| X-RAY DIFFRACTION |
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277 |
Crystallography was performed using the sitting drop method using 20 mg/ml CYP144A1. Drops were prepared by the addition of 0.2 microl of CYP144A1-FLV and -TRV proteins to 0.2 microl of mother liquor and by incubating at 4 oC. Following initial crystallogenesis using commercial screens, crystallization conditions were further refined to 0.8 or 1.0 M (NH4)2SO4 with 0.1 M HEPES, pH 7.55, and 25% PEG 3350. Single crystals were flash cooled after addition of 10% PEG 200 as cryoprotectant |