Crystal Structure of Mouse Triggering Receptor Expressed on Myeloid Cells 1 (TREM-1) at 1.76A
Kelker, M.S., Debler, E.W., Wilson, I.A.(2004) J Mol Biol 344: 1175-1181
- PubMed: 15561137 
- DOI: https://doi.org/10.1016/j.jmb.2004.10.009
- Primary Citation of Related Structures:  
1U9K - PubMed Abstract: 
Triggering receptor expressed on myeloid cells (TREM) 1 is an activating receptor expressed on myeloid cells whose ligand(s) remain elusive. TREM-1 stimulation activates neutrophils and monocytes and induces the secretion of pro-inflammatory molecules, which amplifies the Toll-like receptor-initiated responses to invading pathogens. In addition, TREM-1 mediates the septic shock pathway, and thus represents a potential therapeutic target. We report the crystal structure of the mouse TREM-1 extracellular domain at 1.76A resolution. The mouse extracellular domain is monomeric, consistent with our previous human TREM-1 structure, and strongly supports the contention that the globular TREM-1 head is a monomer contrary to proposals of a symmetric dimer.
Organizational Affiliation: 
Department of Molecular Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.