Biological Assembly 1  

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Hetero 6-mer - A2B2C2 Pseudo Symmetry: Cyclic - C2  (3D View)
Pseudo Stoichiometry: Hetero 6-mer -A4B2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 96554.63 
• Atom Count: 5812 
• Residue Count: 834 
• Unique protein chains: 3

1AZS

COMPLEX OF GS-ALPHA WITH THE CATALYTIC DOMAINS OF MAMMALIAN ADENYLYL CYCLASE

• DOI: 10.2210/pdb1AZS/pdb

• Classification: COMPLEX (LYASE/HYDROLASE)
• Organism(s): Canis lupus familiaris, Rattus norvegicus, Bos taurus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 1 


• Deposited: 1997-11-20 Released: 1998-02-25 
• Deposition Author(s): Tesmer, J.J.G., Sprang, S.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.282 
• R-Value Work: 0.219 

Literature

Crystal structure of the catalytic domains of adenylyl cyclase in a complex with Gsalpha.GTPgammaS.

Tesmer, J.J., Sunahara, R.K., Gilman, A.G., Sprang, S.R.

(1997) Science 278: 1907-1916

• PubMed: 9417641 


• PubMed Abstract: 
  

The crystal structure of a soluble, catalytically active form of adenylyl cyclase in a complex with its stimulatory heterotrimeric G protein alpha subunit (Gsalpha) and forskolin was determined to a resolution of 2.3 angstroms. When P-site inhibitors were soaked into native crystals of the complex, the active site of adenylyl cyclase was located and structural elements important for substrate recognition and catalysis were identified. On the basis of these and other structures, a molecular mechanism is proposed for the activation of adenylyl cyclase by Gsalpha.

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Organizational Affiliation: 

Howard Hughes Medical Institute and Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75235-9050, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
VC1	A	220	Canis lupus familiaris	Mutation(s): 1  Gene Names: ADCY5 EC: 4.6.1.1
Find proteins for P30803 (Canis lupus familiaris) Go to Gene View: ADCY5 Go to UniProtKB:  P30803

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
IIC2	B	212	Rattus norvegicus	Mutation(s): 0  Gene Names: Adcy2 EC: 4.6.1.1
Find proteins for P26769 (Rattus norvegicus) Go to UniProtKB:  P26769

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
GS-ALPHA	C	402	Bos taurus	Mutation(s): 0  Gene Names: GNAS (GNAS1)
Find proteins for P04896 (Bos taurus) Go to Gene View: GNAS Go to UniProtKB:  P04896

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
FKP	A	METHYLPIPERAZINOFORSKOLIN C30 H50 N2 O7 UNNWBVSRDSMIDQ-QAMJDCALSA-N
MG	C	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
GSP	C	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE C10 H16 N5 O13 P3 S XOFLBQFBSOEHOG-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.282 
• R-Value Work: 0.219 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 119.000	α = 90.00
b = 134.050	β = 90.00
c = 70.650	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
X-PLOR	refinement
X-PLOR	phasing
DENZO	data reduction
X-PLOR	model building

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-11-20 
• Released Date: 1998-02-25 
• Deposition Author(s): Tesmer, J.J.G., Sprang, S.R.

Revision History 

• Version 1.0: 1998-02-25
  Type: Initial release
• Version 1.1: 2008-03-03
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance