7DW8

Structure of a novel beta-mannanase BaMan113A with mannobiose, N236Y mutation.

• PDB DOI: https://doi.org/10.2210/pdb7DW8/pdb

• Classification: HYDROLASE
• Organism(s): Bacillus sp. N16-5
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2021-01-15 Released: 2021-06-02 
• Deposition Author(s): Liu, W.T., Liu, W.D., Zheng, Y.Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.197 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 81.96 kDa 
• Atom Count: 6,006 
• Modelled Residue Count: 637 
• Deposited Residue Count: 696 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Endo-beta-1,4-mannanase	A, B	348	Bacillus sp. N16-5	Mutation(s): 2
UniProt
Find proteins for A0A140EH91 (Bacillus sp. N16-5) Explore A0A140EH91  Go to UniProtKB:  A0A140EH91

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-beta-D-mannopyranose	C [auth G], D [auth H]	2		N/A
Glycosylation Resources
GlyTouCan:  G78317QO GlyCosmos:  G78317QO GlyGen:  G78317QO

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900115	C [auth G], D [auth H]	4beta-beta-mannobiose	Oligosaccharide / Metabolism

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.197 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 
• Space Group: P 2 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.194	α = 90
b = 109.375	β = 90
c = 150.504	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-06-02 
Deposition Author(s): Liu, W.T., Liu, W.D., Zheng, Y.Y.

Revision History  

• Version 1.0: 2021-06-02
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Database references, Refinement description