Results 61 to 70 of about 20,326,114 (289)

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Regulatory mechanisms of one-carbon metabolism enzymes

open access: yesJournal of Biological Chemistry, 2023
One-carbon metabolism is a central metabolic pathway critical for the biosynthesis of several amino acids, methyl group donors, and nucleotides. The pathway mostly relies on the transfer of a carbon unit from the amino acid serine, through the cofactor folate (in its several forms), and to the ultimate carbon acceptors that include nucleotides and ...
Boryana Petrova   +3 more
openaire   +2 more sources

One carbon metabolism in anaerobic bacteria: Regulation of carbon and electron flow during organic acid production [PDF]

open access: yes, 1992
This reporting period, progress is reported on the following: metabolic pathway of solvent production in B. methylotrophicum; the biochemical mechanism for metabolic regulation of the succinate fermentation; models to understand the physiobiochemical ...
Jain, M. K., Zeikus, J. G.
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

MASLD: insights on the role of folate in hepatic lipid metabolism

open access: yesFrontiers in Nutrition
Metabolic dysfunction-associated steatotic liver disease (MASLD) is also known as fatty liver disease associated with non-alcoholic fatty liver disease (NAFLD), which is a spectrum of chronic liver diseases characterized by steatosis, inflammation ...
Minlan Yang   +4 more
doaj   +1 more source

Creatine supplementation decreased homocysteine plasma levels in rats but not humans: A critical review with meta-analysis

open access: yesJournal of Nutrition & Intermediary Metabolism, 2016
Background: Increasing evidence has shown that an elevated a level of homocysteine (Hcy) in the blood is related to several diseases. Over the last few years, studies have demonstrated creatine (Cr) synthesis and Hcy formation are metabolically connected;
Rafael Deminice, Flávia Troncon Rosa
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

More Than a Metabolic Enzyme: MTHFD2 as a Novel Target for Anticancer Therapy?

open access: yesFrontiers in Oncology, 2020
The bifunctional methylenetetrahydrofolate dehydrogenase/cyclohydrolase (MTHFD2) is a mitochondrial one-carbon folate metabolic enzyme whose role in cancer was not known until recently. MTHFD2 is highly expressed in embryos and a wide range of tumors but
Zhiyuan Zhu, Gilberto Ka Kit Leung
doaj   +1 more source

Targeting serine-glycine-one-carbon metabolism as a vulnerability in cancers

open access: yesBiomarker Research, 2023
The serine-glycine-one-carbon (SGOC) metabolic pathway is critical for DNA methylation, histone methylation, and redox homeostasis, in addition to protein, lipid, and nucleotide biosynthesis.
Wei Sun   +6 more
doaj   +1 more source

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