Shop All RNA Purification Kits

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.

GeneJET RNA Purification Kit (Thermo Scientific™)

Thermo Scientific GeneJET RNA Purification Kit is a simple and efficient system for purification of total RNA from mammalian cultured cells, tissue, human blood cells, bacteria, and yeast.

The kit utilizes a silica-based membrane technology in the form of a convenient spin column, eliminating the need for tedious cesium chloride gradients, alcohol precipitation, or toxic phenol-chloroform extractions.

RNA molecules longer than 200 nucleotides can be isolated with the GeneJET RNA Purification Kit in 15 minutes after the lysis step. The high-quality purified RNA can be used in a wide range of downstream applications, including RT-PCR, RT-qPCR, Northern blotting, and other RNA-based analyses.

Highlights

Universal – can be used for both cell and tissue samples from a wide range of sources: mammalian blood, mammalian cell cultures, mammalian tissues, insect, yeast, and bacteria
Efficient – high yields of total RNA.
Fast – 15 minutes after lysis step
Pure – an A260/280 ratio > 1.9
Convenient – spin columns are capped and assembled with collection tubes

Applications

• Fast extraction of high purity RNA suitable for all conventional molecular biology procedures, including:
• RT-PCR
• RT-qPCR
• Northern blotting
• Nuclease protection assayIncludes Proteinase K Lysis Buffer Wash Buffer 1 (concentrated) Wash Buffer 2 (concentrated) Water, nuclease-free GeneJET RNA Purification Columns (pre-assembled with Collection Tubes) Collection Tubes (2 ml) Collection Tubes (1.5 ml) Detailed Protocol

RNAqueous™-96 Automated Kit (Invitrogen™)

The Ambion® RNAqueous®-96 Automated Kit is used for automated, phenol-free total RNA isolation from 100-500,000 cells or 0.1–1 mg tissue using a guanidinium-based lysis/denaturant and glass fiber filter separation technology. The kit contains enough reagents for 384 (4 x 96) RNA purifications. The RNAqueous®-96 Automated Kit uses an RNA-binding glass-fiber filter to provide high, reproducible yields of intact RNA. An optional on-the-filter DNase treatment can be performed to ensure removal of genomic DNA for RT-PCR applications. Downloadable protocols for the use of this kit with specific liquid handling systems are available at our Automation Resource.

GeneJET Plant RNA Purification Kit (Thermo Scientific™)

Thermo Scientific GeneJET Plant RNA Purification Mini Kit is designed for rapid and efficient purification of high quality total RNA from wide variety of plant species and tissue types.

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 standard procedure takes less than 20 minutes following cell lysis. Purified high quality RNA can be used in a wide range of downstream applications, such as RT-PCR, RT-qPCR, Northern blotting and other RNA-based analysis. RNA yields vary between different species, tissues, and age of tissue sample. See Table 1 for typical total RNA yields from various sources.

Highlights

Fast—procedure completed in 20 min following cell lysis
Convinient—protocol does not include clogging-prone lysate filtration step
High yield—up to 65 µg of high purity and high integrity RNA from 50 mg plant sample
Compatible with wide variety of samples (leaves, roots, sprouts and other parts of various plants)

Applications

• Fast extraction of high purity RNA suitable for all conventional molecular biology procedures, including:
• RT-PCR
• RT-qPCR
• Northern blotting
• Nuclease protection assay

GeneJET Whole Blood RNA Purification Mini Kit (Thermo Scientific™)

Thermo Scientific GeneJET Whole Blood RNA Purification Mini Kit is designed for rapid and efficient purification of high quality total RNA from whole blood and related body fluids.

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 standard procedure takes less than 15 minutes. The purified high quality RNA can be used in a wide range of downstream applications, such as RT-PCR, RT-qPCR, Northern blotting, and other RNA-based analysis.

