Title |
Structures of the Gasdermin D C-Terminal Domains Reveal Mechanisms of Autoinhibition
|
---|---|
Published in |
Folding & Design, March 2018
|
DOI | 10.1016/j.str.2018.03.002 |
Pubmed ID | |
Authors |
Zhonghua Liu, Chuanping Wang, Joseph K. Rathkey, Jie Yang, George R. Dubyak, Derek W. Abbott, Tsan Sam Xiao |
Abstract |
Pyroptosis is an inflammatory form of programmed cell death that plays important roles in immune protection against infections and in inflammatory disorders. Gasdermin D (GSDMD) is an executor of pyroptosis upon cleavage by caspases-1/4/5/11 following canonical and noncanonical inflammasome activation. GSDMD N-terminal domain assembles membrane pores to induce cytolysis, whereas its C-terminal domain inhibits cell death through intramolecular association with the N domain. The molecular mechanisms of autoinhibition for GSDMD are poorly characterized. Here we report the crystal structures of the human and murine GSDMD C-terminal domains, which differ from those of the full-length murine GSDMA3 and the human GSDMB C-terminal domain. Mutations of GSDMD C-domain residues predicted to locate at its interface with the N-domain enhanced pyroptosis. Our results suggest that GSDMDs may employ a distinct mode of intramolecular domain interaction and autoinhibition, which may be relevant to its unique role in pyroptosis downstream of inflammasome activation. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 87 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 21 | 24% |
Researcher | 14 | 16% |
Student > Master | 12 | 14% |
Student > Bachelor | 9 | 10% |
Other | 4 | 5% |
Other | 9 | 10% |
Unknown | 18 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 28 | 32% |
Immunology and Microbiology | 15 | 17% |
Agricultural and Biological Sciences | 9 | 10% |
Medicine and Dentistry | 7 | 8% |
Chemistry | 3 | 3% |
Other | 6 | 7% |
Unknown | 19 | 22% |