6OL9

Structure of the M5 muscarinic acetylcholine receptor (M5-T4L) bound to tiotropium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.54 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 

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Literature

Crystal structure of the M5muscarinic acetylcholine receptor.

Vuckovic, Z.Gentry, P.R.Berizzi, A.E.Hirata, K.Varghese, S.Thompson, G.van der Westhuizen, E.T.Burger, W.A.C.Rahmani, R.Valant, C.Langmead, C.J.Lindsley, C.W.Baell, J.B.Tobin, A.B.Sexton, P.M.Christopoulos, A.Thal, D.M.

(2019) Proc Natl Acad Sci U S A 116: 26001-26007

  • DOI: 10.1073/pnas.1914446116
  • Primary Citation of Related Structures:  
    6OL9

  • PubMed Abstract: 
  • The human M 5 muscarinic acetylcholine receptor (mAChR) has recently emerged as an exciting therapeutic target for treating a range of disorders, including drug addiction. However, a lack of structural information for this receptor subtype has limited further drug development and validation ...

    The human M 5 muscarinic acetylcholine receptor (mAChR) has recently emerged as an exciting therapeutic target for treating a range of disorders, including drug addiction. However, a lack of structural information for this receptor subtype has limited further drug development and validation. Here we report a high-resolution crystal structure of the human M 5 mAChR bound to the clinically used inverse agonist, tiotropium. This structure allowed for a comparison across all 5 mAChR family members that revealed important differences in both orthosteric and allosteric sites that could inform the rational design of selective ligands. These structural studies, together with chimeric swaps between the extracellular regions of the M 2 and M 5 mAChRs, provided structural insight into kinetic selectivity, where ligands show differential residency times between related family members. Collectively, our study provides important insights into the nature of orthosteric and allosteric ligand interaction across the mAChR family that could be exploited for the design of selective drugs.


    Organizational Affiliation

    Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; arthur.christopoulos@monash.edu david.thal@monash.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Muscarinic acetylcholine receptor M5, T4 Lysozyme fusionA480Homo sapiensEscherichia virus T4Mutation(s): 0 
Gene Names: CHRM5eT4Tp126
EC: 3.2.1.17
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P08912 (Homo sapiens)
Explore P08912 
Go to UniProtKB:  P08912
PHAROS:  P08912
Find proteins for D9IEF7 (Enterobacteria phage T4)
Explore D9IEF7 
Go to UniProtKB:  D9IEF7
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0HK (Subject of Investigation/LOI)
Query on 0HK

Download Ideal Coordinates CCD File 
D [auth A](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 (Subject of Investigation/LOI)
Query on OLC

Download Ideal Coordinates CCD File 
F [auth A](2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
P33
Query on P33

Download Ideal Coordinates CCD File 
E [auth A]3,6,9,12,15,18-HEXAOXAICOSANE-1,20-DIOL
C14 H30 O8
XPJRQAIZZQMSCM-UHFFFAOYSA-N
 Ligand Interaction
OLA (Subject of Investigation/LOI)
Query on OLA

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.54 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.06α = 90
b = 63.31β = 102.11
c = 91.62γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom201529/Z/16/Z
National Health and Medical Research Council (NHMRC, Australia)AustraliaAPP1138448

Revision History  (Full details and data files)

  • Version 1.0: 2019-12-11
    Type: Initial release
  • Version 1.1: 2020-01-01
    Changes: Database references