1smo
From Proteopedia
Crystal Structure of Human Triggering Receptor Expressed on Myeloid Cells 1 (TREM-1) at 1.47 .
Overview
The triggering receptor expressed on myeloid cells (TREM) family of single extracellular immunoglobulin receptors includes both activating and inhibitory isoforms whose ligands are unknown. TREM-1 activation amplifies the Toll-like receptor initiated responses to invading pathogens allowing the secretion of pro-inflammatory chemokines and cytokines. Hence, TREM-1 amplifies the inflammation induced by both bacteria and fungi, and thus represents a potential therapeutic target. We report the crystal structure of the human TREM-1 extracellular domain at 1.47 A resolution. The overall fold places it within the V-type immunoglobulin domain family and reveals close homology with Ig domains from antibodies, T-cell receptors and other activating receptors, such as NKp44. With the additional use of analytical ultracentrifugation and 1H NMR spectroscopy of both human and mouse TREM-1, we have conclusively demonstrated the monomeric state of this extracellular ectodomain in solution and, presumably, of the TREM family in general.
About this Structure
1SMO is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of human triggering receptor expressed on myeloid cells 1 (TREM-1) at 1.47 A., Kelker MS, Foss TR, Peti W, Teyton L, Kelly JW, Wuthrich K, Wilson IA, J Mol Biol. 2004 Sep 24;342(4):1237-48. PMID:15351648 Page seeded by OCA on Sat May 3 08:53:42 2008
