Shop All RNA Purification Kits

Dynabeads™ mRNA DIRECT™ Purification Kit (Invitrogen™)

The Dynabeads® mRNA DIRECT™ Kit is designed for simple and rapid isolation of pure, intact polyadenylated (polyA) mRNA directly from the crude lysate of animal and plant cells and tissues. The isolated mRNA is suitable for use in all downstream applications. Advantages of the Dynabeads® mRNA DIRECT™ Kit:

Fast—15 minute procedure yields pure, intact mRNA
Highly pure mRNA isolation—best choice upstream of cDNA synthesis
Sensitive mRNA isolation—enables cDNA synthesis and cDNA library construction from ultra-small starting samples (enables cDNA library construction from a single cell)

System overview
The isolation protocol relies on base pairing between the polyA residues at the 3' end of most mRNA, and the oligo (dT)25 residues covalently coupled to the surface of the Dynabeads® . Other RNA species lacking a polyA tail will not hybridize to the beads and are readily washed away. Ribosomal RNA, DNA, proteins, and small RNA molecules (such as transfer RNA, micro RNA, and small nucleolar RNA) do not bind to the beads and are discarded. RNase inhibiting agents in the Lysis/Binding Buffer together with stringent hybridization and washing conditions ensure the isolation of pure, intact mRNA from crude samples rich in RNase, without the use of strong chaotropic agents. The mRNA purification beads specifically target and capture the mRNA transcriptome from an extremely wide variety of crude starting samples (see protocol). 1 mg of Dynabeads® Oligo (dT)25 beads (200 µL) binds up to 2 µg of mRNA. A typical mammalian cell contains about 10–30 pg of total RNA, from which 1–5% is mRNA.

PureLink™ Total RNA Blood Kit (Invitrogen™)

PureLink® Total RNA Blood Kit allows purification of high-quality total RNA from 50 - 500 µl fresh, whole mammalian blood, using non-phenol based purification in a simple spin column based protocol.
• RNA purification from whole blood in under an hour
• Yields high-quality RNA devoid of non-nucleated erythrocytes

Simple RNA Purification from Whole Blood
PureLink® Total RNA Blood Kit is designed for purifying from 50 to 500 µl fresh whole blood or approximately 3.5 x 106 leukocytes (white blood cells) in less than 1 hour. The entire protocol can be done in spin tubes and spin columns.

Leukocyte Enrichment for Improved RNA Purification
Whole blood consists of non-nucleated erythrocytes (red blood cells, 4 - 6 million/mm3) and leukocytes, with the latter present in the minority (5000 - 7000/mm3). Purifying total RNA from whole blood without the removal of erythrocytes results in low RNA yields and clogging of purification columns. The distinct feature of the PureLink® Total RNA Blood Kit is that it employs a leukocyte enrichment step. Hypotonic shock is used to selectively lyse erythrocytes while not affecting leukocytes. Non-nucleated erythrocytes are efficiently depleted, thus significantly reducing cell debris that may otherwise interfere with RNA purification and other downstream applications. Consequently, yields of high-quality total RNA are obtained using the PureLink® Total RNA Blood Kit.

Purified RNA is Suitable for Use with a Variety of Downstream Applications and Products:
Northern Blotting Kits & Reagents
Nuclease protection assays
Microarray
• cDNA synthesis
Real-Time PCR (qPCR)

For Research Use Only. Not intended for animal or human diagnostic or therapeutic use.

RiboPure™ RNA Purification Kit, blood (Invitrogen™)

The RiboPure™-Blood Kit is for the isolation of high-quality RNA directly from whole blood. The kit combines two methods of RNA purification to efficiently remove blood components (protein, heme, genomic DNA, and RNases) that can compromise downstream procedures. The kit includes sufficient reagents for 40 RNA purifications from whole blood samples ranging from 0.3–0.5 mL each. Advantages of the RiboPure™-Blood Kit:

• Purify total RNA directly from whole blood—without prior recovery of WBCs
• Simple, fast procedure—from blood to RNA in less than 30 minutes
• Includes RNAlater® Solution—store blood samples 3 days or more at room temperature
• Includes DNA-free™ Reagents—to ready RNA for RT-PCR and array analysis

Applications
The RiboPure™-Blood Kit produces high yields of pure RNA directly from whole blood, eliminating the need to isolate WBCs prior to RNA purification. RNA recovered using the RiboPure™-Blood Kit can be used in the most challenging applications, including real-time RT-PCR and array analysis. Average yields of RNA are between 2–4 µg/0.5 mL of whole blood (variation is due to differences in WBC numbers between samples).

