6REG

Crystal structure of Pizza6-S with Zn2+

PDB DOI: https://doi.org/10.2210/pdb6REG/pdb

Classification: DE NOVO PROTEIN
Organism(s): synthetic construct
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2019-04-12 Released: 2019-07-31
Deposition Author(s): Noguchi, H., Clarke, D.E., Gryspeerdt, J.L., Feyter, S.D., Voet, A.R.D.
Funding Organization(s): Research Foundation - Flanders

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.30 Å
R-Value Free: 0.176
R-Value Work: 0.146
R-Value Observed: 0.148

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

Artificial beta-propeller protein-based hydrolases.

Clarke, D.E., Noguchi, H., Gryspeerdt, J.A.G., De Feyter, S., Voet, A.R.D.

(2019) Chem Commun (Camb) 55: 8880-8883

PubMed: 31321399 Search on PubMed
DOI: https://doi.org/10.1039/c9cc04388h
Primary Citation of Related Structures:
6REG, 6REH, 6REJ, 6REK, 6REN

PubMed Abstract:
We developed an artificial hydrolase based on the symmetrical Pizza6 β-propeller protein for the metal-free hydrolysis of 4-nitrophenyl acetate and butyrate. Through site-specific mutagenesis and crystallisation studies, the catalytic mechanism was investigated and found to be dependent on a threonine-histidine dyad. The mutant with additional histidine residues generated the highest kcat values, forming a His-His-Thr triad and matched previously reported metalloenzymes. The highly symmetrical β-propeller artificial enzymes and their protein-metal complexes have potential to be utilised in bioinorganic and supramolecular chemistry, as well as being developed further into 2D/3D catalytic materials.

Organizational Affiliation

Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium.

Macromolecule Content

Total Structure Weight: 52.32 kDa
Atom Count: 4,432
Modelled Residue Count: 502
Deposited Residue Count: 512
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Pizza6-S	A, B	256	synthetic construct	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain O [auth A] MOL2 format, chain O [auth A] mmCIF format, chain O [auth A]	O [auth A]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain O [auth A] Interactions & Density Focus chain O [auth A]
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth A] SDF format, chain N [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A] MOL2 format, chain N [auth A] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain I [auth A] mmCIF format, chain J [auth A] mmCIF format, chain K [auth A] mmCIF format, chain L [auth A] mmCIF format, chain M [auth A] mmCIF format, chain N [auth A]	C [auth A] D [auth A] E [auth A] F [auth A] G [auth A] C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.30 Å
R-Value Free: 0.176
R-Value Work: 0.146
R-Value Observed: 0.148
Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.135	α = 90
b = 72.135	β = 90
c = 166.957	γ = 90

Software Package:

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

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2019-07-31

Deposition Author(s):

Funding Organization	Location	Grant Number
Research Foundation - Flanders	Belgium	G0E4717N, G0F9316N, G051917N

Revision History (Full details and data files)

Version 1.0: 2019-07-31
Type: Initial release
Version 1.1: 2024-01-24
Changes: Data collection, Database references, Derived calculations, Refinement description

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Help and Resources

6REG

Crystal structure of Pizza6-S with Zn2+

Artificial beta-propeller protein-based hydrolases.

Entity ID: 1

Entity Groups

Sequence Annotations

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Experimental Data

Structure Validation

Deposition Data

Revision History (Full details and data files)