6OIK

Muscarinic acetylcholine receptor 2-Go complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structures of the M1 and M2 muscarinic acetylcholine receptor/G-protein complexes.

Maeda, S.Qu, Q.Robertson, M.J.Skiniotis, G.Kobilka, B.K.

(2019) Science 364: 552-557

  • DOI: 10.1126/science.aaw5188
  • Primary Citation of Related Structures:  
    6OIK, 6OIJ

  • PubMed Abstract: 
  • Muscarinic acetylcholine receptors are G protein-coupled receptors that respond to acetylcholine and play important signaling roles in the nervous system. There are five muscarinic receptor subtypes (M1R to M5R), which, despite sharing a high degree of sequence identity in the transmembrane region, couple to different heterotrimeric GTP-binding proteins (G proteins) to transmit signals ...

    Muscarinic acetylcholine receptors are G protein-coupled receptors that respond to acetylcholine and play important signaling roles in the nervous system. There are five muscarinic receptor subtypes (M1R to M5R), which, despite sharing a high degree of sequence identity in the transmembrane region, couple to different heterotrimeric GTP-binding proteins (G proteins) to transmit signals. M1R, M3R, and M5R couple to the G q/ 11 family, whereas M2R and M4R couple to the G i/ o family. Here, we present and compare the cryo-electron microscopy structures of M1R in complex with G 11 and M2R in complex with G oA The M1R-G 11 complex exhibits distinct features, including an extended transmembrane helix 5 and carboxyl-terminal receptor tail that interacts with G protein. Detailed analysis of these structures provides a framework for understanding the molecular determinants of G-protein coupling selectivity.


    Organizational Affiliation

    Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA. yiorgo@stanford.edu kobilka@stanford.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Muscarinic acetylcholine receptor M2,Muscarinic acetylcholine receptor M2 R353Homo sapiensMutation(s): 3 
Gene Names: CHRM2
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
M2 muscarinic acetylcholine receptor in complex with Go
Find proteins for P08172 (Homo sapiens)
Explore P08172 
Go to UniProtKB:  P08172
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PHAROS:  P08172
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(o) subunit alpha A354Homo sapiensMutation(s): 4 
Gene Names: GNAO1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
M2 muscarinic acetylcholine receptor in complex with Go
Find proteins for P09471 (Homo sapiens)
Explore P09471 
Go to UniProtKB:  P09471
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PHAROS:  P09471
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 B345Homo sapiensMutation(s): 0 
Gene Names: GNB1
Find proteins for P62873 (Homo sapiens)
Explore P62873 
Go to UniProtKB:  P62873
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PHAROS:  P62873
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 G71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
M2 muscarinic acetylcholine receptor in complex with Go
Find proteins for P59768 (Homo sapiens)
Explore P59768 
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PHAROS:  P59768
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody fragment H256Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2CU
Query on 2CU

Download Ideal Coordinates CCD File 
R
3-amino-5-chloro-N-cyclopropyl-4-methyl-6-[2-(4-methylpiperazin-1-yl)-2-oxoethoxy]thieno[2,3-b]pyridine-2-carboxamide
C19 H24 Cl N5 O3 S
TYTGOXSAAQWLPJ-UHFFFAOYSA-N
 Ligand Interaction
IXO
Query on IXO

Download Ideal Coordinates CCD File 
R
4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium
C10 H17 N2 O2
WXXOCGISBCTWPW-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM083118

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-05-22
    Changes: Data collection, Database references
  • Version 1.2: 2019-05-29
    Changes: Data collection, Database references
  • Version 1.3: 2020-01-08
    Changes: Author supporting evidence