1IHP

STRUCTURE OF PHOSPHOMONOESTERASE

• PDB DOI: https://doi.org/10.2210/pdb1IHP/pdb

• Classification: PHOSPHOMONOESTERASE
• Organism(s): Aspergillus ficuum
• Mutation(s): No 


• Deposited: 1997-02-04 Released: 1998-03-18 
• Deposition Author(s): Kostrewa, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.155 
• R-Value Observed: 0.155 

Literature

Crystal structure of phytase from Aspergillus ficuum at 2.5 A resolution.

Kostrewa, D., Gruninger-Leitch, F., D'Arcy, A., Broger, C., Mitchell, D., van Loon, A.P.

(1997) Nat Struct Biol 4: 185-190

• PubMed: 9164457 
• DOI: https://doi.org/10.1038/nsb0397-185
• Primary Citation of Related Structures:  
  1IHP


• PubMed Abstract: 
  

  Phytase is a high molecular weight acid phosphatase. The structure has an alpha/beta-domain similar to that of rat acid phosphatase and an alpha-domain with a new fold.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 48.34 kDa 
• Atom Count: 3,488 
• Modelled Residue Count: 434 
• Deposited Residue Count: 438 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PHYTASE	A	438	Aspergillus ficuum	Mutation(s): 0  EC: 3.1.3.8 (PDB Primary Data), 3.1.3 (UniProt)
UniProt
Find proteins for P34752 (Aspergillus niger) Explore P34752  Go to UniProtKB:  P34752

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.155 
• R-Value Observed: 0.155 
• Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 92.25	α = 90
b = 92.25	β = 90
c = 100.89	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
XDS	data reduction
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-03-18 
Deposition Author(s): Kostrewa, D.

Revision History  

• Version 1.0: 1998-03-18
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2018-04-04
  Changes: Data collection
• Version 1.4: 2024-10-09
  Changes: Data collection, Database references, Derived calculations, Structure summary