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Latest Helices Stories

2012-02-09 10:46:32

It's been more than 50 years since James Watson and Francis Crick showed that DNA is a double helix of two strands that complement each other. But how does a short piece of DNA find its match, out of the millions of 'letters' in even a small genome? New work by researchers at the University of California, Davis, handling and observing single molecules of DNA, shows how it's done. The results are published online Feb. 8 by the journal Nature. Defects in DNA repair and copying are strongly...

2012-01-26 06:30:00

CHARLOTTESVILLE, Va., Jan. 26, 2012 /PRNewswire/ -- ZyGEM Corp. Ltd., a developer and marketer of innovative products for the analysis of DNA and other nucleic acids, today announced that it has signed an OEM agreement with Saudi Diagnostics Limited (SDL) for ZyGEM's DNA and RNA extraction kits. SDL was established by the King Faisal Specialist Hospital & Research Centre (KFSH&RC) as part of the Saudi Arabian government's drive to develop a biotechnology sector in the...

2012-01-20 10:54:13

New research published in BioMed Central's open access journal Cell & Bioscience is the first to show that left-handed Z-DNA, normally only found at sites where DNA is being copied, can also form on nucleosomes. The structure of DNA which provides the blueprint for life has famously been described as a double helix. To save space inside the nucleus, DNA is tightly wound around proteins to form nucleosomes which are then further wound and compacted into chromatin, which is further...

2012-01-18 21:38:03

A novel technique has been developed and demonstrated at Penn State University to map the proteins that read and regulate chromosomes -- the string-like structures inside cells that carry genes. The specific order in which these proteins attach DNA-containing nucleosomes along the chromosome determines whether a brain cell, a liver cell, or a cancer cell is formed. Until now, it has been exceedingly difficult to determine exactly where such proteins bind to the chromosome, and therefore how...

2012-01-05 16:37:59

In an effort to make data storage more cost-effective, a group of researchers from National Tsing Hua University in Taiwan and the Karlsruhe Institute of Technology in Germany have created a DNA-based memory device that is "write-once-read-many-times" (WORM), and that uses ultraviolet (UV) light to make it possible to encode information. The device, described in a paper accepted to the AIP's Applied Physics Letters, consists of a thin film of salmon DNA that has been embedded with silver...

2012-01-05 06:30:00

CHARLOTTESVILLE, Va., Jan. 5, 2012 /PRNewswire/ -- ZyGEM Corp. Ltd., a developer and marketer of innovative products for the analysis of DNA and other nucleic acids, and the US Army Medical Research Institute of Infectious Diseases (USAMRIID), today announced the signing of a Cooperative Research and Development Agreement (CRADA) for the development of simplified sample processing solutions for biothreat agents. The two organizations will collaborate on the development, testing and...

2012-01-05 07:30:00

LEAMINGTON SPA, United Kingdom, Jan. 5, 2012 /PRNewswire/ -- DNA Dynamics, Inc.(OTC Pink: DNAD), a global developer and publisher of mobile video games and applications, today announced that its popular, chart-topping mobile game Legacy: Mystery Mansion is now available for download on Amazon's new tablet Kindle Fire(TM). DNA Interactive Ltd, the publishing arm of DNA Dynamics, debuted the original version of Legacy: Mystery Mansion in May 2011 for the iPhone®, quickly achieving a rank...

2011-12-23 01:07:20

In eukaryotes — the group of organisms that include humans — a key to survival is the ability of certain proteins to quickly and accurately repair genetic errors that occur when DNA is replicated to make new cells. In a paper published in the December 23, 2011 issue of the journal Science, researchers at the Ludwig Institute for Cancer Research and the University of California, San Diego School of Medicine have solved part of the mystery of how these proteins do their job, a...

2011-12-19 10:21:39

A team of researchers from the University of Notre Dame have demonstrated a novel DNA detection method that could prove suitable for many real-world applications. Physicists Carol Tanner and Steven Ruggiero led the team in the application of a new technique called laser transmission spectroscopy (LTS). LTS is capable of rapidly determining the size, shape and number of nanoparticles in suspension. In a new paper appearing in the international, peer-reviewed, open-access, online...

2011-12-13 19:05:12

Interactions of biological macromolecules are the central bases of living systems. Biological macromolecules are synthesized in living cells by linking many small molecules together. Naturally occurring macromolecules include genetic materials (DNA) and proteins. A detailed understanding of the synthesis of these macromolecules in whole animals is a basic requirement for understanding biological systems, and for the development of new therapeutic strategies. To visualize the synthesis of...


Latest Helices Reference Libraries

Brief Introduction To DNA Probes
2014-01-12 00:00:00

DNA probes help scientists to detect a specific gene in a long DNA sequence. According to Dr. Michael A. Pfaller, DNA probes are “single-stranded pieces of nucleic acid, labeled with a specific tracer (isotope, enzyme, or chromophore), that will hydrogen bond (hybridize) with complementary single-stranded pieces of DNA (or RNA) under the appropriate conditions of pH, temperature, and iconic strength.” The Foundation for Genomics and Population Health website has a helpful video about...

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