3ICP | pdb_00003icp

Crystal Structure of UDP-galactose 4-epimerase

• PDB DOI: https://doi.org/10.2210/pdb3ICP/pdb

• Classification: ISOMERASE
• Organism(s): Pyrobaculum calidifontis JCM 11548
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2009-07-18 Released: 2010-07-21 
• Deposition Author(s): Sakuraba, H., Kawai, T., Yoneda, K., Ohshima, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 
  0.224 (Depositor), 0.221 (DCC) 
• R-Value Work: 
  0.204 (Depositor), 0.199 (DCC) 
• R-Value Observed: 
  0.205 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure of UDP-galactose 4-epimerase

Sakuraba, H., Kawai, T., Yoneda, K., Ohshima, T.

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: 35.15 kDa 
• Atom Count: 2,513 
• Modeled Residue Count: 295 
• Deposited Residue Count: 312 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NAD-dependent epimerase/dehydratase	A	312	Pyrobaculum calidifontis JCM 11548	Mutation(s): 0
UniProt
Find proteins for A3MUJ4 (Pyrobaculum calidifontis (strain DSM 21063 / JCM 11548 / VA1)) Explore A3MUJ4  Go to UniProtKB:  A3MUJ4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAD	B [auth A]	NICOTINAMIDE-ADENINE-DINUCLEOTIDE C21 H27 N7 O14 P2 BAWFJGJZGIEFAR-NNYOXOHSSA-N
PO4	C [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free:  0.224 (Depositor), 0.221 (DCC) 
• R-Value Work:  0.204 (Depositor), 0.199 (DCC) 
• R-Value Observed: 0.205 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 101.055	α = 90
b = 101.055	β = 90
c = 75.995	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-07-21 
Deposition Author(s): Sakuraba, H., Kawai, T., Yoneda, K., Ohshima, T.

Revision History  

• Version 1.0: 2010-07-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description