8WBV

The crystal structure of linear mannose with mutant H247F of the cellobiose 2-epimerase from Caldicellulosiruptor saccharolyticus

• PDB DOI: https://doi.org/10.2210/pdb8WBV/pdb

• Classification: ISOMERASE
• Organism(s): Caldicellulosiruptor saccharolyticus DSM 8903
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2023-09-10 Released: 2023-10-25 
• Deposition Author(s): Yang, R.J., Feng, Y.H.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.233 
• R-Value Work: 0.175 
• R-Value Observed: 0.178 

Literature

The crystal structure of linear mannose with mutant H247F of the cellobiose 2-epimerase from Caldicellulosiruptor saccharolyticus

Yang, R.J., Feng, Y.H.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: native gel electrophoresis

Macromolecule Content

• Total Structure Weight: 47.05 kDa 
• Atom Count: 3,472 
• Modelled Residue Count: 391 
• Deposited Residue Count: 391 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cellobiose 2-epimerase	A	391	Caldicellulosiruptor saccharolyticus DSM 8903	Mutation(s): 1  Gene Names: Csac_0294
UniProt
Find proteins for A4XGA6 (Caldicellulosiruptor saccharolyticus (strain ATCC 43494 / DSM 8903 / Tp8T 6331)) Explore A4XGA6  Go to UniProtKB:  A4XGA6

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BMA	C [auth A]	beta-D-mannopyranose C6 H12 O6 WQZGKKKJIJFFOK-RWOPYEJCSA-N
DNO (Subject of Investigation/LOI)	B [auth A]	D-mannose C6 H12 O6 GZCGUPFRVQAUEE-KVTDHHQDSA-N
EDO	D [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.233 
• R-Value Work: 0.175 
• R-Value Observed: 0.178 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.79	α = 90
b = 75.85	β = 90
c = 97.01	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-10-25 
Deposition Author(s): Yang, R.J., Feng, Y.H.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32072150

Revision History  

• Version 1.0: 2023-10-25
  Type: Initial release