Articles tagged with Dna Bases
Biochemist Martin Egli and his team solved the X-ray crystal structure of homo-DNA, an artificial analog of DNA with a six-carbon sugar backbone. The study shows that fully hydroxylated six-carbon sugars are too bulky to produce a stable base-pairing system capable of carrying genetic information as efficiently as DNA.
Researchers at Virginia Tech are developing novel polymers that incorporate DNA base pairs, resulting in enhanced elasticity and self-healing capabilities. These biobased materials have potential applications in various industries, including automotive and biomedical sectors.
Researchers at Oregon State University confirmed the existence of a 'dark state' in DNA molecules that makes them vulnerable to UV-induced damage. The study suggests that water played a crucial role in stabilizing these early DNA bases and allowing life to emerge from a hostile primordial soup.
A study found that larger DNA bases can lead to increased efficiency in DNA replication, allowing for more genetic mutations. This discovery sheds light on the mechanisms underlying genetic evolution.
Researchers suggest primordial doublet code evolved into triplet system, explaining 20 amino acids and error tolerance. The theory also points to a hot primordial soup as the origin of life.
Researchers at ASU have developed a novel method to detect DNA mutations using nanocrystals that can recognize subtle changes in DNA. This technology has the potential to diagnose genetic diseases, detect infectious agents, and provide reliable forensic analysis.
Researchers at Harvard University have developed a technique to produce organic molecules by attaching them to single DNA strands, which can then be used as a sequence-programmable assembly line for chemical synthesis. This method enables the selection and amplification of molecules with desired functional properties.
The grant will fund studies on how the enzyme, DNA polymerase, accurately copies genetic information, revealing its unique catalytic selectivity and minimizing errors, which could inform cancer research.
Scientists have directly observed RNA 'proofreading' for the first time using nanotech instruments, revealing a backtracking motion that corrects genetic errors. The study provides strong evidence for the self-correcting mechanism of RNA polymerase, improving our understanding of gene expression and potentially informing human health.
Scientists at Stanford University have created a 'supersized' DNA molecule, xDNA, consisting of larger base pairs that can increase stability and fluorescence. This new genetic system has the potential to revolutionize medical biopsies and potentially lead to the discovery of new life forms.
Researchers found that nitrogenous bases could protect primordial RNA from UV radiation, leading to a selective advantage and increased stability. This mechanism may have driven the origin of life on Earth, turning high UV levels into a key factor in the process.
Researchers have isolated nucleic-acid base pairs and observed their pairing mechanism, shedding light on the structure of DNA. By studying individual base molecules in a controlled environment, they found that there is only one way for them to bond, similar to the connection between Lego building blocks.
Researchers at Brown University have developed a new way to sequence DNA that is faster and more efficient than current methods. By inserting gaps into DNA probes, they can extract substantially more information about the DNA, allowing for the sequencing of tens of thousands of bases.
A team of scientists has developed a method to identify common human single nucleotide polymorphisms (SNPs) located in active genes. By comparing sequences from cDNA libraries across 50 individuals, they found 201 coding SNPs that could provide valuable insights into genetic differences between people.
Scientists at the University of Rochester have discovered that shape plays a crucial role in copying DNA, contradicting previous theories that relied on hydrogen bonds. This finding has significant implications for cancer diagnosis and potential applications in artificial DNA creation.
The international consortium has successfully completed the pilot phase and is now accelerating the large-scale effort to sequence the human genome. The goal is to produce a working draft covering at least 90 percent of human genome sequence within one year, with completion expected by 2003.
Researchers found that growing strands of DNA can accurately incorporate a nucleotide that closely resembles thymine but lacks hydrogen bonding ability. This finding suggests that the distinctive shapes and sizes of DNA bases may underpin the impressive 99.99-percent accuracy of DNA replication.
A ring-like molecule mimicking thymine's shape was inserted into DNA without hydrogen bonds, yet still accurately paired with adenine. This finding questions decades of dogma and suggests base shape is crucial for accurate DNA replication.