title: GSM1232661: 482N1 shHmga2 empty 1; Mus musculus; RNA-Seq
library_construction_protocol: 1. Homogenization: Cells grown in monolayer were lysed directly in the culture dish by the addition of RNA-Bee with 1 ml of the reagent for a 6-well plate well. Pass the lysate through a pipette several times to ensure lysis. 2. Phase Separation: Add 0.2 ml chloroform per 1 ml of RNA-Bee, cap the tube and vortex for 15-30 seconds. Store the sample on ice for 5 minutes. Centrifuge the homogenate at 12,000g for 15 minutes at 4 degrees C. Following centrifugation, the sample forms the lower blue phenol-chloroform phase, interphase, and the upper colorless aqueous phase. RNA remains exclusively in the aqueous phase whereas DNA and proteins are in the interphase and organic phase. The volume of the aqueous phase is about 50% of the initial volume of RNA-Bee plus sample volume. Chloroform should not contain isoamyl alcohol or any other additives. 3. RNA Precipitation: Transfer the aqueous phase to a clean tube, add 0.5 ml of isopropanol, and store the sample for 5-10 minutes at room temperature. Centrifuge at 12,000g for 5 minutes at 4 degrees C. RNA precipitate (often not visible before centrifugation) forms a white-yellow pellet at the bottom of the tube. 4. RNA Wash: Remove the supernatant and washs the RNA pellet with 70% ethanol, shaking or vortexing to dislodge the pellet from the side of the tube. Centrifuge for 5 minutes at 12000g at 4 degrees C. Use at least 1 ml of ethanol solution per 1 ml of RNA-Bee used for the initial homogenisation. 5. RNA Solubilization: At the end of the procedure, briefly air-dry the RNA pellet (5-10 minutes). It is important not to let the RNA pellet dry completely, as this greatly decreases its solubility. Dissolve the RNA in water and incubate for 10-15 minutes at 55 degrees C. TruSeq Stranded mRNA protocol from Illumina
attributes.tag: GEO Accession
attributes.value: GSM1232661