Stabilize RNA in whole blood
When collecting blood samples for RNA analysis, storage of the samples prior to RNA isolation is often required. The RiboPure™-Blood Kit contains RNAlater® Solution for the stabilization of RNA in whole blood. It also "freezes" the gene expression profile of the cells. Treated samples can be safely stored at ambient temperature for extended periods of time (up to three days or more). Blood samples stored in RNAlater® Solution yield RNA of comparable quality to blood samples processed directly (see figure).

Simple procedure yields highly pure RNA
The RiboPure™-Blood procedure consists of three steps: 1) addition of Lysis Solution directly to RNAlater®-treated or fresh whole blood, 2) initial RNA purification by phenol/chloroform extraction, and 3) final RNA purification on a glass fiber filter. An additional DNase treatment can then be performed with the DNA-free™ Reagents included in the kit. The entire procedure, including DNase treatment, can be completed in less than 1 hour.

Accessory products
The RNA can subsequently be enriched for white blood cell (WBC) mRNA using our GLOBINclear™ Kits to selectively remove globin transcripts. The Mouse RiboPure™-Blood RNA Isolation Kit (Cat. No. AM0951) is also available for the recovery of total RNA—and optionally microRNA—directly from mouse or rat blood. Mouse RiboPure™-Blood includes sample tubes preloaded with RNAlater® Solution to prevent RNA degradation and preserve RNA profiles.

PureLink™ RNA Mini Kit (Invitrogen™)

The PureLink RNA Mini Kit is a column-based kit used to isolate high-quality total RNA from a wide variety of sample types in 20 minutes using standard laboratory equipment. The kit includes RNase-free lysis and wash solutions that protect RNA from RNases while liberating the RNA from DNA, proteins, and other cellular debris. The fast spin-column workflow is ideal for processing low to mid-throughput batch sizes. The advanced PureLink RNA Mini spin column design allows for maximum sample input (200 mg of tissue) and RNA recovery (up to 1000 µg). This means that users can process both small and large sample sizes with the same RNA isolation kit.

• Process sample inputs from 5–200 mg of animal/plant tissue or from 0.5 x 106 to 108 tissue culture cells with one spin column in 20 minutes
• Isolate more RNA than competitor mini spin columns: up to 1000 µg of total RNA from one column
• Use isolated RNA in most applications without the need for further DNase treatment (very low minimal residual DNA carry over)
• Flexible–optional on-column or post-isolation DNase treatment is available with PureLink DNase Set for easy removal of residual DNA

Extra-large binding capacity enables rapid RNA purification using standard laboratory equipment
The PureLink RNA Mini Kit provides rapid purification of total RNA from a wide range of cells and tissue types to yield up to 1000 µg of purified RNA from a single extraction (see Figure 1). High-quality total RNA can be obtained from mini- to midi-prep amounts of starting material with just trace amounts of residual genomic DNA contamination. The extra-large binding capacity enables one kit to handle most RNA isolation needs in a quick 20 minute protocol without the need for special sample processing instruments.

Easy, optional, on-column DNase treatment for sensitive applications
The PureLink RNA Mini Kit columns are highly efficient for isolating high quality total RNA while removing the majority of genomic DNA. In general, most applications requiring RNA from animal tissue or mammalian cell lines do not require additional DNase treatment. However, some applications such as gene expression analysis by qRT-PCR without intron-spanning primers or working with samples from organisms with very small or no introns may require more complete removal of residual contaminating DNA. The PureLink DNase Set allows for convenient on-column digestion of DNA during the RNA isolation protocol. Treating with DNase while “on-column” is easier and allows higher RNA recovery than treating with DNase after the RNA has been isolated. The PureLink DNase Set can also be used to remove residual DNA from RNA that has been previously purified. Both the “on-column” and post-RNA purification workflows are options available with the PureLink DNase Set.

Simplified, non-toxic RNA purification
The PureLink RNA Mini Kit utilizes non-toxic guanidine-isothiocyanate lysis buffer to protect the RNA during the isolation steps. Special RNase-free reagents combined with certified RNase-free silica membranes in a unique column configuration allow for a safe and easy procedure that can typically be completed in less than 20 minutes without the need of hazardous phenol/chloroform extraction, CsCl centrifugation, or LiCl or alcohol precipitation.

