Published on Jan. 1, 2008 in Acta Crystallogr Sect F Struct Biol Cryst Commun volume 64.

PubMed ID: 18259064


Abstract:

QueD (previously named ykvK) is one of several enzymes involved in the biosynthesis of the hypermodified nucleoside queuosine. Queuosine is incorporated into tRNA at position 34 of four tRNAs: tRNA(His), tRNA(Asp), tRNA(Asn) and tRNA(Tyr). The crystallization and preliminary X-ray crystallographic studies of queD are described here. The recombinant protein from Bacillus subtilis was overproduced in Escherichia coli and crystallized using the hanging-drop vapor-diffusion method from 25% PEG 600, 100 mM NaCl and sodium citrate buffer pH 5.5 at 291 K. The crystals diffract to 3.6 A resolution and belong to the cubic space group F4(1)32, with unit-cell parameter a = 240.88 A.


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