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Crystallization and preliminary X‐ray diffraction analysis of the full‐length Mg 2+ transporter MgtE

Crystallization and preliminary X‐ray diffraction analysis of the full‐length Mg 2+ transporter MgtE The MgtE family of Mg2+ transporters are ubiquitously conserved in all three domains. The genes encoding full‐length MgtE from seven different species were cloned. Three of the seven MgtE transporters were overexpressed and purified for use in crystallization trials. Only Thermus thermophilus MgtE was successfully crystallized using the sitting‐drop vapour‐diffusion method. Selenomethionine‐substituted (SeMet) crystals were obtained by cross‐microseeding using the native microcrystals. The SeMet crystals diffracted X‐rays to 3.5 Å resolution using synchrotron radiation and belong to space group C2221, with unit‐cell parameters a = 118.3, b = 134.9, c = 366.2 Å. Structure determination is in progress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section F Wiley

Crystallization and preliminary X‐ray diffraction analysis of the full‐length Mg 2+ transporter MgtE

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References (16)

Publisher
Wiley
Copyright
Copyright © 2007 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1744-3091
eISSN
1744-3091
DOI
10.1107/S1744309107032332
pmid
17671367
Publisher site
See Article on Publisher Site

Abstract

The MgtE family of Mg2+ transporters are ubiquitously conserved in all three domains. The genes encoding full‐length MgtE from seven different species were cloned. Three of the seven MgtE transporters were overexpressed and purified for use in crystallization trials. Only Thermus thermophilus MgtE was successfully crystallized using the sitting‐drop vapour‐diffusion method. Selenomethionine‐substituted (SeMet) crystals were obtained by cross‐microseeding using the native microcrystals. The SeMet crystals diffracted X‐rays to 3.5 Å resolution using synchrotron radiation and belong to space group C2221, with unit‐cell parameters a = 118.3, b = 134.9, c = 366.2 Å. Structure determination is in progress.

Journal

Acta Crystallographica Section FWiley

Published: Aug 1, 2007

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