Cutting Edge: Novel Tmem173 Allele Reveals Importance of STING N Terminus in Trafficking and Type I IFN Production
Authors
Surpris, GuyChan, Jennie
Thompson, Mikayla R.
Ilyukha, Vladimir
Liu, Beiyun C.
Atianand, Maninjay K.
Sharma, Shrutie
Volkova, Tatyana
Smirnova, Irina
Fitzgerald, Katherine A.
Poltorak, Alexander
UMass Chan Affiliations
Division of Infectious Diseases, Department of MedicineProgram in Innate Immunity
Document Type
Journal ArticlePublication Date
2016-01-15Keywords
Immunology and Infectious Disease
Metadata
Show full item recordAbstract
With the stimulator of IFN genes (STING) C terminus being extensively studied, the role of the N-terminal domain (NTD) of STING remains an important subject of investigation. In this article, we identify novel mutations in NTD of Sting of the MOLF strain in response to HSV and Listeria monocytogenes both in vitro and in vivo. These mutations are responsible for low levels of IFN-beta caused by failure of MOLF STING to translocate from the endoplasmic reticulum. These data provide evidence that the NTD of STING affects DNA responses via control of trafficking. They also show that the genetic diversity of wild-derived mice resembles the diversity observed in humans. Several human alleles of STING confer attenuated IFN-I production similar to what we observe with the MOLF Sting allele, a crucial functional difference not apparent in classical inbred mice. Thus, understanding the functional significance of polymorphisms in MOLF STING can provide basic mechanistic insights relevant to humans.Source
J Immunol. 2016 Jan 15;196(2):547-52. doi: 10.4049/jimmunol.1501415. Epub 2015 Dec 18. Link to article on publisher's site
DOI
10.4049/jimmunol.1501415Permanent Link to this Item
http://hdl.handle.net/20.500.14038/28947PubMed ID
26685207Related Resources
ae974a485f413a2113503eed53cd6c53
10.4049/jimmunol.1501415