News tagged with cytosine
A 'wild card' in your genes
The human genome and the endowments of genes in other animals and plants are like a deck of poker cards containing a "wild card" that in a genetic sense introduces an element of variety and surprise that has ...
Dec 07, 2011 |
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Researchers suspend, image single DNA molecules
(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands ...
Chemistry / Analytical Chemistry
Oct 31, 2011 |
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Patterns of new DNA letter in brain suggest distinct function
In 2009, the DNA alphabet expanded. Scientists discovered that an extra letter or "sixth nucleotide" was surprisingly abundant in DNA from stem cells and brain cells.
Medicine & Health / Neuroscience
Oct 30, 2011 |
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Biochemists identify new genetic code repair tool
Clemson University researchers recently reported finding a new class of DNA repair-makers.
Sep 27, 2011 |
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Hopkins team discovers how DNA changes
Using human kidney cells and brain tissue from adult mice, Johns Hopkins scientists have uncovered the sequence of steps that makes normally stable DNA undergo the crucial chemical changes implicated in cancers, psychiatric ...
Apr 14, 2011 |
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New labeling method expands ability to read DNA modification
Researchers at Emory University School of Medicine and the University of Chicago have developed a method for labeling and mapping a "sixth nucleotide," whose biological role scientists are only beginning to explore.
Dec 13, 2010 |
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Study discovers role of DNA methylation in multiple myeloma blood cancer
Sept. 30, 2010 — DNA methylation — a modification of DNA linked to gene regulation — is altered with increasing severity in a blood cancer called multiple myeloma, according to a study by Mayo Clinic and the Translational ...
Sep 30, 2010 |
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Carbon nanotubes show promise for high-speed genetic sequencing
(PhysOrg.com) -- Faster sequencing of DNA holds enormous potential for biology and medicine, particularly for personalized diagnosis and customized treatment based on each individual's genomic makeup. At present ...
Nanotechnology / Bio & Medicine
Jan 06, 2010 |
4 / 5 (4) |
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Carbon nanotubes show promise for high-speed genetic sequencing (w/ Video)
Faster sequencing of DNA holds enormous potential for biology and medicine, particularly for personalized diagnosis and customized treatment based on each individual's genomic makeup. At present however, ...
Nanotechnology / Nanomaterials
Dec 31, 2009 |
4.4 / 5 (16) |
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Scientists identify key factor that controls HIV latency
Scientists at the Gladstone Institutes of Virology and Immunology (GIVI) have found another clue that may lead to eradication of HIV from infected patients who have been on antiretroviral therapy. A real cure for HIV has ...
Medicine & Health / HIV & AIDS
Jun 26, 2009 |
5 / 5 (3) |
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DNA template could explain evolutionary shifts
Rearrangements of all sizes in genomes, genes and exons can result from a glitch in DNA copying that occurs when the process stalls at a critical point and then shifts to a different genetic template, duplicating and even ...
Jun 21, 2009 |
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Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications
A ghostly property of matter, called quantum tunneling, may aid the quest for accurate, low-cost genomic sequencing, according to a new paper in Nature Nanotechnology Letters by Stuart Lindsay and his collab ...
Nanotechnology / Bio & Medicine
Mar 22, 2009 |
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Cytosine
Cytosine (C) is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached (an amine group at position 4 and a keto group at position 2). The nucleoside of cytosine is cytidine. In Watson-Crick base pairing, it forms three hydrogen bonds with guanine.
For more information about Cytosine, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