The PureLink RNA Mini Kit is recommended for use with the Homogenizer (Cat. No. 12183026), designed to homogenize cell or tissue lysates via centrifugation, prior to nucleic acid purification. The Homogenizer is especially effective for clarifying particulates from plant tissues.

For plant tissues rich in polyphenolics or starch (e.g., pine needles, potato tubers), we recommend using PureLink Plant RNA Reagent (Cat. No. 12322012) together with the PureLink RNA Mini Kit.

Dynabeads™ mRNA DIRECT™ Micro Purification Kit (Invitrogen™)

The Dynabeads® mRNA DIRECT™ Micro Kit is designed for simple and rapid isolation of pure, intact polyadenylated (poly(A)) mRNA. The kit isolates highly purified and intact mRNA directly from cells, tissue, and total RNA samples.

• Obtain extremely pure mRNA in about 15 minutes
• Integrate total RNA purification and mRNA enrichment steps
• Perform reverse transcription and PCR amplification right on the bead
• Use in whole transcriptome library preparation with the Ion Total RNA-Seq Kit v2.0

Rapid Isolation of High Purity mRNA Directly from Samples
The Dynabeads® mRNA Direct Kit contains magnetic beads for the isolation the mRNA transcriptome from a wide variety of samples. Isolation of intact mRNA is possible thanks to RNase inhibitiors in the Lysis/Binding buffer, combined with stringent hybridization and washing steps. Ribosomal RNA and small RNA molecules (transfer RNA, microRNA, small nucleolar RNA, and small cytoplasmic RNA) do not bind to the beads and are eliminated from the preparation. Only polyadenylated RNA species (mRNA) are captured, resulting in cleaner preparations and more sensitive results. Within minutes, pure mRNA is isolated and ready for use in downstream applications.

A Straightforward Enrichment Procedure
The Dynabeads® mRNA DIRECT™ Micro Kit uses a robust affinity purification principle for the enrichment of polyadenylated mRNA. Superparamagnetic Dynabeads®, coupled to oligo-(dT)25, are first equilibrated with Lysis/Binding Buffer, and then mixed with cell or tissue lysate in order to bind mRNA. The beads are then washed to remove contaminating RNA species, and then mRNA is eluted in as little as 5 µl of 10 mM Tris-HCl. The entire process is facilitated by the use of a neodymium magnet (purchased separately), which allows for the quick and efficient immobilization of the magnetic beads during buffer changes.

Designed for a Broad Range of Sample Types
Nearly any biological sample of vertebrate, invertebrate, plant, fungal, or bacterial origin can be used with the Dynabeads® mRNA DIRECT™ Kit. The kit is also ideal for extracting mRNA and viral polyadenylated RNA from blood, serum and sputum. Nucleic acid preparations, including total RNA and unfractionated nucleic acid samples, as well as formalin-fixed, paraffin-embedded (FFPE) tissues, may also be extracted using the Dynabeads® mRNA DIRECT™ Kit.

RNA is suitable for All Downstream Molecular Applications, Including:
• RNA-sequencing
• gene cloning
• cDNA synthesis, cDNA library construction
• RT-PCR, Quantitative RT-PCR
• RPA - Ribonuclease Protection Assay
• Subtractive Hybridization
• Dot/slot Hybridization
• Primer extension

For Research Use Only. Not for human or animal therapeutic or diagnostic use.

PureLink™ FFPE RNA Isolation Kit (Invitrogen™)

The PureLink® FFPE RNA Isolation Kit provides a simple, reliable, and rapid method to isolate high-quality total RNA from formalin-fixed, paraffin-embedded (FFPE) tissue specimens for retrospective basic and clinical biological studies of gene expression without the use of toxic organic solvents for deparaffinization.
• Offers a rapid and environmentally friendly procedure for the extraction of RNA from FFPE tissue specimens
• Isolates RNA with maximum yield and minimum degradation

Rapid and Non-Toxic Isolation Procedure
The PureLink® FFPE RNA Isolation Kit employs a simple heating procedure for deparaffinization, instead of relying on the use of toxic organic solvents such as xylene. RNA isolation can be completed in 30 - 40 minutes instead of days, as is required for older FFPE isolation methods (Figure 1). The heating procedure for deparaffinization partly restores RNA template structure for cDNA synthesis and improves template quality for reverse transcription.

High Yield, High Quality RNA
The PureLink® FFPE RNA Isolation Kit offers higher yields and purity as compared to other commercially available RNA purification systems, allowing for RT-PCR products over 1 kb in length (Figure 2). In addition, the PureLink® FFPE RNA Isolation Kit minimizes genomic DNA contamination of the purified RNA sample and provides an option for DNase digestion.

