Results 1 to 10 of about 1,044 (186)

Transcriptomic analysis reveals pathways underlying the multi‐antibiotic resistance of Klebsiella pneumoniae [PDF]

open access: yesIET Systems Biology
Klebsiella pneumoniae, an opportunistic pathogen, is pervasively distributed across the world. Its escalating antibiotic resistance poses a serious threat to global public health. The mechanisms behind this resistance remain largely elusive.
Ying Liu   +6 more
doaj   +2 more sources

Editorial for Special Issue "Antiprotozoal Activity of Natural Products" [PDF]

open access: yesAntibiotics (Basel), 2023
Neglected tropical diseases (NTDs), a group of diverse infectious diseases, repre-sent the leading cause of morbidity and mortality among the world's low-income pop-ulations.
Cecilia Baldassarri   +5 more
core   +2 more sources

Formylation of tetrahydrofolate by formyl phosphate [PDF]

open access: yesFEBS Letters, 1990
Formyl phosphate is the putative intermediate in the formylation of tetrahydrofolate (THF) catalyzed by N10‐formylTHF synthetase. In this study the non‐enzymic reaction between formyl phosphate and THF was examined at 5°C. 1H‐NMR, HPLC and kinetic analysis of the proton‐catalyzed conversion of the product to N5,10‐methenylTHF were used to identify the ...
Jahansouz, Hossain   +2 more
openaire   +2 more sources

Macrophage adaptation leads to parallel evolution of genetically diverseEscherichia colismall-colony variants with increased fitness in vivo and antibiotic collateral sensitivity [PDF]

open access: yes, 2016
Small-colony variants (SCVs) are commonly observed in evolution experiments and clinical isolates, being associated with antibiotic resistance and persistent infections.
Costa, Henrique   +2 more
core   +2 more sources

Efecto de la suplementación con vitaminas del complejo B sobre el declive cognitivo en pacientes con enfermedad de Alzheimer. Revisión sistemática y metanálisis [PDF]

open access: yes, 2023
Introduction: Cognitive decline is a marker for the onset and progression of Alzheimer's disease (AD). Currently, modification of risk factors, such as nutrition, are promising for the treatment of AD.
Corredor, Valentina   +6 more
core   +2 more sources

In Vivo Rate of Formaldehyde Condensation with Tetrahydrofolate [PDF]

open access: yesMetabolites, 2020
Formaldehyde is a highly reactive compound that participates in multiple spontaneous reactions, but these are mostly deleterious and damage cellular components. In contrast, the spontaneous condensation of formaldehyde with tetrahydrofolate (THF) has been proposed to contribute to the assimilation of this intermediate during growth on C1 carbon sources
He, Hai   +7 more
openaire   +7 more sources

Application of a Colorimetric Assay to Identify Putative Ribofuranosylaminobenzene 5'-Phosphate Synthase Genes Expressed with Activity in Escherichia coli

open access: yesBiological Procedures Online, 2003
Tetrahydromethanopterin (H4MPT) is a tetrahydrofolate analog originally discovered in methanogenic archaea, but later found in other archaea and bacteria. The extent to which H4MPT occurs among living organisms is unknown.
Bechard Matthew E.   +3 more
doaj   +1 more source

Toward eradication of B-vitamin deficiencies : considerations for crop biofortification [PDF]

open access: yes, 2018
'Hidden hunger' involves insufficient intake of micronutrients and is estimated to affect over two billion people on a global scale. Malnutrition of vitamins and minerals is known to cause an alarming number of casualties, even in the developed world ...
Strobbe, Simon   +1 more
core   +3 more sources

MTHFD1 controls DNA methylation in Arabidopsis. [PDF]

open access: yes, 2016
DNA methylation is an epigenetic mechanism that has important functions in transcriptional silencing and is associated with repressive histone methylation (H3K9me).
Bischof, Sylvain   +16 more
core   +2 more sources

Mthfs is an essential gene in mice and a component of the purinosome

open access: yesFrontiers in Genetics, 2011
Tetrahydrofolates (THF) are a family of cofactors that function as one-carbon donors in folate-dependent one-carbon metabolism, a metabolic network required for the de novo synthesis of purines, thymidylate, and for the remethylation of homocysteine to ...
Martha S Field   +2 more
doaj   +1 more source

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