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Latest Helices Stories

2009-03-24 09:13:09

No doubt proteins are complex. Most are "large" and full of interdependent branches, pockets and bends in their final folded structure. This complexity frustrates biochemists and protein engineers seeking to understand protein structure and function in order to reproduce or create new uses for these natural molecules to fight diseases or for use in industry.From-scratch design of an oxygen transport protein buries hemes in a bundle of protein columns (alpha helices) linked by loops into a...

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2009-02-18 06:50:00

US scientists report that the smallest amount of DNA found at a crime scene could help reveal the face of the criminal. The new process called "Ëœforensic molecular photofitting' goes far beyond doing an identity-proving genetic fingerprint. Dr Mark Shriver from Pennsylvania State University said the process would allow forensic experts to reconstruct facial features and skin with the help of DNA. It maps the genes that are linked to skin pigmentation and facial structure....

2009-02-16 14:59:17

U.S. and Chinese scientists say they've created a two-armed nanorobot that can manipulate molecules within a device built from DNA. Researchers at New York University and China's Nanjing University said the programmable unit allows researchers to capture and maneuver patterns on a scale that is unprecedented. New York University Professor Nadrian Seeman, one of the study's co-authors, said the two-armed nanorobotic device enables the creation of new DNA structures, thereby potentially serving...

2009-02-05 10:14:44

MIT researchers who study the structure of protein-based materials with the aim of learning the key to their lightweight and robust strength have discovered that the particular arrangement of proteins that produces the sturdiest product is not the arrangement with the most built-in redundancy or the most complicated pattern. Instead, the optimal arrangement of proteins in the rope-like structures they studied is a repeated pattern of two stacks of four bundled alpha-helical proteins.This...

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2008-12-26 09:35:00

Much like Steve Jobs of Apple Computers and the creators of the Google search engine, hobbyists are now working at home with the basic building blocks of life itself.People are using the unlimited knowledge of the Internet, and homemade lab equipment, and are trying to create new life forms through genetic engineering, a field largely dominated by Ph.D.'s tolling in university and corporate laboratories.Meredith L. Patterson, a 31-year-old computer programmer in San Francisco, is using her...

2008-11-18 13:25:54

The oldest known nuclear family was killed in a violent struggle, an analysis of the 4,600-year-old remains buried in Germany indicate. In fact, the oldest genetically identifiable family were definitely murdered, there are big holes in their heads, fingers and wrists are broken, Alistair Pike from Bristol University told the BBC. The researchers, whose report was published in the PNAS scientific journal, said comparisons of DNA extracted from bones found in one grave confirmed it entombed a...

2008-11-06 15:00:07

U.S. scientists say they have discovered social interactions can alter the brain's genetic expression far more significantly than has been thought. University of Illinois researchers said our DNA determines a lot about who we are and how we play with others. "But recent studies of social animals -- birds and bees, among others -- show the interaction between genes and behavior is more of a two-way street than most of us realize," the researchers said. Professors Gene Robinson and David...

2008-10-30 09:00:41

Xenomics, Inc. (XNOM.PK), a developer of non-invasive next-generation molecular diagnostics, announced today that it has licensed to Sequenom, Inc., a genetics and molecular diagnostics company (NASDAQ: SQNM), exclusive rights to Xenomics patents for the development of prenatal research and diagnostic products based on the Company's proprietary Transrenal DNA/RNA (Tr-DNA/RNA) technology. The agreement provides for an upfront payment, equity participation and royalties on sales of licensed...

2008-10-08 09:00:15

CARLSBAD, Calif., Oct. 8 /PRNewswire/ -- GenVault Corporation, the leader in dry, room temperature biosample management, announces the launch of an innovative new product, GenTegra(TM) DNA. GenTegra DNA is a proprietary inorganic matrix with built-in oxidative protection and antimicrobial activity for dry, room temperature transport and storage of purified DNA. GenTegra DNA is provided in ready to use aliquots, and purified DNA dried within GenTegra DNA is simply and fully resolubilized...

2008-10-02 15:00:18

The expanding power of DNA analysis is a key focus of this year's 19th International Symposium on Human Identification hosted by Promega Corporation. This year, keynote speaker, Dr. Sean Carroll will discuss the utility of DNA as the "Ultimate Record of Evolution." Additional presentations will feature methods used to identify the slain children of Czar Nicholas who were murdered during the Bolshevik Revolution and advanced technologies used to identify a murderer in a serial murder case in...


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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