Purified Total RNA is Suitable for Use with a Variety of Downstream Applications and Products
RNA extracted from FFPE specimens is suitable for downstream applications such as reverse transcription, real-time PCR (qPCR), real-time RT-PCR (qRT-PCR), and microarray analysis.

For Research Use Only. Not intended for animal or human diagnostic or therapeutic use.

RNAqueous™-Micro Total RNA Isolation Kit (Invitrogen™)

The RNAqueous®-Micro Kit is used for phenol-free total RNA isolation from micro-sized samples (e.g., from <500,000 cultured cells, from few as 10 laser capture microdissected cells, or from ≤10 mg of tissue) using a guanidinium-based lysis/denaturant and glass fiber filter separation technology. DNA-free™ DNA removal reagents are included in the kit, making the isolated RNA especially suitable for RT-PCR. This kit provides:

• Highly concentrated RNA—for increased sensitivity in downstream assays
• Isolation of high-quality RNA from micro-scale samples
• Reagents/protocol for RNA recovery from LCM samples

How it works
Samples are solubilized in a powerful chaotropic solution, and RNA is purified on a glass fiber filter cartridge specifically designed for very small samples. A simple modification of the protocol allows recovery of both large and small RNA species including tRNAs, 5S rRNA, and microRNAs. The RNA is eluted in a minimal volume of 20 µL. Residual genomic DNA is efficiently removed using the DNA-free™ system included in the kit. The RNAqueous®-Micro Kit contains enough reagents for 50 RNA isolations of DNA-free RNA.

LeukoLOCK™ Fractionation & Stabilization Kit (Invitrogen™)

The LeukoLOCK™ Fractionation & Stabilization Kit is part of the LeukoLOCK™ Total RNA Isolation System, an innovative method for cellular fractionation of whole blood and total RNA stabilization and extraction from the leukocyte population. The LeukoLOCK™ system is comprised of a Fractionation & Stabilization kit (available separately here) and a LeukoLOCK™ Total RNA Isolation Kit, and is optimized for use with human blood. Blood is a storehouse of cellular information; however, the presence of globin mRNA in RNA prepared from whole blood can interfere with downstream expression profiling applications. The LeukoLOCK™ system employs filter-based leukocyte-depletion technology to isolate leukocytes from whole blood and RNAlater® Solution to stabilize the cells on the filter. By excluding red blood cells, the RNA that is purified from captured leukocytes is inherently depleted of globin mRNA, which improves sample utility for expression profiling and other applications (see Figure).

LeukoLOCK™ Fractionation & Stabilization Kit
A 9–10 mL sample of anticoagulated blood is passed through a LeukoLOCK™ filter, which captures the total leukocyte population while eliminating red blood cells (including reticulocytes), platelets, and plasma. After rinsing with phosphate-buffered saline, the filter is flushed with RNAlater® Solutionto stabilize the RNA in the captured leukocytes (see protocol schematic). The RNA can be isolated immediately, or stabilized cells can be maintained for several days at room temperature or for longer periods at –20°C or –80°C (see Figure).

GeneJET Stabilized and Fresh Whole Blood RNA Kit (Thermo Scientific™)

Thermo Scientific GeneJET™ Stabilized and Fresh Whole Blood RNA Kit is designed for rapid and efficient purification of high quality total RNA from various whole blood samples: fresh, frozen, or human blood samples stabilized with commercial stabilizers such as Tempus™ and PAXgene™.

The kit utilizes silica-based membrane technology in the form of a convenient spin column, eliminating the need for expensive resins, toxic phenol-chloroform extractions, or time-consuming alcohol precipitation. The kit includes a DNase l for the enzymatic removal of genomic DNA. RNA can be isolated from whole blood in less than 30 minutes (including cell lysis and DNase l treatment).

