Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 24.30 kDa 
• Atom Count: 1380 
• Modelled Residue Count: 169 
• Deposited Residue Count: 211 
• Unique protein chains: 1

2G3Y

Crystal structure of the human small GTPase GEM

• DOI: 10.2210/pdb2G3Y/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-02-21 Released: 2006-04-18 
• Deposition Author(s): Ugochukwu, E., Soundararajan, M., Elkins, J., Gileadi, C., Schoch, G., Sobott, F., Fedorov, O., Bray, J., Pantic, N., Berridge, G., Burgess, N., Lee, W.H., Turnbull, A., Sundstrom, M., Arrowsmith, C., Weigelt, J., Edwards, A., von Delft, F., Doyle, D., Structural Genomics Consortium (SGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.269 
• R-Value Work: 0.218 
• R-Value Observed: 0.220 

Literature

Crystal structure of the human small GTPase GEM

Ugochukwu, E., Soundararajan, M., Elkins, J., Schoch, G., Gileadi, C., Doyle, D.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GTP-binding protein GEM	A	211	Homo sapiens	Mutation(s): 0  Gene Names: GEM, KIR
Find proteins for P55040 (Homo sapiens) Explore P55040  Go to UniProtKB:  P55040
NIH Common Fund Data Resources
PHAROS:  P55040 GTEx:  ENSG00000164949

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP	A	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.269 
• R-Value Work: 0.218 
• R-Value Observed: 0.220 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.242	α = 90
b = 51.242	β = 90
c = 173.873	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-02-21 
• Released Date: 2006-04-18 
Deposition Author(s): Ugochukwu, E., Soundararajan, M., Elkins, J., Gileadi, C., Schoch, G., Sobott, F., Fedorov, O., Bray, J., Pantic, N., Berridge, G., Burgess, N., Lee, W.H., Turnbull, A., Sundstrom, M., Arrowsmith, C., Weigelt, J., Edwards, A., von Delft, F., Doyle, D., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2006-04-18
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance