insight into the molecular mechanisms of leaf coloration in Cymbidium ensifolium

open access: yesFrontiers in Genetics, 2022
Cymbidiumensifolium L. is a significant ornamental plant in Orchidaceae. Aside from its attractive flowers, its leaf coloration is also an important ornamental trait.
Hua Cao   +9 more
doaj   +1 more source

Cobalamin‐Dependent Aryl Methyl Ether O‐Demethylases: Promising Enzymes for Biocatalytic Applications from Lignin Valorization to Organic Synthesis

open access: yesChemCatChem, Volume 17, Issue 21, November 10, 2025.
Cobalamin‐dependent aryl methyl ether O‐demethylases have high potential for biocatalytic applications, including lignin valorization and synthetic chemistry. In this review, we provide a detailed overview of such O‐demethylase systems identified to date from various microorganisms, including their mechanism, substrate scope and selectivity, and ...
Niels Krabbe Johnsen   +4 more
wiley   +1 more source

Iron physiology and metabolism of model phytoplankton taxa in a western boundary continental shelf ecosystem

open access: yesLimnology and Oceanography, Volume 70, Issue 11, Page 3335-3354, November 2025.
Abstract Continental shelf ecosystems support diverse phytoplankton communities that contribute to global primary productivity. Iron is an important micronutrient controlling the growth of marine phytoplankton, but its role in influencing phytoplankton ecophysiology in western boundary continental shelf ecosystems is understudied.
Lucy E. Quirk   +2 more
wiley   +1 more source

Structural and Functional Characterization of a Short-Chain Flavodoxin Associated with a Noncanonical 1,2-Propanediol Utilization Bacterial Microcompartment.

open access: greenBiochemistry, 2017
J. Plegaria   +10 more
semanticscholar   +3 more sources

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

Active photosynthetic inhibition mediated by MPK3/MPK6 is critical to effector-triggered immunity. [PDF]

open access: yesPLoS Biology, 2018
Extensive research revealed tremendous details about how plants sense pathogen effectors during effector-triggered immunity (ETI). However, less is known about downstream signaling events.
Jianbin Su   +8 more
doaj   +1 more source

A new tool for engineering Phaeodactylum tricornutum: the METE promoter drives both high expression and B12‐tuneable regulation of transgenes

open access: yesThe Plant Journal, Volume 124, Issue 2, October 2025.
Significance Statement The promoter of the METE gene in the diatom Phaeodactylum tricornutum is repressed by nanomolar concentrations of vitamin B12. It can be used to tune the expression of genes for reporter proteins or metabolic enzymes and in the non‐permissive state (i.e., +B12) can suppress the expression of the lethal gene, barnase.
Patrick R. Hickland   +8 more
wiley   +1 more source

Reconstructing the Remote Origins of a Fold Singleton from a Flavodoxin-Like Ancestor

open access: yesBiochemistry, 2019
Evolutionary processes that led to the emergence of structured protein domains left footprints in the sequences of modern proteins. We searched for such hints employing state-of-the-art sequence analysis and found evidence that the HemD-like fold emerged
S. Toledo-Patiño   +3 more
semanticscholar   +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

Unraveling the interactions of the physiological reductant flavodoxin with the different conformations of the Fe protein in the nitrogenase cycle

open access: yesJournal of Biological Chemistry, 2017
Nitrogenase reduces dinitrogen (N2) to ammonia in biological nitrogen fixation. The nitrogenase Fe protein cycle involves a transient association between the reduced, MgATP-bound Fe protein and the MoFe protein and includes electron transfer, ATP ...
N. Pence   +6 more
semanticscholar   +1 more source

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