Highlights

Versatile—compatible with fresh and frozen blood, buffy coat, as well as blood collected in PAXgene™and Tempus™ Tubes
Convenient—specially optimized Lysis Buffer is suitable for RNA stabilization up to 48 h
Efficient—up to 4 µg of total RNA from 500 µL of healthy human blood
Pure—isolates intact total RNA free of any RT-qPCR inhibitors

Applications

Isolated total RNA can be used in:
• RT-PCR
• RT-qPCR
• Northern Blotting

Includes
• Lysis Buffer (R2841)
• Wash Buffer 1 (conc.)(R2851)
• Wash Buffer 2 (conc.)(R2861)
• DNase l (lyophilized)
• DNase I Reconstitution Buffer
• 2x DNase I Buffer
• Manganese Chloride Solution
• Water, nuclease-free
• GeneJET RNA Purification Columns pre-assembled with Collection Tubes
• Collection Tubes, 2 mL
• Collection Tubes, 1.5 mL

Related Products
Lysis Buffer for GeneJET Blood RNA Kit
Wash Buffer 1 for GeneJET Blood RNA Kit (concentrated)
Wash Buffer 2 for GeneJET Blood RNA Kit (concentrated)

MagMAX™ Plant RNA Isolation Kit (Applied Biosystems™)

The MagMAX Plant RNA Isolation Kit is designed for automated high-throughput or manual purification of total RNA from wide variety of plant species and tissue types. It utilizes paramagnetic bead technology, enabling high yields and robust performance. The high binding capacity, uniform particle size, and rapid magnetic response of MagMAX magnetic beads makes the technology ideal for high-throughput automatic nucleic acid purification, as well as for manual nucleic acid purification by low- throughput users. The resulting high quality purified RNA is free of proteins, nucleases, and other contaminants or inhibitors, and can be used in a wide range of downstream applications, such as RT-PCR, RT-qPCR, and other enzymatic reactions.

Versatile—suitable for any plant type and part, including woody, polyphenol-rich, and lignified samples
High yields of pure total RNA
High quality—isolates intact total RNA, free of inhibitors and gDNA contamination. Isolated RNA is suitable for long term storage at -20°C.
Flexible—easily adjustable for high-throughput automation platforms and manual processing

Applications
The MagMAX Plant RNA Isolation Kit is designed for fast extraction of high purity RNA suitable for all conventional molecular biology applications, including:
• RT-PCR
• RT-qPCR
• Northern blotting
• Nuclease protection assay

Benefits of MagMAX magnetic bead–based purification
The magnetic bead–based purification format of the kit allows for easy scaling of the number of samples processed either manually with a magnetic stand or with a magnetic particle processor such as the KingFisher Duo Prime or KingFisher Flex processors.

Magnetic beads offer many benefits compared to other technologies for isolating nucleic acids. Beads bind the RNA and DNA more efficiently than glass fiber filters, resulting in higher and more consistent yields. Additionally, because filters and vacuum manifolds are not used, there is no risk of undigested tissue particulates clogging these items during the extraction process. This clogging issue is of particular concern with fibrous plant tissue samples that that are not fully lysed during the disruption and homogenization steps.

Optimized bead surface chemistry
The Dynabeads MyOne Carboxylic Acid utilized in the MagMAX Plant RNA Isolation Kit has an optimized surface chemistry with high specific surface area that allows efficient kinetics and high sensitivity in nucleic acid capture. These aspects make Dynabeads magnetic technology ideal for the recovery of the RNA targets found in a variety of plant samples. Once captured, the RNA is then eluted in 100 µL and ready for downstream applications.

LeukoLOCK™ Fractionation & Stabilization Kit with Manual

The Ambion® LeukoLOCK™ Fractionation & Stabilization Kit is one of two kits that comprise the Total RNA Isolation System (patent pending), an innovative method for cellular fractionation of whole blood and total RNA stabilization and extraction from the leukocyte population. The kit includes sufficient reagents for 20 reactions. The LeukoLOCK™ System (SKU #AM1923) is optimized for use with human blood. Blood is a storehouse of cellular information; however, the presence of globin mRNA in RNA prepared from whole blood can interfere with downstream expression profiling applications. The LeukoLOCK™ System employs filter-based leukocyte-depletion technology to isolate leukocytes from whole blood and Ambion's RNAlater® Solution to stabilize the cells on the filter. By excluding red blood cells, the RNA that is purified from captured leukocytes is inherently depleted of globin mRNA, which improves sample utility for expression profiling and other applications (see Figure).

LeukoLOCK™ Fractionation & Stabilization Kit
A 9–10 mL sample of anticoagulated blood is passed through a LeukoLOCK™ filter, which captures the total leukocyte population while eliminating red blood cells (including reticulocytes), platelets, and plasma. After rinsing with phosphate-buffered saline, the filter is flushed with RNAlater® Solutionto stabilize the RNA in the captured leukocytes (see protocol schematic). The RNA can be isolated immediately, or stabilized cells can be maintained for several days at room temperature or for longer periods at –20°C or –80°C (see Figure).

