Medium temperature, 310 K, provides single crystals of orotate phosphoribosyltransferase from Thermus thermophilus

Hiroshi Hamana, Hideaki Moriyama, Takao Shinozawa, Nobuo Tanaka

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Crystallization of orotate phosphoribosyltransferase from a thermophilic organism, Thermus thermophilus, was achieved using the hanging-drop vapour-diffusion method coupled with a macroseeding starter. Small needle-like microcrystals were grown in a fresh protein solution in the presence of 2-methyl-2,4-pentanediol at 298 K or below. Although these normal temperature conditions caused stacking crystallization, an increase of temperature to 310K permitted crystal growth. This was because of increased enzyme solubility at the higher temperature. The crystal was found to belong to the monoclinic space group P21 with unit-cell parameters a = 44.4, b = 59.6, c = 67.8 Å and β = 98.3°.

Original languageEnglish (US)
Pages (from-to)345-346
Number of pages2
JournalActa Crystallographica Section D: Biological Crystallography
Issue number1
Publication statusPublished - Jan 1 1999


ASJC Scopus subject areas

  • Structural Biology

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