Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 63525.66 
• Atom Count: 4353 
• Residue Count: 566 
• Unique protein chains: 1

1IHO

CRYSTAL APO-STRUCTURE OF PANTOTHENATE SYNTHETASE FROM E. COLI

• DOI: 10.2210/pdb1IHO/pdb

• Classification: LIGASE
• Organism(s): Escherichia coli (strain K12)
• Expression System: Escherichia coli


• Deposited: 2001-04-19 Released: 2001-05-30 
• Deposition Author(s): von Delft, F., Lewendon, A., Dhanaraj, V., Blundell, T.L., Abell, C., Smith, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Free: 0.254 
• R-Value Work: 0.212 

Literature

The crystal structure of E. coli pantothenate synthetase confirms it as a member of the cytidylyltransferase superfamily.

von Delft, F., Lewendon, A., Dhanaraj, V., Blundell, T.L., Abell, C., Smith, A.G.

(2001) Structure 9: 439-450

• PubMed: 11377204 


• PubMed Abstract: 
  

Pantothenate synthetase (EC 6.3.2.1) is the last enzyme of the pathway of pantothenate (vitamin B(5)) synthesis. It catalyzes the condensation of pantoate with beta-alanine in an ATP-dependent reaction.

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Organizational Affiliation: 

Department of Biochemistry, 80 Tennis Court Road, CB2 1GA, Cambridge, United Kingdom.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PANTOATE--BETA-ALANINE LIGASE	A, B	283	Escherichia coli (strain K12)	Mutation(s): 0  Gene Names: panC EC: 6.3.2.1
Find proteins for P31663 (Escherichia coli (strain K12)) Go to UniProtKB:  P31663

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
EDO	A, B	1,2-ETHANEDIOL ETHYLENE GLYCOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
TRS	A	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL TRIS BUFFER C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Free: 0.254 
• R-Value Work: 0.212 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 66.031	α = 90.00
b = 78.075	β = 103.71
c = 77.126	γ = 90.00

Software Package:

Software Name	Purpose
SHARP	phasing
MOSFLM	data reduction
SHELX	phasing
O	model building
TNT	phasing
ARP	model building
TNT	refinement
SnB	phasing
SHELXL-97	refinement
SHELX	model building
REFMAC	refinement
BUSTER	refinement
CCP4	data scaling
BUSTER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-04-19 
• Released Date: 2001-05-30 
• Deposition Author(s): von Delft, F., Lewendon, A., Dhanaraj, V., Blundell, T.L., Abell, C., Smith, A.

Revision History 

• Version 1.0: 2001-05-30
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2014-11-12
  Type: Structure summary
• Version 1.4: 2017-10-04
  Type: Refinement description
• Version 1.5: 2019-07-24
  Type: Data collection, Refinement description