saoさん
http://tools.invitrogen.com/content/sfs/manuals/15596018%20pps%20Trizol%20Reagent%20061207.pdf
ここの一部を抜粋して以下に示しておきます。
RNA Isolation Notes:
1. Isolation of RNA from small quantities of tissue (1 to 10 mg) or Cell (102 to 104) Samples:
Add 800 μl of TRIZOL® to the tissue or cells. Following sample lysis, add chloroform and
proceed with the phase separation as described in step 2. Prior to precipitating the RNA
with isopropyl alcohol, add 5-10 μg → RNase-free glycogen (Cat. No 10814) ← as carrier to
the aqueous phase. To reduce viscosity, shear the genomic DNA with 2 passes through a
26 gauge needle prior to chloroform addition. The glycogen remains in the aqueous
phase and is co-precipitated with the RNA. It does not inhibit first-strand synthesis at
concentrations up to 4 mg/ml and does not inhibit PCR.
glycogenを使って落としやすくするのはよくやられるみたいです。
僕のlabはお金がないのでやりませんが。。 |
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