Initiating a structural study of 2-keto-3-deoxy-6-phosphogluconate aldolase from Escherichia coli.

Journal Article (Journal Article)

2-Keto-3-deoxy-6-phosphogluconate aldolase (KDPG aldolase, E.C. 4.1. 2.14) is a member of the pyruvate/phosphoenolpyruvate aldolase family. It is also a synthetically useful enzyme, capable of catalyzing the stereoselective aldol addition of pyruvate to a range of unnatural electrophilic substrates. The recombinant protein was purified by a two-step HPLC protocol involving anion-exchange and hydrophobic chromatography. Dynamic light-scattering experiments indicated the protein to be monodisperse. Crystals were obtained using the sitting-drop vapour-diffusion method, with PEG 6K as precipitant. Diffraction data were collected on a frozen crystal to a resolution of 2.26 A on station PX9.6 at the Daresbury synchrotron. The crystal belongs to space group P2(1)2(1)2(1), with unit-cell parameters a = 53.2, b = 77.9, c = 146.8 A.

Full Text

Duke Authors

Cited Authors

  • Buchanan, LV; Mehta, N; Pocivavsek, L; Niranjanakumari, S; Toone, EJ; Naismith, JH

Published Date

  • November 1999

Published In

Volume / Issue

  • 55 / Pt 11

Start / End Page

  • 1946 - 1948

PubMed ID

  • 10531504

Electronic International Standard Serial Number (EISSN)

  • 1399-0047

International Standard Serial Number (ISSN)

  • 0907-4449

Digital Object Identifier (DOI)

  • 10.1107/s0907444999011166


  • eng