Results 191 to 200 of about 370,851 (253)

Novel Amino Acid Changes Increase Phosphoenolpyruvate Carboxylase Output in planta

open access: yesPlant, Cell &Environment, Volume 49, Issue 11, Page 8306-8321, November 2026.
ABSTRACT Characterization of previously reported Arabidopsis mutants with increased aluminum (Al) resistance (alr) resulting from greater release of Al‐chelating malate identified three unique amino acid substitutions that each impacts PHOSPHOENOLPYRUVATE CARBOXYLASE 1, a key anaplerotic carbon fixation enzyme.
Jinrui Sheng   +7 more
wiley   +1 more source

Spatiotemporal Dynamics of Cytosolic NADPH in Living Arabidopsis thaliana

open access: yesPlant, Cell &Environment, Volume 49, Issue 11, Page 9101-9116, November 2026.
ABSTRACT In plants, an adequate supply of Nicotinamide adenine dinucleotide phosphate (NADPH) in the cytosol is crucial for maintaining a variety of biosynthetic and antioxidant reactions. Cytosolic NADPH is mainly generated via four enzymatic pathways: NADP‐dependent malic dehydrogenase (NADP‐ME), cytosolic oxidative pentose phosphate pathway (cOPPP),
Danying Lu   +4 more
wiley   +1 more source

Increased Expression of Desmin and Vimentin Impairs Mitochondrial Function and Reduces Contractility via G0S2 in Bladder Smooth Muscle

open access: yesThe FASEB Journal, Volume 40, Issue 20, 31 October 2026.
Our previous study demonstrated that elevated levels of desmin and vimentin reduce BSM contractility. This study shows that the reduced BSM contractility is associated with mitochondrial impairment. G0/G1 switch gene 2 (G0S2) is upregulated in desmin‐ and vimentin‐overexpressing BSM.
Elham Javed   +21 more
wiley   +1 more source

Isothiazologuanosine (tzG) as Environmentally Sensitive Fluorescent Reporter in RNA

open access: yesAngewandte Chemie, Volume 138, Issue 43, 19 October 2026.
The emissive isothiazologuanosine analog tzG is synthesized for the first time as RNA phosphoramidite building block for solid‐phase synthesis. Due to its isomorphic and isofunctional characteristics, tzG forms Watson–Crick base pairs and can be used as fluorescent probe to monitor (deoxy)ribozyme activity.
Julia Dietzsch   +2 more
wiley   +2 more sources

Raman Optical Activity as a Tool to Monitor Polynucleotide Conformation in Solutions

open access: yesChemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
Raman optical activity (ROA) studies of nucleic acids have been hindered by limited computational tools to link the spectra to the structure. The study shows that accurate density functional simulations are possible for model nucleotides, bringing more information about molecular geometry and dynamics in solutions.
Mohammed Siddhique Para Kkadan   +5 more
wiley   +1 more source

A Cytosine‑Bulged (3+1) Hybrid G‑Quadruplex Formed by the Chicken DNA Replication Origin

open access: yesChemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
The first high‐resolution structure of an OGRE‐derived G‐quadruplex from the chicken β‐globin replication origin reveals an intramolecular three‐layer (3+1) hybrid fold with a cytosine bulge and an unprecedented 5'‐outer‐quartet anti guanine, creating a distinctive surface for molecular recognition.
Yingying You   +13 more
wiley   +1 more source

One Hundred Years of Sulfido Ligand in the Molybdenum Cofactor: New Perspectives

open access: yesChemBioChem, Volume 27, Issue 19, 14 October 2026.
The terminal sulfido ligand in mononuclear molybdoenzymes has been appreciated for almost 125 years, with the characterization of Schardinger's enzyme in cow's milk, now known to be xanthine oxidase, that was isolated in 1902 in Vienna, Austria. The ligand is found in molybdoenzymes identified across all kingdoms of life.
Silke Leimkühler   +2 more
wiley   +1 more source
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Adenine nucleotides in thrombocytes of birds

Cell Biochemistry and Function, 1984
AbstractAnalysis of free nucleotide composition of both avian thrombocytes and pig platelets showed quantitative differences in the level of adenine nucleotides. 3H‐adenine taken up by turkey thrombocytes was metabolized mainly to adenine nucleotides was not released after thrombin action.
B Wachowicz, Barbara Wachowicz
exaly   +3 more sources

Conformationally Restricted Adenine Nucleotide Analogs in Mitochondrial Adenine Nucleotide Transport

open access: yesZeitschrift Fur Naturforschung - Section C Journal of Biosciences, 1978
Abstract The conformationally restricted adenine nucleotide analogs 8,3′anhydro-8-oxy-9-(β-ᴅ-xylofurano-syl) adenine-5′-O-tri (di) -phosphate (I) , and 8,2′-anhydro-8-oxy-9-(β-ᴅ-arabinofuranosyl) adenine-5′-O-tri (di)-phosphate (II), were prepared chemically as their α- 32 P-
Eckhard Schlimme   +2 more
exaly   +3 more sources

Adenine nucleotides in blood

Biochemical Medicine, 1970
Abstract A new, dynamic cycling procedure for total adenine nucleotides (ATP + ADP + AMP) is described. This procedure permits the measurement of adenine nucleotides in TCA extracts of fresh or frozen blood samples without requiring the removal of TCA from extract.
R P, Miech, M C, Tung
openaire   +2 more sources

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