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New details on the molecular machinery of cancer
Date:2/11/2013

modifying EGFRs to carry either a red or green fluorescent protein, the researchers were able to monitor in real time how EGFRs move and assemble into dimers during activation by the EGF ligands.

"Focusing on the cell membrane and monitoring each fluorescent photon emitted, then determining both its color and precise time of arrival at the detector, allows unambiguous assignment of which photon was triggered by which color light pulse," Groves says. "All of this can be done in real time and in living cells."

With the mechanics behind the activation of EGFR now fully explained, Groves and his colleagues are now applying their quantitative biology techniques to another group of receptor tyrosine kinases, the Eph receptors, as well as T cell receptors that are so important to the immune system.

"Our broader goal with these quantitative biology techniques is to transform biology into a hard physical science," Groves says. "The idea is to move from simply describing a collage of observations to being able to understand how biological systems work based on fundamental physics."


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Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

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