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Virus caught in the act of infecting a cell
Date:1/10/2013

This is also the first time that scientists have made actual images showing how the virus's tail extends into the host the very action that allows it to infect a cell with its DNA.

"I first hypothesized that T7 made an extended tail more than 10 years ago," said Molineux, "but this is the first irrefutable experimental evidence for the idea and provides the first images of what it looks like."

The researchers used a combination of genetics and cryo-electron tomography to image the infection process. Cryo-electron tomography is a process similar to a CT scan, but it is scaled to study objects with a diameter a thousandth the thickness of a human hair.


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Contact: Lee Clippard, Media Relations
clippard@austin.utexas.edu
512-232-0675
University of Texas at Austin
Source:Eurekalert

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