1V0N

Xylanase Xyn10a from Streptomyces lividans in complex with xylobio-isofagomine at pH 7.5

• PDB DOI: https://doi.org/10.2210/pdb1V0N/pdb

• Classification: HYDROLASE
• Organism(s): Streptomyces lividans
• Expression System: Streptomyces lividans
• Mutation(s): No 


• Deposited: 2004-03-31 Released: 2004-08-16 
• Deposition Author(s): Gloster, T.M., Williams, S.J., Roberts, S., Tarling, C.A., Wicki, J., Withers, S.G., Davies, G.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.124 
• R-Value Work: 0.103 
• R-Value Observed: 0.104 

Starting Model: experimental

Literature

Atomic Resolution Analyses of the Binding of Xylobiose-Derived Deoxynojirimycin and Isofagomine to Xylanase Xyn10A

Gloster, T.M., Williams, S.J., Roberts, S., Tarling, C.A., Wicki, J., Withers, S.G., Davies, G.J.

(2004) Chem Commun (Camb) 16: 1794

• PubMed: 15306887 
• DOI: https://doi.org/10.1039/b405152a
• Primary Citation of Related Structures:  
  1V0K, 1V0L, 1V0M, 1V0N


• PubMed Abstract: 
  

  The atomic resolution structures of xylobiose-derived isofagomine and xylobiose-derived deoxynojirimycin in complex with the xylanase Xyn10A from Streptomyces lividans reveal undistorted (4)C(1) chair conformed sugars and, in the case of the deoxynojirimycin analogue, suggest unusual pK(a) changes of the enzyme's catalytic machinery upon binding.

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Organizational Affiliation: 

Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, UK.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 34.59 kDa 
• Atom Count: 3,061 
• Modelled Residue Count: 302 
• Deposited Residue Count: 313 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENDO-1,4-BETA-XYLANASE A	A	313	Streptomyces lividans	Mutation(s): 0  EC: 3.2.1.8
UniProt
Find proteins for P26514 (Streptomyces lividans) Explore P26514  Go to UniProtKB:  P26514

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
XYP	E [auth A]	beta-D-xylopyranose C5 H10 O5 SRBFZHDQGSBBOR-KKQCNMDGSA-N
XIF	D [auth A]	PIPERIDINE-3,4-DIOL C5 H11 N O2 IZXWMVPZODQBRB-RFZPGFLSSA-N
IMD	F [auth A]	IMIDAZOLE C3 H5 N2 RAXXELZNTBOGNW-UHFFFAOYSA-O
EDO	B [auth A], C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.124 
• R-Value Work: 0.103 
• R-Value Observed: 0.104 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.328	α = 90
b = 46.132	β = 90
c = 86.382	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-08-16 
Deposition Author(s): Gloster, T.M., Williams, S.J., Roberts, S., Tarling, C.A., Wicki, J., Withers, S.G., Davies, G.J.

Revision History  

• Version 1.0: 2004-08-16
  Type: Initial release
  
• Version 1.1: 2011-05-07
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary