1FWR

CRYSTAL STRUCTURE OF KDPG ALDOLASE DOUBLE MUTANT K133Q/T161K

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.238 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

Directed evolution of a new catalytic site in 2-keto-3-deoxy-6-phosphogluconate aldolase from Escherichia coli.

Wymer, N., Buchanan, L.V., Henderson, D., Mehta, N., Botting, C.H., Pocivavsek, L., Fierke, C.A., Toone, E.J., Naismith, J.H.

(2001) Structure 9: 1-10

  • DOI: 10.1016/s0969-2126(00)00555-4
  • Primary Citation of Related Structures:  
    1FQ0, 1FWR

  • PubMed Abstract: 

    • Aldolases are carbon bond-forming enzymes that have long been identified as useful tools for the organic chemist. However, their utility is limited in part by their narrow substrate utilization. Site-directed mutagenesis of various enzymes to alter their specificity has been performed for many years, typically without the desired effect ...

    Aldolases are carbon bond-forming enzymes that have long been identified as useful tools for the organic chemist. However, their utility is limited in part by their narrow substrate utilization. Site-directed mutagenesis of various enzymes to alter their specificity has been performed for many years, typically without the desired effect. More recently directed evolution has been employed to engineer new activities onto existing scaffoldings. This approach allows random mutation of the gene and then selects for fitness to purpose those proteins with the desired activity. To date such approaches have furnished novel activities through multiple mutations of residues involved in recognition; in no instance has a key catalytic residue been altered while activity is retained.

    Organizational Affiliation: 

    Department of Chemistry, LSRC, Duke University, Durham, NC 27708, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
KDPG ALDOLASEA, B, C213Escherichia coliMutation(s): 2 
EC: 4.1.2.14 (PDB Primary Data), 4.1.3.16 (UniProt)
UniProt
Find proteins for P0A955 (Escherichia coli (strain K12))
Explore P0A955 
Go to UniProtKB:  P0A955
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A955
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT
Download Ideal Coordinates CCD File 
D [auth A],
E [auth B],
F [auth C]		CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.238 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.87α = 90
b = 84.5β = 90
c = 135.013γ = 90
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-10-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-10-03
    Changes: Advisory, Data collection
  • Version 1.4: 2021-11-03
    Changes: Advisory, Database references, Derived calculations