1OC7

D405N mutant of the CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS in complex with methyl-tetrathio-alpha-d-cellopentoside at 1.1 angstrom resolution

• PDB DOI: https://doi.org/10.2210/pdb1OC7/pdb

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


• Deposited: 2003-02-06 Released: 2003-07-10 
• Deposition Author(s): Varrot, A., Frandsen, T.P., Von Ossowski, I., Boyer, V., Driguez, H., Schulein, M., Davies, G.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.11 Å
• R-Value Free: 0.124 
• R-Value Work: 0.105 
• R-Value Observed: 0.106 

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: 41.72 kDa 
• Atom Count: 3,619 
• Modelled Residue Count: 364 
• Deposited Residue Count: 364 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CELLOBIOHYDROLASE II	A	364	Humicola insolens	Mutation(s): 0  EC: 3.2.1.91
UniProt
Find proteins for Q9C1S9 (Humicola insolens) Explore Q9C1S9  Go to UniProtKB:  Q9C1S9

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-glucopyranose-(1-4)-4-thio-beta-D-glucopyranose-(1-4)-4-thio-beta-D-glucopyranose-(1-4)-4-thio-beta-D-glucopyranose-(1-4)-methyl 4-thio-alpha-D-glucopyranoside	B	5	N/A	N/A
Glycosylation Resources
GlyTouCan:  G70053OM GlyCosmos:  G70053OM

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	C [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
GOL	H [auth A], I [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
DMF	F [auth A], G [auth A]	DIMETHYLFORMAMIDE C3 H7 N O ZMXDDKWLCZADIW-UHFFFAOYSA-N
ACT	E [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
MG	D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.11 Å
• R-Value Free: 0.124 
• R-Value Work: 0.105 
• R-Value Observed: 0.106 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.504	α = 90
b = 60.148	β = 90
c = 97.207	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-07-10 
Deposition Author(s): Varrot, A., Frandsen, T.P., Von Ossowski, I., Boyer, V., Driguez, H., Schulein, M., Davies, G.J.

Revision History  

• Version 1.0: 2003-07-10
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations
• 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, Refinement description, Structure summary