5ZOL image
Deposition Date 2018-04-13
Release Date 2019-06-12
Last Version Date 2024-10-23
Entry Detail
PDB ID:
5ZOL
Keywords:
LYASE
Title:
Crystal structure of a three sites mutantion of FSAA complexed with HA and product
Biological Source:
Source Organism:
Escherichia coli (strain K12) (Taxon ID: 83333)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.17 Å
R-Value Free:
0.23
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 32 2 1
5ZOL validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Fructose-6-phosphate aldolase 1
Gene (Uniprot):fsaA
Mutations:T31I/T59Q/Q195I
Chain IDs:A, B, C, D, E, F, G, H, I, J
Chain Length:255
Number of Molecules:10
Biological Source:Escherichia coli (strain K12)
UniProt ID:P78055 Pfam ID:PF00923
Ligand Molecules
4Y8
CL
LW1
LW2
SO4
Primary Citation
The engineering of decameric d-fructose-6-phosphate aldolase A by combinatorial modulation of inter- and intra-subunit interactions.
Chem.Commun.(Camb.) 56 7561 7564 (2020)
PMID: 32519699 DOI: 10.1039/d0cc02437f

Abstact

The combinatorial modulation of inter- and intra-subunit interactions of decameric d-fructose-6-phosphate aldolase A (FSAA) generated a triple-site variant I31T/Q59T/I195Q FSAA with 27- to 278-fold improvement in activity towards target heteroaromatic aldehydes. X-ray crystallographic data and molecular dynamics simulations ascribed the enhanced activity to the pronounced flexibility of the interface region between subunits, the expanded substrate entrance and binding pocket, and enhanced proton transfer, unambiguously demonstrating the efficiency of this strategy for engineering multimeric enzymes.

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Primary Citation of related structures
5ZOL