Related topics: rna

Origins of life could have started with DNA-like XNAs

Nagoya University scientists in Japan have demonstrated how DNA-like molecules could have come together as a precursor to the origins of life. The findings, published in the journal Nature Communications, not only suggest ...

Virus detection method is versatile and accessible

A safe, fast and cheap testing method that uses magnetic nanoparticles to detect viruses in both clinical and wastewater samples has been developed by KAUST researchers. The centrifuge-free approach is compatible with magnetic ...

Researchers develop two new rapid COVID-19 diagnostic tests

University of Minnesota Medical School researchers have developed two new rapid diagnostic tests for COVID-19—one to detect COVID-19 variants and one to help differentiate with other illnesses that have COVID-19-like symptoms. ...

How epigenetic switches control gene expression

Scientists at Tokyo Institute of Technology have deciphered how to quantitatively assess the effects of specific epigenetic changes on the rate of transcription by developing a mathematical model. Using their method, they ...

Creating self-constructed folded macrocycles with low symmetry

The synthesis and self-organization of biological macromolecules is essential for life on earth. Ludwig Maximilian University of Munich chemists now report the spontaneous emergence of complex ring-shaped macromolecules with ...

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Nucleic acid

A nucleic acid is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living things, as they are found in all cells and viruses. Nucleic acids were first discovered by Friedrich Miescher in 1871.

Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally-occurring DNA or RNA by changes to the backbone of the molecule.

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