Monday, August 08, 2011

ScienceDaily: Biotechnology News

ScienceDaily: Biotechnology News

How yeast chromosomes avoid the bad breaks

Posted: 07 Aug 2011 11:39 AM PDT

Researchers have discovered how yeast cells protect themselves against a novel type of chromosome fragility that occurs in repeated DNA during meiosis -- the cell division that produces spores in fungi or eggs and sperm in plants and animals.

Finding about cell division and metabolism may provide insight into neurodegenerative disorders

Posted: 07 Aug 2011 11:38 AM PDT

A new finding points to new avenues for investigation of cell metabolism that may provide insights into diseases ranging from neurodegenerative disorders like Parkinson's and Alzheimer's disease to certain types of cancers.

New resource to unlock the role of microRNAs

Posted: 07 Aug 2011 11:38 AM PDT

The first mammalian microRNA knockout resource -- mirKO -- will soon be released. This research toolbox of mutant mouse ES cells, in which individual or clustered groups of microRNA genes have been deleted, will help researchers define the role of microRNAs in health and disease. Using these tools researchers can create cells or mice lacking specific microRNAs, study expression using fluorescent markers, or inactivate the gene in specific tissues or at specific times in development.

New conducting properties discovered in bacteria-produced wires

Posted: 07 Aug 2011 11:38 AM PDT

The discovery of a fundamental, previously unknown property of microbial nanowires in the bacterium Geobacter sulfurreducens that allows electron transfer across long distances could revolutionize nanotechnology and bioelectronics, says a team of physicists and microbiologists. Their findings may one day lead to cheaper, less toxic nanomaterials for biosensors and solid state electronics that interface with biological systems.
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