2N00
NMR Solution structure of AIM2 PYD from Mus musculus
Summary for 2N00
| Entry DOI | 10.2210/pdb2n00/pdb |
| NMR Information | BMRB: 25510 |
| Descriptor | Interferon-inducible protein AIM2 (1 entity in total) |
| Functional Keywords | aim2, pyd, dna binding protein |
| Biological source | Mus musculus (mouse) |
| Cellular location | Nucleus : Q91VJ1 |
| Total number of polymer chains | 1 |
| Total formula weight | 10963.55 |
| Authors | |
| Primary citation | Hou, X.,Niu, X. The NMR solution structure of AIM2 PYD domain from Mus musculus reveals a distinct alpha 2-alpha 3 helix conformation from its human homologues Biochem.Biophys.Res.Commun., 461:396-400, 2015 Cited by PubMed Abstract: The inflammasome is a key component of the innate immune system providing the initial defense against invading organisms. Failure of inflammasome formation is the main reason for many innate and acquired immune diseases. Cytosolic protein absent in melanoma 2 (AIM2) has been reported to play an essential role in double-stranded DNA (dsDNA) sensing and inflammasome formation in response to viruses or bacteria infection. The N-terminal pyrin domain (PYD) of AIM2 interacts with the ASC PYD domain, and then recruits downstream proteins to assemble the AIM2 inflammasome. The molecular mechanisms of PYD mediated signaling remain elusive as limited structural information on PYD family. Herein, we characterized the solution structure of mouse AIM2 PYD domain by NMR spectroscopy, and compared it with the crystal structures of its two human homologues. The comparison shows mAIM2 PYD adopts a unique α2-α3 helix conformation distinct from its human homologues, but similar to the pyrin domain of human NLRP10/PYNOD, which belongs to another family. In addition, the aggregation of mAIM2 PYD domain, with the increased salt concentration, reveals that both the charge surface and hydrophobic interaction play important roles in the self-association of mAIM2 PYD. PubMed: 25888795DOI: 10.1016/j.bbrc.2015.04.046 PDB entries with the same primary citation |
| Experimental method | SOLUTION NMR |
Structure validation
Download full validation report
