1AB8

RAT TYPE II ADENYLYL CYCLASE C2 DOMAIN/FORSKOLIN COMPLEX

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

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This is version 1.3 of the entry. See complete history. 


Literature

Structure of the adenylyl cyclase catalytic core.

Zhang, G., Liu, Y., Ruoho, A.E., Hurley, J.H.

(1997) Nature 386: 247-253

  • DOI: 10.1038/386247a0
  • Primary Citation of Related Structures:  
    1AB8

  • PubMed Abstract: 

    • Mammalian adenylyl cyclases contain two conserved regions, C1 and C2, which are responsible for forskolin- and G-protein-stimulated catalysis. The structure of the C2 catalytic region of type II rat adenylyl cyclase has an alpha/beta class fold in a wreath-like dimer, which has a central cleft ...

    Mammalian adenylyl cyclases contain two conserved regions, C1 and C2, which are responsible for forskolin- and G-protein-stimulated catalysis. The structure of the C2 catalytic region of type II rat adenylyl cyclase has an alpha/beta class fold in a wreath-like dimer, which has a central cleft. Two forskolin molecules bind in hydrophobic pockets at the ends of cleft. The central part of the cleft is lined by charged residues implicated in ATP binding. Forskolin appears to activate adenylyl cyclase by promoting the assembly of the active dimer and by direct interaction within the catalytic cleft. Other adenylyl cyclase regulators act at the dimer interface or on a flexible C-terminal region.

    Organizational Affiliation: 

    Laboratory of Molecular Biology, National Institute of Diabetes, Digestive, and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0580, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ADENYLYL CYCLASEA, B220Rattus norvegicusMutation(s): 0 
Gene Names: PPROEX-1, Adcy2
EC: 4.6.1.1
UniProt
Find proteins for P26769 (Rattus norvegicus)
Explore P26769 
Go to UniProtKB:  P26769
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP26769
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FOK
Query on FOK
Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]		FORSKOLIN
C22 H34 O7
OHCQJHSOBUTRHG-KGGHGJDLSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.3α = 90
b = 81.3β = 90
c = 180.5γ = 90
Software Package:
Software NamePurpose
PHASESphasing
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-05-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model