1XNB

HIGH-RESOLUTION STRUCTURES OF XYLANASES FROM B. CIRCULANS AND T. HARZIANUM IDENTIFY A NEW FOLDING PATTERN AND IMPLICATIONS FOR THE ATOMIC BASIS OF THE CATALYSIS

• PDB DOI: https://doi.org/10.2210/pdb1XNB/pdb

• Classification: GLYCOSIDASE
• Organism(s): Niallia circulans
• Mutation(s): No 


• Deposited: 1994-06-01 Released: 1994-12-20 
• Deposition Author(s): Campbell, R.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.49 Å
• R-Value Work: 0.165 
• R-Value Observed: 0.165 

Literature

High-Resolution Structures of Xylanases from B. Circulans and T. Harzianum Identify a New Folding Pattern and Implications for the Atomic Basis of the Catalysis

Campbell, R.L., Rose, D.R., Wakarchuk, W.W., To, R.J., Sung, W., Yaguchi, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 20.51 kDa 
• Atom Count: 1,607 
• Modelled Residue Count: 185 
• Deposited Residue Count: 185 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
XYLANASE	A	185	Niallia circulans	Mutation(s): 0  EC: 3.2.1.8
UniProt
Find proteins for P09850 (Niallia circulans) Explore P09850  Go to UniProtKB:  P09850

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: 1.49 Å
• R-Value Work: 0.165 
• R-Value Observed: 0.165 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44	α = 90
b = 52.78	β = 90
c = 78.39	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1994-12-20 
Deposition Author(s): Campbell, R.L.

Revision History  

• Version 1.0: 1994-12-20
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2024-02-14
  Changes: Data collection, Database references, Derived calculations