33CN | pdb_000033cn

Streptomyces sp. TLI_171 GH5_7 Mannanase, E337Q, mannan bound

• PDB DOI: https://doi.org/10.2210/pdb33CN/pdb

• Classification: HYDROLASE
• Organism(s): Streptomyces sp. TLI_171
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2026-08-10 Released: 2026-11-04 
• Deposition Author(s): Bloch, Y.
• Funding Organization(s): H2020 Marie Curie Actions of the European Commission

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.194 (Depositor), 0.193 (DCC) 
• R-Value Work: 
  0.172 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.173 (Depositor) 

Starting Model: experimental

Literature

Defining Glycosyl Hydrolase Family 5_7 mannan interaction through the identification and structural characterization of two Actinobacteria mannanases.

Bloch, Y.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 182.91 kDa 
• Atom Count: 13,847 
• Modeled Residue Count: 1,524 
• Deposited Residue Count: 1,592 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GH5_7 Mannanase	A, C	398	Streptomyces sp. TLI_171	Mutation(s): 0  EC: 3.2.1.78

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
GH5_7 Mannanase	B, D	398	Streptomyces sp. TLI_171	Mutation(s): 0  EC: 3.2.1.78

Oligosaccharides

Help  

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose	E, F	6		N/A

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose	G	5		N/A

Entity ID: 5
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose-(1-4)-beta-D-mannopyranose	H	7		N/A

Small Molecules

Modified Residues  1 Unique
ID	Chains	Modified Residue	Modification Type	Formula	2D Diagram
CSS	A, C	CYS	Sulfhydration	C3 H7 N O2 S2

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.194 (Depositor), 0.193 (DCC) 
• R-Value Work:  0.172 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.173 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 95.9	α = 90
b = 106.4	β = 90
c = 158.02	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
STARANISO	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-04 
Deposition Author(s): Bloch, Y.

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Funding Organization	Location	Grant Number
H2020 Marie Curie Actions of the European Commission	European Union	945405

Revision History  

• Version 1.0: 2026-11-04
  Type: Initial release