6R3Q

The structure of a membrane adenylyl cyclase bound to an activated stimulatory G protein


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The structure of a membrane adenylyl cyclase bound to an activated stimulatory G protein.

Qi, C.Sorrentino, S.Medalia, O.Korkhov, V.M.

(2019) Science 364: 389-394

  • DOI: https://doi.org/10.1126/science.aav0778
  • Primary Citation of Related Structures:  
    6R3Q, 6R4O, 6R4P

  • PubMed Abstract: 

    Membrane-integral adenylyl cyclases (ACs) are key enzymes in mammalian heterotrimeric GTP-binding protein (G protein)-dependent signal transduction, which is important in many cellular processes. Signals received by the G protein-coupled receptors are conveyed to ACs through G proteins to modulate the levels of cellular cyclic adenosine monophosphate (cAMP). Here, we describe the cryo-electron microscopy structure of the bovine membrane AC9 bound to an activated G protein αs subunit at 3.4-angstrom resolution. The structure reveals the organization of the membrane domain and helical domain that spans between the membrane and catalytic domains of AC9. The carboxyl-terminal extension of the catalytic domain occludes both the catalytic and the allosteric sites of AC9, inducing a conformation distinct from the substrate- and activator-bound state, suggesting a regulatory role in cAMP production.


  • Organizational Affiliation

    Institute of Biochemistry, ETH Zurich, Zurich, Switzerland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Adenylate cyclase 91,637Bos taurusMutation(s): 0 
Gene Names: ADCY9BOS_22626
Membrane Entity: Yes 
UniProt
Find proteins for E1BM79 (Bos taurus)
Explore E1BM79 
Go to UniProtKB:  E1BM79
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupE1BM79
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short404Bos taurusMutation(s): 0 
Gene Names: GNASGNAS1
Membrane Entity: Yes 
UniProt
Find proteins for P04896 (Bos taurus)
Explore P04896 
Go to UniProtKB:  P04896
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04896
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GSP
Query on GSP

Download Ideal Coordinates CCD File 
C [auth B]5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE
C10 H16 N5 O13 P3 S
XOFLBQFBSOEHOG-UUOKFMHZSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION2.1.0
MODEL REFINEMENTPHENIX1.11.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerland150665

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-11-06
    Changes: Data collection, Refinement description