5NAM

NMR structure of TLR4 transmembrane domain (624-670) in DMPG/DHPC bicelles


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Spatial structure of TLR4 transmembrane domain in bicelles provides the insight into the receptor activation mechanism.

Mineev, K.S.Goncharuk, S.A.Goncharuk, M.V.Volynsky, P.E.Novikova, E.V.Aresinev, A.S.

(2017) Sci Rep 7: 6864-6864

  • DOI: 10.1038/s41598-017-07250-4
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Toll-like receptors (TLRs) play a key role in the innate and adaptive immune systems. While a lot of structural data is available for the extracellular and cytoplasmic domains of TLRs, and a model of the dimeric full-length TLR3 receptor in the activ ...

    Toll-like receptors (TLRs) play a key role in the innate and adaptive immune systems. While a lot of structural data is available for the extracellular and cytoplasmic domains of TLRs, and a model of the dimeric full-length TLR3 receptor in the active state was build, the conformation of the transmembrane (TM) domain and juxtamembrane regions in TLR dimers is still unclear. In the present work, we study the transmembrane and juxtamembrane parts of human TLR4 receptor using solution NMR spectroscopy in a variety of membrane mimetics, including phospholipid bicelles. We show that the juxtamembrane hydrophobic region of TLR4 includes a part of long TM α-helix. We report the dimerization interface of the TM domain and claim that long TM domains with transmembrane charged aminoacids is a common feature of human toll-like receptors. This fact is analyzed from the viewpoint of protein activation mechanism, and a model of full-length TLR4 receptor in the dimeric state has been proposed.


    Organizational Affiliation

    Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Mikluho-Maklaya 16/10, Moscow, 117997, Russian Federation.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Toll-like receptor 4
A
48Homo sapiensMutation(s): 0 
Gene Names: TLR4
EC: 3.2.2.6
Find proteins for O00206 (Homo sapiens)
Go to UniProtKB:  O00206
NIH Common Fund Data Resources
PHAROS  O00206
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 5NAM Olderado

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
RSFRussian Federation14-14-00573

Revision History 

  • Version 1.0: 2017-09-06
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection