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Latest Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid Stories

2013-12-06 00:00:07

Korean researchers propose simple model to explain DNA helicity and elasticity on a nanometer scale A simple mechanical model to effectively implement the well-known double-stranded structure and the elasticity of DNA on a nano-meter scale has been developed by Jae-Hyung Jeon and Wokyung Sung of Pohang University of Science and Technology in the Republic of Korea, in an effort to more comprehensively explore the nucleic acid containing genetic material of cells. The model was published in...

2013-04-18 23:32:55

A research team from NPL and the University of Edinburgh have invented a new way to zip and unzip DNA strands using electrochemistry. The DNA double helix has been one of the most recognizable structures in science ever since it was first described by Watson and Crick almost 60 years ago (paper published in Nature in 25 April 1953). The binding and unbinding mechanism of DNA strands is vital to natural biological processes and to the polymerase chain reactions used in biotechnology to copy...

2010-09-30 14:42:11

2 Watson School professors find unread correspondence of Francis Crick The story of the double helix's discovery has a few new twists. A new primary source -- a never-before-read stack of letters to and from Francis Crick, and other historical materials dating from the years 1950-76 -- has been uncovered by two professors at the Watson School of Biological Sciences at Cold Spring Harbor Laboratory (CSHL). The letters both confirm and extend current knowledge of the circumstances surrounding...

2009-12-04 01:06:53

Researchers show how proteins slide along DNA to carry out vital biological processes A team of scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Harvard University, and the Indian Institute of Science has made a major step in understanding how molecules locate the genetic information in DNA that is necessary to carry out important biological processes. The research, published in the December 1, 2009 edition of Nature Structural & Molecular Biology,...

2009-03-24 15:36:08

A U.S. scientist and his colleagues have described the design of a new type of DNA with 12 chemical letters instead of the usual four. Researchers, led by Steven Benner of the Foundation for Applied Molecular Evolution in Gainesville, Fla., said their artificial genetic system already is helping to usher in the era of personalized medicine. The scientists said their research might also shed light on how life arose on Earth, by producing a self-sustaining molecule capable of Darwinian...

2009-03-23 13:56:31

In a dramatic rewrite of the recipe for life, scientists from Florida today described the design of a new type of DNA with 12 chemical letters instead of the usual four. Presented here at the 237th National Meeting of the American Chemical Society (ACS), this artificial genetic system already is helping to usher in the era of personalized medicine for millions of patients with HIV, hepatitis and other diseases. The research may also shed light on how life arose on Earth, by producing a...

2008-07-23 03:00:00

By Dahm, Ralf Few remember the man who discovered the "molecule of life" three- quarters of a century before Watson and Crick revealed its structure On February 26, 1869, in the old university town of Tubingen in southwest Germany, the young Swiss doctor Friedrich Miescher, who had settled there only a few months earlier, completed a letter to his uncle in which he described a momentous discovery. He had found a substance that he was certain resided in the cell nucleus and which differed in...

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2007-11-06 08:56:03

Athens, Ga. "“ Experiments show that simple molecules can combine chemically rather than biologically to form the building blocks of DNA, the key component of all life forms. These processes might have taken place on primitive earth, but how they occur is an unsolved puzzle. Chemists at the University of Georgia have now proposed the first detailed, feasible mechanism to explain how adenine, one of the four building blocks of DNA, might be built up from the combination of five cyanide...