Microscale Hot Borate RNA Extraction from Cotton Tissue 从棉花组织中提取微量RNA
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  • Microscale Hot Borate RNA Extraction from Cotton Tissue 从棉花组织中提取微量RNA

  • 点击:    作者:51protocol收集   来源: 日期:2007-03-22    本站论坛

1% sodium deoxycholic acid (deoxycholate, sodium salt) 1.0 gram
*10 mM DTT 0.154 grams
*1% IGEPAL CA-630 (Nonidet P-40, NP-40) 1.0 mL
*2% (w/v) PVP-40 2.0 grams

* = add just before use. To dissolve, add Borax, EGTA, SDS, and sodium deoxycholic acid to pre-warmed deionized, distilled water. Adjust pH to 9.0 with sodium hydroxide. DEPC-treat and autoclave.

For 38ml aliquot of XT Buffer:
DTT 0.6g
PVP 0.73g
IGEPAL 360µl

  • Proteinase K (10 mg/mL in DEPC-treated dd-water; store stock at -20°C)
  • 1X TE (10 mM Tris-Hcl, pH 7.5 with 1 mM EDTA, pH 8.0)
  • 2 M Potassium chloride
  • 2 M Potassium acetate, pH 5.5
  • 2 mM AND 8 mM Lithium chloride (keep in refrigerator)
  • 3 M Sodium acetate, pH 6.0
  • Ethanol, 70% and 100% (keep at -20°C)
  • Liquid nitrogen (for tissue grinding)

Time Estimates (For Four Different Samples)
Day 1 procedure takes 4 hours, including incubations, the first time you perform the procedure.

Day 2 steps #13-20 require 2 hours, including all spins. Step #21 is a two-hour incubation. Steps #22-23 take about 1 ½ hours to complete, depending on the method you use to remove the ethanol washes.

Protocol updated May 2003. Many thanks to Ryan Rapp.


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