4OXF | pdb_00004oxf

Structure of ECP in complex with citrate ions at 1.50 Angstroms

• PDB DOI: https://doi.org/10.2210/pdb4OXF/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2014-02-05 Released: 2015-03-04 
• Deposition Author(s): Blanco, J.A., Boix, E., Moussaoui, M., Salazar, V.A.
• Funding Organization(s): Ministerio de Economia y Competitividad

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.231 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.197 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.199 (Depositor) 

Literature

Structure of ECP in complex with citrate ions at 1.50 Angstroms

Blanco, J.A., Boix, E., Moussaoui, M., Salazar, V.A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 32.53 kDa 
• Atom Count: 2,798 
• Modelled Residue Count: 267 
• Deposited Residue Count: 268 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Eosinophil cationic protein	A, B	134	Homo sapiens	Mutation(s): 1  Gene Names: ECP, RNASE3, RNS3 EC: 3.1.27
UniProt & NIH Common Fund Data Resources
Find proteins for P12724 (Homo sapiens) Explore P12724  Go to UniProtKB:  P12724
PHAROS:  P12724 GTEx:  ENSG00000169397

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CIT	C [auth A], D [auth A], E [auth A], G [auth B], H [auth B]	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N
FE	F [auth A], I [auth B]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.231 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.197 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.199 (Depositor) 

Space Group: P 4₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.535	α = 90
b = 62.535	β = 90
c = 175.05	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2015-03-04 
Deposition Author(s): Blanco, J.A., Boix, E., Moussaoui, M., Salazar, V.A.

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Funding Organization	Location	Grant Number
Ministerio de Economia y Competitividad	Spain	BFU2012-38965

Revision History  

• Version 1.0: 2015-03-04
  Type: Initial release
  
• Version 1.1: 2023-12-27
  Changes: Advisory, Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy, Structure summary
• Version 1.2: 2024-10-23
  Changes: Structure summary