Tag Archives: DNA

Slinn Pickings

‘Quadruple helix’ DNA discovered in human cells

January 22, 2013 – 11:06 pm

'Quadruple helix' DNA discovered in human cells - In 1953, Cambridge researchers Watson and Crick published a paper describing the interweaving "double helix" DNA structure -- the chemical code for all life. Now, in the year of that scientific landmark's 60th Anniversary, Cambridge researchers have published a paper proving that four-stranded "quadruple helix" DNA structures -- known as G-quadruplexes -- also exist within the human genome.(10.1038/nchem.1548)

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Slinn Pickings

Protein production: going viral – Architecture of essential human transcription factor revealed

January 7, 2013 – 4:06 pm

Protein production: going viral - Architecture of essential human transcription factor revealed - A research team of scientists from EMBL Grenoble and the IGBMC in Strasbourg, France, have, for the first time, described in molecular detail the architecture of the central scaffold of TFIID: the human protein complex essential for transcription from DNA to mRNA. The study, published today in Nature, opens new perspectives in the study of transcription and of the structure and mechanism of other large multi-protein assemblies involved in gene regulation.(10.1038/nature11791)

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Slinn Pickings

DNA hydrogel flows like liquid but remembers its original shape

December 9, 2012 – 2:04 pm

DNA hydrogel flows like liquid but remembers its original shape - A new material is so soft it can flow like a liquid and then, strangely, return to its original shape. It is a hydrogel, a mesh of organic molecules with many small empty spaces that can absorb water like a sponge, and qualifies as a "metamaterial" with properties not found in nature.(10.1038/nnano.2012.211)

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