赛默飞世尔Thermo Fisher CHLORIDE ST

A quick RNA mini-prep for Neurospora mycelial cultures

temperature. [E buffer: 50 mM Tris-Cl pH 8.0, 300 mM NaCl, 5 mM EDTA, pH 8.0, 2 SDS; autoclave and add 1 mM ATA and 14 mM ß-mercaptoethanol. ATA=aurintricarboxylic acid, ammonium salt (Sigma #A0885, St. Louis, MO)] 5. Thaw the powder in E buffer in 42°C

A quick RNA mini-prep for Neurospora mycelial cultures

. 4. Working quickly before powder can thaw, pour or spoon ground mycelia into 15 ml round bottom Sarstedt tube (Sarstedt tubes #60.540, Princeton, NJ) containing 8 ml of E buffer at room temperature. [E buffer: 50 mM Tris-Cl pH 8.0, 300 mM NaCl, 5 mM

Site-directed hydroxy radical mapping of nucleosome positions in vitro

Reconstitutions can be carried out by the standard dialysis methods for 2 hours against buffers of 20mM Tris-Cl pH 7.5, 1mM EDTA with sequentially 0.85M, 0.65M, 0.5M NaCl or KCl and then two steps with only 50mM Tris-Cl pH 7.5 (ie no NaCl, KCl or EDTA) (see note