Reference: Choi J, et al. (2005) Crystallization and preliminary X-ray analysis of a truncated mutant of yeast nuclear thiol peroxidase, a novel atypical 2-Cys peroxiredoxin. Acta Crystallogr Sect F Struct Biol Cryst Commun 61(Pt 7):659-62

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Abstract


Saccharomyces cerevisiae nTPx is a thioredoxin-dependent thiol peroxidase that is localized in the nucleus. nTPx belongs to the C-type atypical 2-Cys peroxiredoxin family members, which are frequently called BCPs or PrxQs. A double mutant (C107S/C112S) of nTPx overexpressed in Escherichia coli was spontaneously degraded upon freezing and thawing and its truncated form (residues 57-215; MW = 17837 Da) was crystallized with PEG 3350 and mercury(II) acetate as precipitants using the hanging-drop vapour-diffusion method. Diffraction data were collected to 1.8 A resolution using X-ray synchrotron radiation. The crystals belong to the trigonal space group P3(2), with unit-cell parameters a = b = 37.54, c = 83.26 A. The asymmetric unit contains one molecule of truncated mutant nTPx, with a corresponding VM of 1.91 A3 Da(-1) and a solvent content of 35.5%.

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Choi J, Choi S, Choi J, Cha MK, Kim IH, Shin W
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