2GI3

Crystal structure of Glutamyl-tRNA(Gln) amidotransferase subunit A (tm1272) from THERMOTOGA MARITIMA at 1.80 A resolution

• PDB DOI: https://doi.org/10.2210/pdb2GI3/pdb

• Classification: LIGASE
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-03-28 Released: 2006-04-11 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.201 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 

Literature

Crystal structure of Glutamyl-tRNA(Gln) amidotransferase subunit A (tm1272) from THERMOTOGA MARITIMA at 1.80 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 53.79 kDa 
• Atom Count: 3,921 
• Modelled Residue Count: 452 
• Deposited Residue Count: 476 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamyl-tRNA(Gln) amidotransferase subunit A	A	476	Thermotoga maritima	Mutation(s): 13  Gene Names: gatA EC: 6.3.5 (PDB Primary Data), 6.3.5.7 (UniProt)
UniProt
Find proteins for Q9X0Z9 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q9X0Z9  Go to UniProtKB:  Q9X0Z9

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MPD	E [auth A], F [auth A], G [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
ACT	B [auth A], C [auth A], D [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.201 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 
• Space Group: P 3₂ 2 1
• Diffraction Data: https://doi.org/10.18430/M32GI3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 131.776	α = 90
b = 131.776	β = 90
c = 61.987	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-04-11 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2006-04-11
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2023-01-25
  Changes: Database references, Derived calculations
• Version 1.4: 2024-11-13
  Changes: Data collection, Structure summary