Accessory Products:
LeukoLOCK™ Fractionation & Stabilization Kit is designed for use with the LeukoLOCK™ Total RNA Isolation Kit (SKU #AM1934). These kits are offered separately to accommodate blood sample collection at one location and sample processing at a different location, but may be purchased together as the LeukoLOCK™ Total RNA Isolation System (SKU #AM1923).

TRIzol™ Plus RNA Purification Kit (Invitrogen™)

The TRIzol® Plus RNA Purification Kit provides a simple, reliable, and rapid method for isolating high-quality total RNA from a wide variety of samples, including animal and plant cells, tissue, bacteria, and yeast. The kit combines the strong lysis capability of TRIzol® Reagent, followed by a convenient and time-saving silica-cartridge purification protocol from the PureLink® RNA Mini Kit, to provide ultrapure total RNA typically within an hour, even from difficult samples such as fibrous or fatty tissues.

Features of this kit include:

• Combined TRIzol®-based lysis and PureLink™ spin column-based RNA isolation technologies
• Superior lysis capability and convenient protocol

Two products in one
The TRIzol® Plus RNA Purification System couples the lysis capabilities of TRIzol® Reagent with the 1000 µg column-;binding capacity of the PureLink™ RNA Mini Kit, resulting in high RNA integrity and yield. The TRIzol® Plus RNA Purification System includes protocols for a variety of sample types, including fibrous or fatty tissues and plant material. The combination of TRIzol® Reagent followed by silica-cartridge purification of RNA is the recommended RNA purification method in the gene expression industry. The TRIzol® Plus RNA Purification Kit provides the reagents and an optimized protocol to purify total RNA for gene expression studies using an industry recommended method.

Simple lysis to column purification protocol
TRIzol® Reagent sample lysis maintains the integrity of the RNA, while disrupting cells and dissolving cell components. TRIzol® Reagent also provides an immediate and highly effective inhibition of RNase activity during sample homogenization. Following lysis, RNA in the lysed sample is bound to the clear silica-based membrane in the PureLink™ RNA Mini Kit Spin Cartridge, washed to remove contaminants, and then eluted in RNase-Free water (Tris Buffer, pH 7.5 may also be used).

Wash Buffer B for Dynabeads™ mRNA Purification Kits (Invitrogen™)

This Wash Buffer B is included in the following Dynabeads™ mRNA purification kits: Cat. Nos. 61006, 61011, 61012, and 61021. It is made available separately for applications that require more Wash Buffer B than is provided in the kit.

Mouse RiboPure™-Blood RNA Isolation Kit (Invitrogen™)

For the purification of extremely high-quality total RNA (and optionally, microRNA) from mouse or rat blood in about 35 minutes. The Ambion® kit includes sufficient reagents for 25 RNA purifications from whole blood samples ranging from 0.1–0.5 each.

• Includes RNAlater®, predispensed in 2 mL tubes, for RNA stabilization
• Resulting RNA is suitable for stringent downstream applications such as array analysis and qRT-PCR

Due to interference from the enzymatic inhibitors and anticoagulants present in blood samples, RNA purification from whole blood requires a stringent isolation method that yields high-quality RNA depleted of inhibiting agents and contaminants. The kit includes microfuge tubes preloaded with RNAlater® Tissue Collection:RNA Stabilization Solution, an aqueous, nontoxic storage reagent that prevents RNA degradation and preserves RNA profiles within samples. Stabilized samples can be stored at room temperature for up to 3 days or at –20°C for long-term storage. The related Figures show the performance of RNA isolated with the Mouse RiboPure™-Blood Kit in real-time RT-PCR. The kit includes an alternative protocol for isolating total RNA that contains microRNA. Typically, 30–55 µg of total RNA (containing microRNA) is obtained from 0.5 mL mouse blood. Yields from rat blood are considerably more variable, generally 18–40 µg from 0.5 mL blood.

iPrep™ Trizol™ Plus RNA Kit (Invitrogen™)

Use the iPrep™ Trizol® Plus RNA Kit for the highest purity, even from difficult samples such as fatty tissue. This kit provides reproducible RNA sample preparation from up to 50 mg of tissue, 10e7 cultured cells, 10 ml blood, and plant samples. The kit contains pre-filled, fully qualified cartridges to avoid any mix-ups or cross-contamination. It also provides low CVs and reduced purification variability, increasing the reliability of your gene expression assays.