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Latest Protein methods Stories

2010-11-01 15:19:23

Chandra Tucker shines a blue light on yeast and mammalian cells in her Duke University lab and the edges of them start to glow. The effect is the result of a light-activated switch from a plant that has been inserted into the cell. Researchers could use this novel "on-off switch" to control cell growth or death, grow new tissue or deliver doses of medication directly to diseased cells, said Tucker, an assistant research professor in the biology department at Duke. She and colleagues created...

2010-10-28 13:43:35

Membrane proteins are of immense biological and pharmaceutical importance. But so far there are only a handful of cases in which the exact structure could be successfully determined. Scientists at Columbia University, New York, and Technische Universitaet Muenchen (TUM) have now succeeded in working out the structure of an important ion channel via the analysis of related proteins. The current issue of the journal Nature reports on their findings. Proteins are molecular machines that...

2010-09-22 18:37:00

LIEGE, Belgium, Sept. 22 /PRNewswire/ -- Diagenode announced today that it has released two additional 5-hmC antibodies to complement its original 5-hmC (rat) monoclonal antibody. The two new 5-hmC monoclonal antibody (mouse) and polyclonal antibody (rabbit) antibodies give researchers additional choices for enriching and analyzing 5-hmC in their methylation studies. (Photo: http://photos.prnewswire.com/prnh/20100922/NY69887 ) (Photo: http://www.newscom.com/cgi-bin/prnh/20100922/NY69887 )...

2010-09-21 21:46:41

Fluorescent microscopy makes use of molecules, such as green fluorescent protein (GFP), that emit colored light when illuminated with light of a specific wavelength. Molecules like GFP can be used to label proteins of interest and can reveal information about the relationships of molecules within cells. Fluorescence polarization, also known as anisotropy, is specific parameter of fluorescence that can provide additional information about the properties of individual molecules. Fluorescence...

2010-09-15 17:20:41

ChIP enrichment analysis database available free online Researchers from Mount Sinai School of Medicine have developed a new computational method that will help streamline the analysis of gene expression experiments and provide scientists with a better mechanistic understanding of the differences between diseased and normal cells. The new database and software, called ChIP Enrichment Analysis (ChEA), will revolutionize how researchers identify drug targets and biomarkers. Researchers can find...

2010-08-03 14:50:28

Zinc finger nucleases (ZFNs) are artificial restriction enzymes made by fusing an engineered zinc finger DNA-binding domain to the DNA cleavage domain of a restriction enzyme. ZFNs can be used to generate targeted genomic deletions of large segments of DNA in a wide variety of cell types and organisms. In the August issue of the journal Cold Spring Harbor Protocols (http://cshprotocols.cshlp.org/TOCs/toc8_10.dtl), Jin-Soo Kim and colleagues...

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2010-07-28 08:55:10

Scientists in Southampton, UK, and Ulm and Karlsruhe in Germany have shown that a variant form of a fluorescent protein (FP) originally isolated from a reef coral has excellent properties as a marker protein for super-resolution microscopy in live cells. Their findings have been published online by Nature Methods and will appear in print in the upcoming August issue of that journal. Fluorescent proteins produced by a range of marine animals glow with a rainbow of colors, adding to the visual...

2010-02-01 18:39:09

Mapping DNase I hypersensitive sites has long been the standard method for identifying genetic regulatory elements such as promoters, enhancers, silencers, insulators, and locus control regions. Sequences that are nucleosome-depleted, presumably to provide access for transcription factors, are selectively digested by DNase I. Traditional low-throughput methods use Southern blots to then identify these hypersensitive sites. In the February issue of Cold Spring Harbor Protocols...

2009-12-16 12:01:59

New approach reduces number of routines needed to detect erythropoietins Austrian researchers have successfully developed a new electrophoretic method for detecting MIRCERA® and other erythropoietins (EPO) in the blood. The technique, using SARCOSYL-PAGE, has specifically enhanced sensitivity for MIRCERA, but does not alter the performance characteristics of SDS-PAGE for detecting other EPOs. Details of this study, funded by a grant from the World Anti-Doping Agency (WADA),...

2009-11-03 12:42:12

The introduction of high-throughput laboratory methods has greatly increased the pace of research into the genetics of complex diseases. Instead of focusing only on one or a few coding variants in a small sample of individuals, the ability to accurately and efficiently genotype many individuals and to cover more of the variation within individual genes has resulted in genetic studies with greater statistical power. "Laboratory Methods for High-Throughput Genotyping," from Howard Edenberg and...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.