1OCN

Mutant D416A of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with a cellobio-derived isofagomine at 1.3 angstrom resolution

• PDB DOI: https://doi.org/10.2210/pdb1OCN/pdb

• Classification: HYDROLASE
• Organism(s): Humicola insolens
• Expression System: Aspergillus oryzae
• Mutation(s): No 


• Deposited: 2003-02-09 Released: 2003-05-22 
• Deposition Author(s): Varrot, A., Macdonald, J., Stick, R.V., Pell, G., Gilbert, H.J., Davies, G.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.31 Å
• R-Value Free: 0.162 
• R-Value Work: 0.130 
• R-Value Observed: 0.132 

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: 40.93 kDa 
• Atom Count: 3,407 
• Modelled Residue Count: 360 
• Deposited Residue Count: 362 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CELLOBIOHYDROLASE II	A	362	Humicola insolens	Mutation(s): 0  EC: 3.2.1.91
UniProt
Find proteins for Q9C1S9 (Humicola insolens) Explore Q9C1S9  Go to UniProtKB:  Q9C1S9

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	B [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
BGC	D [auth A], F [auth A]	beta-D-glucopyranose C6 H12 O6 WQZGKKKJIJFFOK-VFUOTHLCSA-N
IFM	C [auth A], E [auth A]	5-HYDROXYMETHYL-3,4-DIHYDROXYPIPERIDINE C6 H13 N O3 QPYJXFZUIJOGNX-HSUXUTPPSA-N
CA	G [auth A], H [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.31 Å
• R-Value Free: 0.162 
• R-Value Work: 0.130 
• R-Value Observed: 0.132 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.357	α = 90
b = 69.842	β = 113.52
c = 51.95	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-05-22 
Deposition Author(s): Varrot, A., Macdonald, J., Stick, R.V., Pell, G., Gilbert, H.J., Davies, G.J.

Revision History  

• Version 1.0: 2003-05-22
  Type: Initial release
  
• Version 1.1: 2015-07-15
  Changes: Derived calculations, Non-polymer description, Other, Structure summary, Version format compliance
• Version 1.2: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Other, Structure summary
• Version 1.3: 2023-12-13
  Changes: Data collection, Database references, Refinement description, Structure summary