Overexpression, purification, crystallization and data collection of Sulfolobus solfataricus Sso6206, a novel highly conserved protein

Publisher: John Wiley & Sons Inc

E-ISSN: 1744-3091|62|3|228-230

ISSN: 1744-3091

Source: Acta Crystallographica Section F, Vol.62, Iss.3, 2006-03, pp. : 228-230

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Abstract

Sso6206, a 10.5 kDa protein from Sulfolobus solfataricus, has been overexpressed, purified and crystallized. The protein crystallizes in space group P61/522, with unit‐cell parameters a = b = 157.8, c = 307.3 Å. The crystals are hexagonal bipyramids and a data set has been collected to 2.4 Å resolution. Molecular replacement cannot be attempted as no convincing model can be identified. Crystals of selenomethionine‐variant protein have not yet been obtained. Interestingly, crystal packing, gel filtration and mass spectrometry all suggest the native protein forms a multi‐subunit oligomer consisting of >9 subunits.