Molecular biology
hideMolecular biology is the study of biology at a molecular level. The field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry. Molecular biology chiefly concerns itself with understanding the interactions between the various systems of a cell, including the interactions between DNA, RNA and protein biosynthesis as well as learning how these interactions are regulated.
Writing in Nature, William Astbury described molecular biology as:
"[...]not so much a technique as an approach, an approach from the viewpoint of the so-called basic sciences with the leading idea of searching below the large-scale manifestations of classical biology for the corresponding molecular plan. It is concerned particularly with the forms of biological molecules and[...]is predominantly three-dimensional and structural—which does not mean, however, that it is merely a refinement of morphology. It must at the same time inquire into genesis and function."
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News tagged with molecular biology
DNA needs a good editor: Researchers unravel the mysteries of DNA packaging
Dec 14, 2009 |
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Imagine a huge spool of film containing thousands of sequences of random scenes. Without a talented editor, a screening would have no meaning.
Scientists crack mystery of protein's dual function
Dec 13, 2009 |
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Researchers at The Scripps Research Institute have solved a 10-year-old mystery of how a single protein from an ancient family of enzymes can have two completely distinct roles in the body. In addition to providing guidance ...
Scientists find way to catalog all that goes wrong in a cancer cell
Dec 10, 2009 |
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(PhysOrg.com) -- A team of Princeton University scientists has produced a systematic listing of the ways a particular cancerous cell has "gone wrong," giving researchers a powerful tool that eventually could make possible ...
Precision breeding creates super potato
Dec 08, 2009 |
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The skin is light brown, the meat luscious and yellow: from the outside alone, this new potato looks like any other. But on the inside, it is different. Its cells produce pure amylopectin, a starch used in ...
It takes two to infect: Structural biologists shed light on mechanism of invasion protein
Nov 30, 2009 |
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Bacteria are quite creative when infecting the human organism. They invade cells, migrate through the body, avoid an immune response and misuse processes of the host cell for their own purposes. To this end every bacterium ...
Researchers discover biological basis of 'bacterial immune system'
Nov 30, 2009 |
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(PhysOrg.com) -- Bacteria don’t have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days.
One word: bioplastics
Nov 17, 2009 |
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(PhysOrg.com) -- Every year, more than 250 billion pounds of plastic are produced worldwide. Much of it ends up in the world's oceans, a fact that troubles MIT biology professor Anthony Sinskey.
Can cleft palate be healed before birth?
Dec 01, 2009 |
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In a study newly published in the journal Development, investigators at the USC School of Dentistry describe how to non-surgically reverse the onset of cleft palate in fetal mice - potentially one step in the journey to a b ...
Beyond genomics, biologists and engineers decode the next frontier
Nov 18, 2009 |
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(PhysOrg.com) -- A team of Princeton biologists and engineers has dramatically improved the speed and accuracy of measuring an enigmatic set of proteins that influences almost every aspect of how cells and ...
Researchers identify new mechanism of blocking HIV-1 from entering cells
Medicine & Health / HIV & AIDS
Nov 30, 2009 |
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Publishing in PLoS Pathogens, researchers at from the Kimmel Cancer Center at Jefferson have found a novel mechanism by which drugs block HIV-1 from entering host cells.
Genome-wide study of autism published in Nature
Oct 07, 2009 |
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(PhysOrg.com) -- In one of the first studies of its kind, an international team of researchers has uncovered a single-letter change in the genetic code that is associated with autism. The finding, published ...
Ancient ecosystem thrives millions of years below Antarctic glacier
Space & Earth / Earth Sciences
Apr 16, 2009 |
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(PhysOrg.com) -- A reservoir of briny liquid buried deep beneath an Antarctic glacier supports hardy microbes that have lived in isolation for millions of years, researchers report this week in the journal ...
Native Americans descended from a single ancestral group, DNA study confirms
Apr 29, 2009 |
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For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
Researchers Create Microscope With 100 Million Times Finer Resolution Than Current MRI
Nanotechnology / Bio & Medicine
Jan 13, 2009 |
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(PhysOrg.com) -- IBM Research scientists, in collaboration with the Center for Probing the Nanoscale at Stanford University, have demonstrated magnetic resonance imaging (MRI) with volume resolution 100 million ...
Scientists model 3D structures of proteins that control human clock
Apr 11, 2009 |
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In an Early Edition issue of The Proceedings of the National Academy of Sciences (PNAS) on April 9, 2009, the researchers report that they have been able to determine the molecular structure of a plant photolyase protein that ...
