8GR3

Crystal structure of K151L/Y158F mutant of GATase subunit of Methanocaldococcus jannaschii GMP synthetase

• PDB DOI: https://doi.org/10.2210/pdb8GR3/pdb

• Classification: TRANSFERASE
• Organism(s): Methanocaldococcus jannaschii DSM 2661
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2022-08-31 Released: 2023-07-12 
• Deposition Author(s): Chandrashekarmath, A., Bellur, A.
• Funding Organization(s): Department of Biotechnology (DBT, India), Science and Engineering Research Board (SERB)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.241 
• R-Value Work: 0.207 
• R-Value Observed: 0.209 

Literature

Crystal structure of K151L/Y158F mutant of GATase subunit of Methanocaldococcus jannaschii GMP synthetase

Chandrashekarmath, A., Bellur, A., Balaram, H.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 84.65 kDa 
• Atom Count: 6,074 
• Modelled Residue Count: 752 
• Deposited Residue Count: 752 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GMP synthase [glutamine-hydrolyzing] subunit A	A, B, C, D	188	Methanocaldococcus jannaschii DSM 2661	Mutation(s): 2  Gene Names: guaAA, MJ1575 EC: 6.3.5.2
UniProt
Find proteins for Q58970 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)) Explore Q58970  Go to UniProtKB:  Q58970

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	E [auth A], F [auth B], G [auth C], H [auth C], I [auth D], J [auth D]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.241 
• R-Value Work: 0.207 
• R-Value Observed: 0.209 
• Space Group: P 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.41	α = 90
b = 93.41	β = 90
c = 118.25	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-07-12 
Deposition Author(s): Chandrashekarmath, A., Bellur, A.

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Funding Organization	Location	Grant Number
Department of Biotechnology (DBT, India)	India	--
Science and Engineering Research Board (SERB)	India	--

Revision History  

• Version 1.0: 2023-07-12
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description