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Study to identify functions of hypothetical genes in 2 infectious disease pathogens
Date:11/19/2013

The National Institute of Allergy and Infectious Diseases (NIAID) has awarded the University of Chicago $4.4 million over five years to study genes of unknown function in bacteria that cause plague and brucellosis.

Sean Crosson, PhD, associate professor of biochemistry and molecular biophysics will lead the effort to characterize hypothetical genesgenes revealed via genome sequencing that as yet have no defined functional roleas part of a new Functional Genomics program at the NIAID. These studies will be carried out in collaboration with Olaf Schneewind, MD, PhD, professor and chair of the Department of Microbiology.

A total of 102 genes encoding proteins and small regulatory RNA sequences in the bacteria Yersinia pestis, which causes plague, and Brucella abortus, which causes brucellosis, a livestock disease that can be transmitted to humans, will be investigated. Targets were selected based on preliminary studies by the Crosson and Schneewind research groups that indicated potential roles for these genes in infection. This research program will be centered at the Howard Taylor Ricketts Laboratory, a level 3 biocontainment facility housed on the campus of Argonne National Laboratory that was constructed in partnership between the NIH and The University of Chicago.

"We have an opportunity to study genes that no one has ever studied," Crosson said. "Assigning function to hypothetical genes can inform studies of all species that contain similar genes."

The University of Chicago researchers are particularly interested in better understanding how these hypothetical genes are related to the infection process. Both Y. pestis and B. abortus are transmitted to humans through animals, and gaining insight into the biological mechanisms for infection could have implications for human health and even bioterrorism.

"This information is very valuable to the infectious disease research comm
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Contact: Kevin Jiang
kevin.jiang@uchospitals.edu
773-795-5227
University of Chicago Medical Center
Source:Eurekalert

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