RNeasy Plus Micro Kit
For purification of up to 45 µg total RNA from cells/tissues using gDNA Eliminator columns
- Unique gDNA Eliminator columns avoid the need for DNase
- Efficient removal of genomic DNA
- Highly reproducible yields of RNA in minutes
- High-performance RNA for sensitive applications
The RNeasy Plus Micro Kit integrates fast, convenient purification of up to 45 µg RNA with effective elimination of genomic DNA. Cell or tissue lysates are spun through gDNA Eliminator spin columns to remove genomic DNA. Total RNA is then purified using RNeasy MinElute spin columns. Tissue samples can be conveniently stabilized using RNAprotect Tissue Reagent or Allprotect Tissue Reagent, and efficiently disrupted using a TissueRuptor or TissueLyser system. For larger samples, the RNeasy Plus Mini Kit (spin-column binding capacity of 100 µg RNA) is also available. Procedurescan be fully automated on theQIAcube Connect.
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Cat No./ID:74034 RNeasy Plus Micro Kit (50) $462.00 For 50 micropreps: RNeasy MinElute Spin Columns, gDNA Eliminator Spin Columns, Collection Tubes, Carrier RNA, RNase-Free Water and Buffers |
Product Details
Cells and easy-to-lyse tissues are first lysed and homogenized in highly denaturing guanidine-isothiocyanate–containing Buffer RLT Plus, which immediately inactivates RNases to ensure isolation of intact RNA. The lysate is then passed through a gDNA Eliminator spin column that, in combination with the high-salt buffer, selectively and efficiently removes genomic DNA. Ethanol is added to provide appropriate binding conditions for RNA, and the sample is applied to an RNeasy MinElute spin column. These specialized columns each contain a silica membrane that specifically binds RNA from lysed cells.
Total RNA is purified from up to 5 x 105 cells or 5 mg tissue, making the RNeasy Plus Micro Kit well suited for small samples. A short workflow enables RNA purification with genomic DNA removal in less than 30 minutes (see flowchart "RNeasy Plus procedure"). Samples are first lysed and homogenized. The lysate is passed through a gDNA Eliminator spin column, ethanol is added to the flow-through, and the sample is applied to an RNeasy MinElute spin column. RNA binds to the membrane and contaminants are washed away. High quality RNA is eluted in as little as 14 µl water.
Different protocols are available for different starting materials. The protocols differ mainly in the lysis and homogenization of the sample. Once the sample is applied to the gDNA Eliminator spin column, the protocols are similar. The procedure provides an enrichment for mRNA since most RNAs <200 nucleotides (such as rRNAs and tRNAs) are excluded. The RNeasy Plus procedure can be modified to allow the purification of total RNA containing small RNAs, such as miRNA, from cultured cells.
When disrupting and homogenizing tissues in Buffer RLT Plus (supplied with the RNeasy Plus Micro Kit), excessive foaming may occur. This foaming is substantially reduced by adding Reagent DX (supplied separately) to Buffer RLT Plus before starting disruption and homogenization. Reagent DX has been carefully tested with the kit, and has no effect on RNA purity or on downstream applications.
RNA purified using the RNeasy Plus Micro Kit is ideally suited for downstream applications that are sensitive to low amounts of DNA contamination, such as quantitative real-time RT-PCR. The purified RNA can also be used in other applications.
The RNeasy Plus Micro Kit is suitable for small samples, including:
- Laser-microdissected cryosections
- Fine-needle aspirates
Specifications
Features | Specifications |
| Applications | Northern, dot, and slot blotting, end-point RT-PCR, quantitative, real-time RT-PCR, array analysis, next-generation sequencing |
| Elution volume | 14 µl |
| Format | Spin column |
| Integrated removal of genomic DNA | Yes |
| Main sample type | Tissue, cells |
| Processing | Manual (centrifugation) |
| Purification of total RNA, miRNA, poly A+ mRNA, DNA or protein | Total RNA |
| Sample amount | 5 x 10e5 cells or 5 mg tissue |
| Technology | Silica technology |
| Time per run or per prep | 25 min |
| Yield | Varies |
Product Resources
Product citations in scientific articles
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