1AZS

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

PDB DOI: https://doi.org/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): Yes

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

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.282
R-Value Work: 0.219
R-Value Observed: 0.219

Starting Model: experimental
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Ligand Structure Quality Assessment

This is version 1.5 of the entry. See complete history.

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 Search on PubMed
DOI: https://doi.org/10.1126/science.278.5345.1907
Primary Citation of Related Structures:
1AZS

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.

Organizational Affiliation

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

Macromolecule Content

Total Structure Weight: 96.55 kDa
Atom Count: 5,881
Modelled Residue Count: 718
Deposited Residue Count: 834
Unique protein chains: 3

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
VC1	A	220	Canis lupus familiaris	Mutation(s): 1 Gene Names: ADENYLYL CYCLASE TYPE V EC: 4.6.1.1
UniProt
Find proteins for P30803 (Canis lupus familiaris) Explore P30803 Go to UniProtKB: P30803
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P30803
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
IIC2	B	212	Rattus norvegicus	Mutation(s): 0 Gene Names: ADENYLYL CYCLASE TYPE II EC: 4.6.1.1
UniProt
Find proteins for P26769 (Rattus norvegicus) Explore P26769 Go to UniProtKB: P26769
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P26769
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
GS-ALPHA	C	402	Bos taurus	Mutation(s): 0 Gene Names: GNAS EC: 3.6.5
UniProt
Find proteins for P04896 (Bos taurus) Explore P04896 Go to UniProtKB: P04896
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P04896
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
FKP Query on FKP Download Ideal Coordinates CCD File SDF format, chain D [auth A] MOL2 format, chain D [auth A] mmCIF format, chain D [auth A]	D [auth A]	METHYLPIPERAZINOFORSKOLIN C₃₀ H₅₀ N₂ O₇ UNNWBVSRDSMIDQ-QAMJDCALSA-N		Interactions Focus chain D [auth A] Interactions & Density Focus chain D [auth A]
GSP Query on GSP Download Ideal Coordinates CCD File SDF format, chain F [auth C] MOL2 format, chain F [auth C] mmCIF format, chain F [auth C]	F [auth C]	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE C₁₀ H₁₆ N₅ O₁₃ P₃ S XOFLBQFBSOEHOG-UUOKFMHZSA-N		Interactions Focus chain F [auth C] Interactions & Density Focus chain F [auth C]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain E [auth C] MOL2 format, chain E [auth C] mmCIF format, chain E [auth C]	E [auth C]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain E [auth C] Interactions & Density Focus chain E [auth C]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.282
R-Value Work: 0.219
R-Value Observed: 0.219
Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 119	α = 90
b = 134.05	β = 90
c = 70.65	γ = 90

Software Package:

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

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 1998-02-25

Deposition Author(s):

Tesmer, J.J.G.

Sprang, S.R.

Revision History (Full details and data files)

Version 1.0: 1998-02-25
Type: Initial release
Version 1.1: 2008-03-03
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2021-11-03
Changes: Database references, Derived calculations, Other
Version 1.4: 2023-08-02
Changes: Refinement description
Version 1.5: 2024-05-22
Changes: Data collection