News tagged with rna biology
First-ever blueprint of a minimal cell is more complex than expected
What are the bare essentials of life, the indispensable ingredients required to produce a cell that can survive on its own? Can we describe the molecular anatomy of a cell, and understand how an entire organism ...
Nov 26, 2009 |
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The pre-history of life: Elegantly simple organizing principles seen in ribosomes
With few exceptions, all known forms of life on our planet rely on the same genetic code to specify the amino acid composition of proteins. Although different hypotheses abound, just how individual amino acids ...
Apr 12, 2010 |
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Study builds on plausible scenario for origin of life on Earth
A relatively simple combination of naturally occurring sugars and amino acids offers a plausible route to the building blocks of life, according to a paper published in Nature Chemistry co-authored by a professor at the Un ...
Aug 09, 2011 |
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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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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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No such thing as 'junk RNA,' say Pitt researchers
Tiny strands of RNA previously dismissed as cellular junk are actually very stable molecules that may play significant roles in cellular processes, according to researchers at the University of Pittsburgh School of Medicine ...
Oct 13, 2009 |
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Engineering Bacteria to Clean Up Pesticide (w/ Video)
(PhysOrg.com) -- Can we get bugs to do our bidding? Emory chemist Justin Gallivan has moved science another step closer to that possibility. His lab reprogrammed an innocuous strain of the bacterium Escherichia ...
May 14, 2010 |
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Study of how genes activate yields surprising discovery
Scientists at Albert Einstein College of Medicine of Yeshiva University have made an unexpected finding about the method by which certain genes are activated. Contrary to what researchers have traditionally assumed, genes ...
Dec 05, 2010 |
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Researchers solve structure of human protein critical for silencing genes
In a study published in the journal Cell on May 24, Cold Spring Harbor Laboratory (CSHL) scientists describe the three-dimensional atomic structure of a human protein bound to a piece of RNA that "guides" the pr ...
May 25, 2012 |
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Developments in nanobiotechnology point to medical applications
Two new groundbreaking scientific papers by researchers at UC Santa Barbara demonstrate the synthesis of nanosize biological particles with the potential to fight cancer and other illnesses. The studies introduce ...
Nanotechnology / Bio & Medicine
Aug 31, 2010 |
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Biologists reveal structure of cell nucleus 'gatekeeper'
(PhysOrg.com) -- Biologists led by associate professor Thomas Schwartz (MIT) have worked out a rudimentary architectural plan for the nuclear pore complex (NPC), the gatekeeper of the cell's nucleus.
Oct 27, 2009 |
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Study finds that two non-coding RNAs trigger formation of a nuclear subcompartment
The nucleus of a cell, which houses the cell's DNA, is also home to many structures that are not bound by a membrane but nevertheless exist as distinct compartments. A team of Cold Spring Harbor Laboratory (CSHL) scientists ...
Dec 19, 2010 |
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Built-in 'self-destruct timer' causes ultimate death of messenger RNA in cells
Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered the first known mechanism by which cells control the survival of messenger RNA (mRNA) -- arguably biology's most important molecule. ...
Dec 22, 2011 |
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Early evolution maximized the 'spellchecking' of protein sequences
As letters of the alphabet spell out words, when amino acids are linked to one another in a particular order they "spell out" proteins. But sometimes the cell machinery for building proteins in our bodies makes a mistake ...
Aug 06, 2009 |
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New study examines how bacteria acquire immunity
In a new study this week, Rice University scientists bring the latest tools of computational biology to bear in examining how the processes of natural selection and evolution influence the way bacteria acquire immunity from ...
Sep 15, 2010 |
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