Results 31 to 40 of about 784,241 (300)

Protein Mass and Calcium Mass of Broiler Chicken with Added Nucleotides at Different Maintenance Temperatures

open access: yesJurnal Sain Peternakan Indonesia, 2021
This study aims to examine the effect of adding nucleotides in broiler rations on the protein mass and calcium mass of broiler chicken reared at different temperatures.
I. Rahmawati, L .D. Mahfudz, S. Kismiati
doaj   +1 more source

Dietary Supplementation of Brown Seaweed and/or Nucleotides Improved Shrimp Performance, Health Status and Cold-Tolerant Gene Expression of Juvenile Whiteleg Shrimp during the Winter Season

open access: yesMarine Drugs, 2021
This study was aimed to evaluate the efficiency of Sargassumpolycystum and nucleotides- supplemented diets to improve immune response and cold-tolerance of juvenile Litopenaeus vannamei.
Mohamed Abdel-Rahim   +5 more
doaj   +1 more source

Structural basis of template-boundary definition in Tetrahymena telomerase. [PDF]

open access: yes, 2015
Telomerase is required to maintain repetitive G-rich telomeric DNA sequences at chromosome ends. To do so, the telomerase reverse transcriptase (TERT) subunit reiteratively uses a small region of the integral telomerase RNA (TER) as a template.
Akiyama, Ben M   +5 more
core   +2 more sources

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +1 more source

Applications of nucleoside-based molecular probes for the in vivo assessment of tumour biochemistry using positron emission tomography (PET)

open access: yesBrazilian Archives of Biology and Technology, 2007
Positron emission tomography (PET) is a non-invasive nuclear imaging technique. In PET, radiolabelled molecules decay by positron emission. The gamma rays resulting from positron annihilation are detected in coincidence and mapped to produce three ...
Leonard I. Wiebe
doaj   +1 more source

Programmable multimetallic linear nanoassemblies of ruthenium–DNA conjugates [PDF]

open access: yes, 2012
A new ruthenium–DNA conjugates family was synthesized, made up of a ruthenium complex bound to one or two identical DNA strands of 14–58 nucleotides.
Chouini-Lalanne, Nadia   +5 more
core   +3 more sources

The nucleobase analog 4-thiouracil hijacks the pyrimidine salvage pathway to inhibit Staphylococcus aureus growth

open access: yesMicrobiology Spectrum
Staphylococcus aureus is a leading cause of bacterial-induced mortality due to infections that are increasingly resistant to antibiotics, highlighting the need for new therapeutic strategies to treat these drug-resistant infections.
Matthew J. Munneke   +2 more
doaj   +1 more source

An Allosteric Inhibitory Site Conserved in the Ectodomain of P2X Receptor Channels

open access: yesFrontiers in Cellular Neuroscience, 2019
P2X receptors constitute a gene family of cation channels gated by extracellular ATP. They mediate fast ionotropic purinergic signaling in neurons and non-excitable cell types in vertebrates.
Ariel R. Ase   +2 more
doaj   +1 more source

Physiological and Metabolic Responses of Leymus chinensis Seedlings to Alkali Stress

open access: yesPlants, 2022
To elucidate the physiological and metabolic mechanism of perennial grass responses to alkali stress, we selected Leymus chinensis (L. chinensis), a salt-tolerant perennial rhizomatous species of the family Poaceae as experimental material.
Ge Yan   +4 more
doaj   +1 more source

Electronic signature of DNA nucleotides via transverse transport

open access: yes, 2004
We report theoretical studies of charge transport in single-stranded DNA in the direction perpendicular to the backbone axis. We find that, if the electrodes which sandwich the DNA have the appropriate spatial width, each nucleotide carries a unique ...
Di Ventra, Massimiliano, Zwolak, Michael
core   +1 more source

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