6OS7

E. coli fumarase mutant - R126A

• PDB DOI: https://doi.org/10.2210/pdb6OS7/pdb

• Classification: LYASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli K-12
• Mutation(s): Yes 


• Deposited: 2019-05-01 Released: 2020-05-06 
• Deposition Author(s): Stuttgen, G.M., May, J.F., Bhattcharyya, B., Weaver, T.M.
• Funding Organization(s): Other government

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.36 Å
• R-Value Free: 0.169 
• R-Value Work: 0.145 
• R-Value Observed: 0.146 

Literature

Fumarase C variant that eliminates the B-site

Stuttgen, G.M., May, J.F., Bhattcharyya, B., Weaver, T.M.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly Evidence: gel filtration, native gel electrophoresis

Macromolecule Content

• Total Structure Weight: 102.87 kDa 
• Atom Count: 7,725 
• Modelled Residue Count: 905 
• Deposited Residue Count: 944 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fumarate hydratase class II	A, B	472	Escherichia coli K-12	Mutation(s): 1  Gene Names: fumC, b1611, JW1603 EC: 4.2.1.2
UniProt
Find proteins for P05042 (Escherichia coli (strain K12)) Explore P05042  Go to UniProtKB:  P05042

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FLC (Subject of Investigation/LOI)	C [auth A], F [auth B]	CITRATE ANION C6 H5 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-K
GOL (Subject of Investigation/LOI)	D [auth A], E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.36 Å
• R-Value Free: 0.169 
• R-Value Work: 0.145 
• R-Value Observed: 0.146 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.521	α = 90
b = 217.598	β = 90
c = 86.266	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data collection
XDS	data reduction
autoPROC	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-05-06 
Deposition Author(s): Stuttgen, G.M., May, J.F., Bhattcharyya, B., Weaver, T.M.

---

Funding Organization	Location	Grant Number
Other government	United States	Weaver FRG

Revision History  

• Version 1.0: 2020-05-06
  Type: Initial release
  
• Version 2.0: 2023-08-16
  Type: Coordinate replacement
  Reason: Model orientation/position
  Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Refinement description, Source and taxonomy, Structure summary
• Version 2.1: 2023-10-11
  Changes: Refinement description