ISDA: 2HT6

Deposition Date 2006-07-25

Release Date 2006-10-31

Last Version Date 2024-02-14

Entry Detail

PDB ID:

2HT6

Keywords:

SIGNALING PROTEIN

Title:

Crystal structure of Human Gem G-domain bound to GDP

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.28

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:GTP-binding protein GEM
Gene (Uniprot):GEM
Chain IDs:A, B
Chain Length:174
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P55040 Pfam ID:PF00071

Ligand Molecules

GDP

Primary Citation

Structure-function studies of the G-domain from human gem, a novel small G-protein.

Opatowsky, Y, Sasson, Y, Shaked, I, Ward, Y, Chomsky-Hecht, O, Litvak, Y, Selinger, Z, Kelly, K, Hirsch, J.A.Show

Febs Lett. 580 5959 5964 (2006)

PMID: 17052716 DOI: 10.1016/j.febslet.2006.09.067

Abstact

Gem, a member of the Rad,Gem/Kir subfamily of small G-proteins, has unique sequence features. We report here the crystallographic structure determination of the Gem G-domain in complex with nucleotide to 2.4 A resolution. Although the basic Ras protein fold is maintained, the Gem switch regions emphatically differ from the Ras paradigm. Our ensuing biochemical characterization indicates that Gem G-domain markedly prefers GDP over GTP. Two known functions of Gem are distinctly affected by spatially separated clusters of mutations.

Legend

Protein

Chemical

Disease

Primary Citation of related structures

Abstact

Feedback Form