Table 1. Optimized crystallization conditions for native and SeMet-derivative UgdG proteins.

Crystal	Precipitant solution	Drop volume: protein + precipitant (ml)	Time (h)	Temperature (K)	Cryoprotectant	Other notes
Native	0.1 M Na citrate pH 5.6, 20%(w/v) PEG 4K, 10%(v/v) 2-propanol	1 + 1	24	293	Mother liquor with 25%(v/v) glycerol	Microbatch, additive 0.05 mM NaF
SeMet derivative	0.1 M MES pH 6.5, 40%(w/v) PEG 200	1 + 1	24–48	293	Mother liquor with 25%(v/v) PEG 400	Vapour diffusion