4C4C

Michaelis complex of Hypocrea jecorina CEL7A E217Q mutant with cellononaose spanning the active site

• PDB DOI: https://doi.org/10.2210/pdb4C4C/pdb

• Classification: HYDROLASE
• Organism(s): Trichoderma reesei
• Expression System: Trichoderma reesei
• Mutation(s): Yes 


• Deposited: 2013-09-05 Released: 2014-01-08 
• Deposition Author(s): Haddad-Momeni, M., Sandgren, M., Stahlberg, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.196 
• R-Value Work: 0.170 
• R-Value Observed: 0.171 

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 48.48 kDa 
• Atom Count: 4,161 
• Modelled Residue Count: 434 
• Deposited Residue Count: 434 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CELLULOSE 1,4-BETA-CELLOBIOSIDASE	A	434	Trichoderma reesei	Mutation(s): 1  EC: 3.2.1.91
UniProt
Find proteins for P62694 (Hypocrea jecorina) Explore P62694  Go to UniProtKB:  P62694

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	B	9		N/A
Glycosylation Resources
GlyTouCan:  G69850FN GlyCosmos:  G69850FN

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	F [auth A], G [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
PEG	H [auth A], I [auth A], J [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
CO	C [auth A], D [auth A], E [auth A]	COBALT (II) ION Co XLJKHNWPARRRJB-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PCA	A	L-PEPTIDE LINKING	C5 H7 N O3		GLN

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.196 
• R-Value Work: 0.170 
• R-Value Observed: 0.171 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.82	α = 90
b = 83.03	β = 90
c = 110.5	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-01-08 
Deposition Author(s): Haddad-Momeni, M., Sandgren, M., Stahlberg, J.

Revision History  

• Version 1.0: 2014-01-08
  Type: Initial release
  
• Version 1.1: 2014-01-22
  Changes: Database references
• Version 1.2: 2018-01-17
  Changes: Data collection
• Version 1.3: 2019-05-08
  Changes: Data collection, Derived calculations, Experimental preparation
• Version 2.0: 2020-03-11
  Changes: Data collection, Other, Polymer sequence
• Version 3.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 3.1: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary