Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 58.09 kDa 
• Atom Count: 4,237 
• Modelled Residue Count: 500 
• Deposited Residue Count: 500 
• Unique protein chains: 1

 1A8H

METHIONYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS

• PDB DOI:  https://doi.org/10.2210/pdb1A8H/pdb

• Classification: AMINOACYL-TRNA SYNTHETASE
• Organism(s): Thermus thermophilus HB8
• Mutation(s): No 


• Deposited: 1998-03-26 Released: 1999-05-04 
• Deposition Author(s): Sugiura, I., Nureki, O., Ugaji, Y., Kuwabara, S., Lober, B., Giege, R., Moras, D., Yokoyama, S., Konno, M., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.205 
• R-Value Observed: 0.205 

Literature

The 2.0 A crystal structure of Thermus thermophilus methionyl-tRNA synthetase reveals two RNA-binding modules.

Sugiura, I., Nureki, O., Ugaji-Yoshikawa, Y., Kuwabara, S., Shimada, A., Tateno, M., Lorber, B., Giege, R., Moras, D., Yokoyama, S., Konno, M.

(2000) Structure 8: 197-208

• PubMed: 10673435 
• DOI: https://doi.org/10.1016/s0969-2126(00)00095-2
• Primary Citation of Related Structures:  
  1A8H


• PubMed Abstract: 
  

The 20 aminoacyl-tRNA synthetases are divided into two classes, I and II. The 10 class I synthetases are considered to have in common the catalytic domain structure based on the Rossmann fold, which is totally different from the class II catalytic domain structure. The class I synthetases are further divided into three subclasses, a, b and c, according to sequence homology. No conserved structural features for tRNA recognition by class I synthetases have been established.

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Organizational Affiliation: 

Department of Chemistry, Faculty of Science, Ochanomizu University, Otsuka, Bunkyo-Ku, 112-8610, Japan.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
METHIONYL-TRNA SYNTHETASE	A	500	Thermus thermophilus HB8	Mutation(s): 0  Gene Names: metG, metS, TTHA1298 EC: 6.1.1.10
UniProt
Find proteins for P23395 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore P23395  Go to UniProtKB:  P23395

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.205 
• R-Value Observed: 0.205 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.02	α = 90
b = 82.47	β = 90
c = 116.92	γ = 90

Software Package:

Software Name	Purpose
SHARP	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-05-04 
Deposition Author(s): Sugiura, I., Nureki, O., Ugaji, Y., Kuwabara, S., Lober, B., Giege, R., Moras, D., Yokoyama, S., Konno, M., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Revision History  

• Version 1.0: 1999-05-04
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance