5DSG

Structure of the M4 muscarinic acetylcholine receptor (M4-mT4L) bound to tiotropium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Crystal structures of the M1 and M4 muscarinic acetylcholine receptors.

Thal, D.M.Sun, B.Feng, D.Nawaratne, V.Leach, K.Felder, C.C.Bures, M.G.Evans, D.A.Weis, W.I.Bachhawat, P.Kobilka, T.S.Sexton, P.M.Kobilka, B.K.Christopoulos, A.

(2016) Nature 531: 335-340

  • DOI: 10.1038/nature17188
  • Primary Citation of Related Structures:  
    5DSG, 5CXV

  • PubMed Abstract: 
  • Muscarinic M1-M5 acetylcholine receptors are G-protein-coupled receptors that regulate many vital functions of the central and peripheral nervous systems. In particular, the M1 and M4 receptor subtypes have emerged as attractive drug targets for trea ...

    Muscarinic M1-M5 acetylcholine receptors are G-protein-coupled receptors that regulate many vital functions of the central and peripheral nervous systems. In particular, the M1 and M4 receptor subtypes have emerged as attractive drug targets for treatments of neurological disorders, such as Alzheimer's disease and schizophrenia, but the high conservation of the acetylcholine-binding pocket has spurred current research into targeting allosteric sites on these receptors. Here we report the crystal structures of the M1 and M4 muscarinic receptors bound to the inverse agonist, tiotropium. Comparison of these structures with each other, as well as with the previously reported M2 and M3 receptor structures, reveals differences in the orthosteric and allosteric binding sites that contribute to a role in drug selectivity at this important receptor family. We also report identification of a cluster of residues that form a network linking the orthosteric and allosteric sites of the M4 receptor, which provides new insight into how allosteric modulation may be transmitted between the two spatially distinct domains.


    Organizational Affiliation

    Drug Discovery Biology and Department of Pharmacology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, 3052, Victoria, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Muscarinic acetylcholine receptor M4,Endolysin,Endolysin,Muscarinic acetylcholine receptor M4AB422Homo sapiensEscherichia virus T4Mutation(s): 2 
Gene Names: CHRM4
EC: 3.2.1.17
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs): Class A
Protein: 
M4 human muscarinic acetylcholine receptor with bound tiotropium
Find proteins for P08173 (Homo sapiens)
Explore P08173 
Go to UniProtKB:  P08173
NIH Common Fund Data Resources
PHAROS  P08173
Find proteins for P00720 (Enterobacteria phage T4)
Explore P00720 
Go to UniProtKB:  P00720
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0HK
Query on 0HK

Download Ideal Coordinates CCD File 
A, B
(1R,2R,4S,5S,7S)-7-{[hydroxy(dithiophen-2-yl)acetyl]oxy}-9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.0~2,4~]nonane
C19 H22 N O4 S2
LERNTVKEWCAPOY-DZZGSBJMSA-N
 Ligand Interaction
OLC
Query on OLC

Download Ideal Coordinates CCD File 
A, B
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
EDT
Query on EDT

Download Ideal Coordinates CCD File 
A
{[-(BIS-CARBOXYMETHYL-AMINO)-ETHYL]-CARBOXYMETHYL-AMINO}-ACETIC ACID
C10 H16 N2 O8
KCXVZYZYPLLWCC-UHFFFAOYSA-N
 Ligand Interaction
OLA
Query on OLA

Download Ideal Coordinates CCD File 
A, B
OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
 Ligand Interaction
P6G
Query on P6G

Download Ideal Coordinates CCD File 
A, B
HEXAETHYLENE GLYCOL
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
PG6
Query on PG6

Download Ideal Coordinates CCD File 
B
1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE
C12 H26 O6
DMDPGPKXQDIQQG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.49α = 90
b = 172.04β = 94.37
c = 60.66γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
Aimlessdata scaling
PHASERphasing
Cootmodel building
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (NHMRC, Australia)AustraliaAPP1055134

Revision History 

  • Version 1.0: 2016-03-16
    Type: Initial release
  • Version 1.1: 2016-03-23
    Changes: Database references
  • Version 1.2: 2016-03-30
    Changes: Database references
  • Version 1.3: 2017-09-20
    Changes: Author supporting evidence, Database references, Derived calculations, Refinement description
  • Version 1.4: 2017-10-11
    Changes: Data collection
  • Version 1.5: 2020-01-08
    Changes: Author supporting evidence