5GY7

X-Ray structure of H243I mutant of UDP-Galactose 4-epimerase from E.coli:evidence for existence of open and closed active site during catalysis.

• PDB DOI: https://doi.org/10.2210/pdb5GY7/pdb

• Classification: ISOMERASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2016-09-21 Released: 2016-11-30 
• Deposition Author(s): Singh, N., Tiwari, P., Phulera, S., Dixit, A., Choudhury, D.
• Funding Organization(s): Department of Biotechnology

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.43 Å
• R-Value Free: 0.160 
• R-Value Work: 0.134 
• R-Value Observed: 0.135 

Literature

X-Ray structure of H243I mutant of UDP-Galactose 4-epimerase from E.coli:evidence for existence of open and closed active site during catalysis.

Singh, N., Tiwari, P., Phulera, S., Dixit, A., Choudhury, D.

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 (software)

Macromolecule Content

• Total Structure Weight: 78.51 kDa 
• Atom Count: 5,934 
• Modelled Residue Count: 676 
• Deposited Residue Count: 688 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UDP-glucose 4-epimerase	A, B	344	Escherichia coli K-12	Mutation(s): 1  Gene Names: galE, galD, b0759, JW0742 EC: 5.1.3.2
UniProt
Find proteins for P09147 (Escherichia coli (strain K12)) Explore P09147  Go to UniProtKB:  P09147

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAD	D [auth A], G [auth B]	NICOTINAMIDE-ADENINE-DINUCLEOTIDE C21 H27 N7 O14 P2 BAWFJGJZGIEFAR-NNYOXOHSSA-N
UDP	C [auth A], F [auth B]	URIDINE-5'-DIPHOSPHATE C9 H14 N2 O12 P2 XCCTYIAWTASOJW-XVFCMESISA-N
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
NO3	H [auth B]	NITRATE ION N O3 NHNBFGGVMKEFGY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.43 Å
• R-Value Free: 0.160 
• R-Value Work: 0.134 
• R-Value Observed: 0.135 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.11	α = 90
b = 91.16	β = 99.87
c = 80.26	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2016-11-30 
Deposition Author(s): Singh, N., Tiwari, P., Phulera, S., Dixit, A., Choudhury, D.

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Funding Organization	Location	Grant Number
Department of Biotechnology	India	DBT- Builder BT/PR5006/INF/22/153/2012

Revision History  

• Version 1.0: 2016-11-30
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references, Refinement description