3I1F

Gamma-subunit of the translation initiation factor 2 from S. solfataricus in complex with Gpp(CH2)p

• PDB DOI: https://doi.org/10.2210/pdb3I1F/pdb

• Classification: TRANSLATION
• Organism(s): Saccharolobus solfataricus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-06-26 Released: 2010-06-30 
• Deposition Author(s): Stolboushkina, E.A., Nikonov, S.V., Nikulin, A.D., Blaesi, U., Garber, M.B., Nikonov, O.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.266 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 

Starting Model: experimental

Literature

5-prime-triphosphate end of mRNA recognizes the second GTP-binding site on the gamma-subunit of the archaeal translation initiation factor 2

Stolboushkina, E.A., Nikonov, S.V., Nikulin, A.D., Blaesi, U., Garber, M.B., Nikonov, O.S.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 93.12 kDa 
• Atom Count: 6,867 
• Modelled Residue Count: 828 
• Deposited Residue Count: 830 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Translation initiation factor 2 subunit gamma	A, B	415	Saccharolobus solfataricus	Mutation(s): 0  Gene Names: eif2g EC: 3.6.5.3
UniProt
Find proteins for Q980A5 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)) Explore Q980A5  Go to UniProtKB:  Q980A5

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GCP	C [auth A], F [auth B]	PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER C11 H18 N5 O13 P3 PHBDHXOBFUBCJD-KQYNXXCUSA-N
PO4	D [auth A], E [auth A], G [auth B], H [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.266 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 
• Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 95.77	α = 90
b = 95.77	β = 90
c = 165.13	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
PHASER	phasing
PHENIX	refinement
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-06-30 
Deposition Author(s): Stolboushkina, E.A., Nikonov, S.V., Nikulin, A.D., Blaesi, U., Garber, M.B., Nikonov, O.S.

Revision History  

• Version 1.0: 2010-06-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2024-10-30
  Changes: Structure summary