1ziw
From Proteopedia
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'''Human Toll-like Receptor 3 extracellular domain structure''' | '''Human Toll-like Receptor 3 extracellular domain structure''' | ||
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[[Category: Choe, J.]] | [[Category: Choe, J.]] | ||
[[Category: Wilson, I A.]] | [[Category: Wilson, I A.]] | ||
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- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:40:51 2008'' | |
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Revision as of 14:40, 3 May 2008
Human Toll-like Receptor 3 extracellular domain structure
Overview
Toll-like receptors (TLRs) play key roles in activating immune responses during infection. The human TLR3 ectodomain structure at 2.1 angstroms reveals a large horseshoe-shaped solenoid assembled from 23 leucine-rich repeats (LRRs). Asparagines conserved in the 24-residue LRR motif contribute extensive hydrogen-bonding networks for solenoid stabilization. TLR3 is largely masked by carbohydrate, but one face is glycosylation-free, which suggests its potential role in ligand binding and oligomerization. Highly conserved surface residues and a TLR3-specific LRR insertion form a homodimer interface in the crystal, whereas two patches of positively charged residues and a second insertion would provide an appropriate binding site for double-stranded RNA.
About this Structure
1ZIW is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of human toll-like receptor 3 (TLR3) ectodomain., Choe J, Kelker MS, Wilson IA, Science. 2005 Jul 22;309(5734):581-5. Epub 2005 Jun 16. PMID:15961631 Page seeded by OCA on Sat May 3 17:40:51 2008