8FMC

Crystal Structure of Kemp Eliminase 1A53-core in unbound state

• PDB DOI: https://doi.org/10.2210/pdb8FMC/pdb

• Classification: LYASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-12-23 Released: 2024-01-10 
• Deposition Author(s): Zarifi, N., Asthana, P., Fraser, J.S., Chica, R.A.
• Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada), Canada Foundation for Innovation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free: 0.231 
• R-Value Work: 0.191 
• R-Value Observed: 0.193 

Starting Model: experimental

Literature

Crystal Structure of Kemp Eliminase 1A53-core in unbound state

Zarifi, N., Asthana, P., Fraser, J.S., Chica, R.A.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 30.22 kDa 
• Atom Count: 2,086 
• Modelled Residue Count: 247 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kemp Eliminase 1A53-core	A	260	Escherichia coli	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES (Subject of Investigation/LOI)	C [auth A]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
PO4 (Subject of Investigation/LOI)	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free: 0.231 
• R-Value Work: 0.191 
• R-Value Observed: 0.193 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.687	α = 90
b = 60.687	β = 90
c = 121.762	γ = 120

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-01-10 
Deposition Author(s): Zarifi, N., Asthana, P., Fraser, J.S., Chica, R.A.

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Funding Organization	Location	Grant Number
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	RGPIN-2016-04831
Canada Foundation for Innovation	Canada	26503

Revision History  

• Version 1.0: 2024-01-10
  Type: Initial release