alexa Real Time Analysis Of Gene Expression In Living Yeast Cells: Novel Approach For Accurate Cell Damage Detection
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading
Loading Please wait..
 

5th World Congress on Biotechnology
June 25-27, 2014 Valencia Conference Centre, Valencia, Spain

Amparo Pascual-Ahuir Giner
ScientificTracks Abstracts: J Biotechnol Biomater
DOI: 10.4172/2155-952X.S1.027
Abstract
Microorganisms respond to environmental stress by the activation of gene expression programs in order to adapt and survive. Fine tuned transcriptional activation in response to stress is the result of dynamic interactions of transcription factors with specific promoter binding sites. A time resolved luciferase reporter assay in living yeast cells to gain insights into how osmotic, oxidative and nutritional stress signals modulate gene expression in a dose sensitive manner was used. Specifically, the dose response behavior of four different natural promoters ( GRE2, CTT1, SOD2 and CCP1 ) reveals differences in their sensitivity and dynamics to salt and oxidative stimuli. Characteristic dose response profiles are also obtained for artificial promoters driven by only one type of stress regulated consensus element, such as CRE, STRE or AP-1 sites. It has been shown that the stress tolerance of the cell critically modulates the dynamics of its transcriptional response in the case of oxidative stress. Moreover, it was identified different regulatory elements in the promoters of oxidative and osmotic stress response genes that are highly specific for the cell damage. In fact we use this technology to distinguish the cause of oxidative harm of different molecules such as toxins or oxidative compounds, in order to understand the biological target of injury, and therefore infer the molecular mechanisms of cellular defense. Real time analysis of gene expression in living yeast cells is extremely sensitive and requires low concentrations of the chemical species studied, thus this technology allows the study of cell damage at physiological levels.
Biography
Amparo Pascual-Ahuir Gineris associate professor at the Polytechnic University of Valencia (UPV) department of Biochemistry and Molecular Biology, and researcher at the Institute of Plant Molecular and Cellular Biology (IBMCP), department of abiotic stress. She has completed his PhD at the UPV in 2001 in the field of transcriptional regulation of genes under stress response. She spent three years as post-doc at Harvard University, Department of Genetics, granted by a Human Frontiers Science Program Long term Fellowship. She is Faculty member of the UPV since 2007, and in collaboration with Dr. Proft, she is leading a research group interested in the study of molecular circuits involved in stress response.
image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords