ADVERTISEMENT
ADVERTISEMENT
Rendered image of <em>Chlamydia</em>
How Chlamydia Guards Itself Against the Immune System
The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.
How Chlamydia Guards Itself Against the Immune System
How Chlamydia Guards Itself Against the Immune System

The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.

The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.

ubiquitin

<em>Chlamydia</em> invades a host cell, forms a membrane-bound vacuole, or inclusion, and then modifies the protein composition of the structure&rsquo;s membrane. If immune cells detect <em>Chlamydia</em> before it forms the inclusion, they trigger T cells to produce interferon-&gamma; (IFN-&gamma;), a powerful cytokine. IFN-&gamma; activates the protein mysterin (also called RFN213), which attaches ubiquitin to the inclusion membrane, signaling the cell to destroy the inclusion&rsquo;s contents by dumping them into a lysosome (left). C. trachomatis produces GarD, a protein that integrates into the inclusion membrane itself and somehow prevents mysterin from attaching ubiquitin, allowing the bacterium to evade immune destruction while continuing to multiply and eventually bursting from the cell (right).
Infographic: How Chlamydia Evades Immune Detection
Natalia Mesa, PhD | Jan 2, 2023 | 2 min read
Chlamydia trachomatis, the bacterium that causes chlamydia, hides from the immune system by cloaking itself in the host cell’s membrane then modifying the membrane’s protein composition.
39632-tsu-pioneering-research-ubiquitin-ligase-biology-ac-800x560
Pioneering Research in E3 Ubiquitin Ligase Biology and Applications to Drug Discovery
The Scientist Creative Services Team in collaboration with Bio-Techne | Sep 15, 2021 | 1 min read
Jennifer Johnston discusses how a better understanding of ubiquitin-proteasome system elements can potentially aid neurodegenerative disease therapeutics.
Infographic: Proteasome Basics
John Hines and Craig M. Crews | Apr 30, 2017 | 2 min read
The structure and function of the cell's protein-degrading machine
Biochemistry Pioneer Dies
Tracy Vence | Jun 2, 2015 | 1 min read
Irwin “Ernie” Rose, who shared the 2004 Nobel Prize in Chemistry for his work on ubiquitin-mediated protein degradation, has passed away at age 88.
Cellular Garbage Disposal Illuminated
Bob Grant | Apr 13, 2015 | 1 min read
A Harvard team shows how cells label and recognize proteins for degradation.
Neil Bence: Manipulating Degradation
Kerry Grens | Dec 1, 2012 | 3 min read
Senior Scientist, Millennium Pharmaceuticals: The Takeda Oncology Company Age: 39
Ubiquitin Chains in Action
Keith D. Wilkinson and David Fushman | Jul 1, 2012 | 1 min read
Present in every tissue of the body, ubiquitin appears to be involved in a dizzying array of functions, from cell cycle and division to organelle and ribosome biogenesis, as well as the response to viral infection. The protein plays at least two role
Daniel Durocher: Change is Good
Kerry Grens | Jul 1, 2012 | 3 min read
Senior Investigator, Samuel Lunenfeld Research Institute, Toronto, Ontario, Canada. Age 40
On the Chain Gang
Keith D. Wilkinson and David Fushman | Jul 1, 2012 | 10 min read
More than simply helping haul out a cell’s garbage, ubiquitin, with its panoply of chain lengths and shapes, marks and regulates many unrelated cellular processes.
Ubiquitin basics
Keith D. Wilkinson and David Fushman | Jul 1, 2012 | 1 min read
Despite its discovery as a protein that seems to show up everywhere, at least in eukaryotic cells, researchers are only beginning to scratch the surface of all of the cellular functions involving ubiquitin. 
Forced Feeding
Edyta Zielinska | Feb 1, 2012 | 2 min read
Editor's choice in drug development
Come Inside
Richard P. Grant | Mar 1, 2011 | 2 min read
Editor's choice in immunology
The Genes of Parkinsonā€™s Disease
Bobby Thomas and M. Flint Beal | Feb 1, 2011 | 10 min read
The minority of Parkinson’s cases now known to have genetic origins are shedding light on the cellular mechanisms of all the rest, bringing researchers closer to a cause—and perhaps a cure.
hepatitis c lasker award
Six Scientists Receive Lasker Awards
Eugene Russo | Oct 15, 2000 | 7 min read
Ubiquitin-related research has made the transition from the basic to clinical arena in the past decade, and the field is now central to understanding diseases ranging from cancer to neurodegenerative disorders.
ADVERTISEMENT