5HIF

Crystal structure of a reconstructed lactonase ancestor, Anc1-MPH, of the bacterial methyl parathion hydrolase, MPH.

• PDB DOI: https://doi.org/10.2210/pdb5HIF/pdb

• Classification: HYDROLASE
• Organism(s): synthetic construct
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2016-01-11 Released: 2017-02-08 
• Deposition Author(s): Baier, F., Carr, P.D., Jackson, C.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.206 
• R-Value Work: 0.174 
• R-Value Observed: 0.176 

Starting Model: experimental

Literature

to be published

Baier, F., Carr, P.D., Jackson, C.J.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 63.53 kDa 
• Atom Count: 5,019 
• Modelled Residue Count: 598 
• Deposited Residue Count: 598 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
reconstructed lactonase ancestor, Anc1-MPH	A, B	299	synthetic construct	Mutation(s): 0  EC: 3.1.1.35

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	E [auth A], H [auth B]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
ZN	C [auth A], D [auth A], F [auth B], G [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
MG	I [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.206 
• R-Value Work: 0.174 
• R-Value Observed: 0.176 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.6	α = 90
b = 88.15	β = 90
c = 119.8	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-02-08 
Deposition Author(s): Baier, F., Carr, P.D., Jackson, C.J.

Revision History  

• Version 1.0: 2017-02-08
  Type: Initial release
  
• Version 1.1: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Refinement description