ISDA

Deposition Date 1996-08-07

Release Date 1997-03-12

Last Version Date 2024-10-16

Entry Detail

PDB ID:

1GOT

Keywords:

COMPLEX (GTP-BINDING/TRANSDUCER)

Title:

HETEROTRIMERIC COMPLEX OF A GT-ALPHA/GI-ALPHA CHIMERA AND THE GT-BETA-GAMMA SUBUNITS

Biological Source:

Source Organism:

Bos taurus (Taxon ID: 9913)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.29

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

C 1 2 1

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:GT-ALPHA/GI-ALPHA CHIMERA
Gene (Uniprot):GNAT1
Chain IDs:A
Chain Length:350
Number of Molecules:1
Biological Source:Bos taurus

UniProt ID:P04695 Pfam ID:PF00503

Protein Blast

Polymer Type:polypeptide(L)
Molecule:GT-BETA
Gene (Uniprot):GNB1
Chain IDs:B
Chain Length:340
Number of Molecules:1
Biological Source:Bos taurus

UniProt ID:P62871 Pfam ID:PF00400

Protein Blast

Polymer Type:polypeptide(L)
Molecule:GT-GAMMA
Gene (Uniprot):GNGT1
Chain IDs:C (auth: G)
Chain Length:73
Number of Molecules:1
Biological Source:Bos taurus

UniProt ID:P02698 Pfam ID:PF00631

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
MSE	A	MET	SELENOMETHIONINE

Ligand Molecules

GDP

Primary Citation

The 2.0 A crystal structure of a heterotrimeric G protein.

Lambright, D.G, Sondek, J, Bohm, A, Skiba, N.P, Hamm, H.E, Sigler, P.B, Sondek, J, Bohm, A, Lambright, D.G, Hamm, H.E, Sigler, P.B, Lambright, D.G, Noel, J.P, Hamm, H.E, Sigler, P.B, Sondek, J, Lambright, D.G, Noel, J.P, Hamm, H.E, Sigler, P.B, Noel, J.P, Hamm, H.E, Sigler, P.B.Show

Nature 379 311 319 (1996)

PMID: 8552184 DOI: 10.1038/379311a0

Abstact

The structure of a heterotrimeric G protein reveals the mechanism of the nucleotide-dependent engagement of the alpha and beta gamma subunits that regulates their interaction with receptor and effector molecules. The interaction involves two distinct interfaces and dramatically alters the conformation of the alpha but not of the beta gamma subunits. The location of the known sites for post-translational modification and receptor coupling suggest a plausible orientation with respect to the membrane surface and an activated heptahelical receptor.

Legend

Protein

Chemical

Disease

Primary Citation of related structures