1SKA

Crystallographic snapshots of Aspergillus fumigatus phytase revealing its enzymatic dynamics

• PDB DOI: https://doi.org/10.2210/pdb1SKA/pdb

• Classification: HYDROLASE
• Organism(s): Aspergillus fumigatus
• Expression System: Komagataella pastoris
• Mutation(s): No 


• Deposited: 2004-03-04 Released: 2004-09-28 
• Deposition Author(s): Liu, Q., Huang, Q., Lei, X.G., Hao, Q.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.198 
• R-Value Work: 0.156 
• R-Value Observed: 0.158 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 49.21 kDa 
• Atom Count: 3,923 
• Modelled Residue Count: 435 
• Deposited Residue Count: 439 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3-phytase A	A	439	Aspergillus fumigatus	Mutation(s): 0  Gene Names: PHYA EC: 3.1.3.8
UniProt
Find proteins for O00092 (Aspergillus fumigatus (strain ATCC MYA-4609 / CBS 101355 / FGSC A1100 / Af293)) Explore O00092  Go to UniProtKB:  O00092

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	B [auth A], C [auth A], D [auth A], E [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.198 
• R-Value Work: 0.156 
• R-Value Observed: 0.158 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.938	α = 90
b = 95.225	β = 90
c = 98.129	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-09-28 
Deposition Author(s): Liu, Q., Huang, Q., Lei, X.G., Hao, Q.

Revision History  

• Version 1.0: 2004-09-28
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary