News tagged with rna polymerase
Related topics: gene expression
Physics of gene transcription unveiled
(PhysOrg.com) -- A research team has made precise measurements of where and how RNA polymerase encounters obstacles while it reads nucleosomal DNA.
May 14, 2010 |
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DksA polices the intersection of replication and transcription
DNA replication, the process by which a strand of DNA is copied during cell proliferation , and DNA transcription, the process by which the message in the DNA is translated into messenger RNA, involve the same "track" or ...
May 13, 2010 |
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Our genes can be set on pause
New evidence in embryonic stem cells shows that mammalian genes may all have a layer of control that acts essentially like the pause button on your DVR. The researchers say the results show that the pausing phenomenon, previously ...
Apr 29, 2010 |
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Scientists make fundamental discovery about how gene expression functions in bacteria
Researchers from NYU Langone Medical Center have discovered and characterized a general mechanism that controls transcription elongation in bacteria. The mechanism, described in the April 23 issue of Science, relies on phy ...
Apr 22, 2010 |
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Scientists crash test DNA's replication machinery
(PhysOrg.com) -- Important molecular machines routinely crash into one another while plying their trades on DNA. New research shows that the enzymes that copy DNA before cell division, called replisomes, are the kings of ...
Feb 10, 2010 |
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Cells can read damaged DNA without missing a beat
Scientists have shown that cells' DNA-reading machinery can skim through certain kinds of damaged DNA without skipping any letters in the genetic "text." The studies, performed in bacteria, suggest a new mechanism that can ...
Feb 09, 2010 |
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Paradigm changing mechanism is revealed for the control of gene expression in bacteria
A new study led by researchers at NYU Langone Medical Center is shedding new light on the action of Rho, a key regulatory protein in E. coli and many other bacteria. The study published in the January 14, 2010 issue of Nature reveal ...
Jan 13, 2010 |
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Chemists Discover How Cells Create Stability During Critical DNA-to-RNA Information Transfers
(PhysOrg.com) -- A pair of University of Massachusetts Amherst chemists believe they have for the first time explained how the main players in transcription -- RNA polymerase, RNA (red in illustration) and ...
Dec 29, 2009 |
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How RNA polymerase II gets the go-ahead for gene transcription
All cells perform certain basic functions. Each must selectively transcribe parts of the DNA that makes up its genome into RNAs that specify the structure of proteins. The set of proteins synthesized by a cell in turn determines ...
Oct 09, 2009 |
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Gene transcribing machine takes halting, backsliding trip along the DNA
(PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists.
Jul 30, 2009 |
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One secret to how TB sticks with you
Mycobacterium tuberculosis is arguably the world's most successful infectious agent because it knows how to avoid elimination by slowing its own growth to a crawl. Now, a report in the July 10 issue of the journal Cell, ...
Jul 09, 2009 |
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Molecular typesetting -- proofreading without a proofreader
Researchers at the Universities of Leeds and Bristol (UK) have developed a model of how errors are corrected whilst proteins are being built.
Jun 23, 2009 |
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TRAPping proteins that work together inside living cells
DNA might be the blueprint for living things, but proteins are the builders. Researchers trying to understand how and which proteins work together have developed a new crosslinking tool that is small and unobtrusive ...
Jun 15, 2009 |
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Researchers Reveal Structure of Key Genetic Proofreading Protein
(PhysOrg.com) -- Nature might abhor a vacuum, but it loves a backup plan. In living organisms, physiological systems are kept under tight control by hierarchies of organic safety catches and emergency releases, ...
Jun 05, 2009 |
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Bacteria are models of efficiency
The bacterium Escherichia coli, one of the best-studied single-celled organisms around, is a master of industrial efficiency. This bacterium can be thought of as a factory with just one product: itself. It exists to make c ...
Biology /
Feb 04, 2009 |
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