6HM9

Crystal structure of a BA3943 mutant,a CE4 family pseudoenzyme with restored enzymatic activity.

• PDB DOI:  https://doi.org/10.2210/pdb6HM9/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Bacillus anthracis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2018-09-12 Released: 2019-10-09 
• Deposition Author(s): Molfetas, A., Tomatsidou, A., Kokkinidis, M.
• Funding Organization(s): European Union

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.71 Å
• R-Value Free: 0.195 
• R-Value Work: 0.167 
• R-Value Observed: 0.168 

Literature

The resurrection of a dead enzyme.

Molfetas, A., Tomasidou, A., Kokkinidis, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 32.97 kDa 
• Atom Count: 2,516 
• Modelled Residue Count: 272 
• Deposited Residue Count: 278 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative polysaccharide deacetylase	A	278	Bacillus anthracis	Mutation(s): 3  Gene Names: ylxY, BA_3943, A9486_19545, BASH2_01993, CN272_11110, COL95_11150, GBAA_3943
UniProt
Find proteins for A0A6L7H2K2 (Bacillus anthracis) Explore A0A6L7H2K2  Go to UniProtKB:  A0A6L7H2K2

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
ACT	F [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.71 Å
• R-Value Free: 0.195 
• R-Value Work: 0.167 
• R-Value Observed: 0.168 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.95	α = 90
b = 59.03	β = 90
c = 78.5	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-10-09 
Deposition Author(s): Molfetas, A., Tomatsidou, A., Kokkinidis, M.

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Funding Organization	Location	Grant Number
European Union	Greece	316223

Revision History  

• Version 1.0: 2019-10-09
  Type: Initial release