7XLO

Crystal Structure of the Catalytic Domain of Inosine Monophosphate Dehydrogenase (IMPDH) from Methanocaldococcus jannaschii

• PDB DOI: https://doi.org/10.2210/pdb7XLO/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Methanocaldococcus jannaschii
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-04-22 Released: 2022-05-11 
• Deposition Author(s): Bellur, A., Sharma, P., Balaram, H.
• 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: 2.60 Å
• R-Value Free: 0.276 
• R-Value Work: 0.254 
• R-Value Observed: 0.255 

Literature

Crystal Structure of the Catalytic Domain of Inosine Monophosphate Dehydrogenase (IMPDH) from Methanocaldococcus jannaschii

Bellur, A., Sharma, P., Balaram, H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 84.51 kDa 
• Atom Count: 4,921 
• Modelled Residue Count: 650 
• Deposited Residue Count: 796 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Inosine-5'-monophosphate dehydrogenase	A, B	398	Methanocaldococcus jannaschii	Mutation(s): 0  Gene Names: guaB, MJ1616 EC: 1.1.1.205
UniProt
Find proteins for Q59011 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)) Explore Q59011  Go to UniProtKB:  Q59011

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.276 
• R-Value Work: 0.254 
• R-Value Observed: 0.255 
• Space Group: I 4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 97.65	α = 90
b = 97.65	β = 90
c = 168.22	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-05-11 
Deposition Author(s): Bellur, A., Sharma, P., Balaram, H.

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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: 2022-05-11
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description