Highlights

Efficient – up to 1.8 µg of total RNA from 500 µL of human blood
Convenient – spin columns are capped and assembled with collection tubes
Pure – RNA pure from enzyme inhibitors, proteins, ready to use in all demanding applications. Validated in cDNA synthesis and quantitative RT-PCR
Fast and simple – procedure takes less than 15 minutes and does not involve organic extraction or differential RBC lysis
Compatible – suitable for vide variety of samples - human and animal blood treated with EDTA, citrate or heparin, buffy coat, bone marrow, and related body fluids

Applications

• Fast extraction of high purity RNA suitable for all conventional molecular biology procedures, including:
• RT-PCR
• RT-qPCR
• Northern blotting
• Nuclease protection assaysncludes Lysis Buffer Wash Buffer WB 1 (concentrated) Wash Buffer 2 (concentrated) Water, nuclease-free GeneJET RNA Purification Columns (pre-assembled with collection tubes) Collection tubes, 2 mL Collection tubes, 1.5 mL Detailed Protocol

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

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.

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).

RiboMinus™ Human/Mouse Transcriptome Isolation Kit (Invitrogen™)

The RiboMinus™ Human/Mouse Transcriptome Isolation Kit constitutes a novel purification system that enriches the whole spectrum of mRNA species by depleting large ribosomal RNA molecules in a total RNA sample. The kit removes >95% of 18S and 28S rRNA molecules from human or mouse total RNA (Figure 1) without relying on current polyA+ purification methods. This increases the representation of mRNA species, including non-polyA-tailed, fragmented mRNA or other regulatory RNAs that cannot be purified via polyA-selection methods. Purified RNA is suitable for several downstream applications, including, library construction, RT-PCR, and microarray (Figure 2).

MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit, compatible with Tempus™ Blood RNA Tubes (Invitrogen™)

The MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit purifies total RNA (including miRNA) from Tempus™ Blood RNA Tubes using proven magnetic bead-based technology. A TURBO DNase™ step efficiently eliminates contaminating gDNA ensuring the highest purity RNA possible suitable for real-time RT-PCR and microarray analysis.

• Flexible purification format—use microfuge tubes, manual 96-well plates, or open-format automated 96-well plates from the same kit
• Simple magnetic bead workflow—no spin columns
• Total RNA without RNase activity, contaminating gDNA, or RT-PCR inhibitors

Maximize Total RNA Yields From Blood Samples
The MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit utilizes proven magnetic bead-based technology to purify maximal yields of total RNA from Tempus™ Blood RNA Tubes. The MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit can recover 3-25 µg from a single Tempus™ Blood RNA tube. A TURBO DNase™ step efficiently eliminates contaminating gDNA that can interfere with downstream applications and ensures the highest purity RNA possible.

The MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit can also detect miRNA from Tempus™ Blood RNA tubes as shown by TaqMan® gene expression assays. Users are strongly advised to perform appropriate validation studies against their miRNA targets.

Flexible Purification Formats
The MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit can be processed in low-, medium- or high-throughput formats with superior workflow and handling compared to traditional competitive methods.
• For low-throughput users, the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit can be used in individual 1.5mL microfuge tubes with the bead?RNA-complex remaining in a single processing tube until the final elution step.
• For medium-to-high–throughput users, the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit can be done in a 96-well processing plate with either a single or multi-channel pipettor to accelerate the purification process.
• For high-throughput users, the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit is compatible with manual and automated 96-well processing. Simply process multiple batches of tubes in series or in parallel, through the up-front centrifugation process, to the convenient stopping point, until enough samples can be loaded onto a 96-well processing plate for the RNA purification steps. The RNA purification process can be handled on either open-format liquid handlers, in conjunction with a 96-well magnetic stand on the deck, or magnetic bead movers like the MagMAX™ Express-96 Magnetic Particle Processor (deep well version only).

Rapid Processing Time
Processing times will vary based on format selected, but twelve Tempus™ Blood RNA tubes can be processed manually with the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit in approximately 2 hours.

An Alternative to Full Purification
For users who perform primarily TaqMan®-based real-time RT-PCR experiments, and do not need to archive RNA⁄cDNA, an alternative to the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit is the Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR. This kit makes it possible to perform expression analysis directly from Tempus™ Blood RNA tubes without conventional RNA purification.

One-Stop Shopping
MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit is compatible with our suite of reverse transcription mixes (SuperScript®), PCR master mixes (both TaqMan® and SYBR® based), and other blood workflow products. Simplify the ordering process and reduce freight cost by getting more from one supplier.

Specifications:
• Yield (Range): 3 - 25µg
• Quality (RIN) ): ≥ 7
• Quality (A260⁄280) ): 1.8 – 2.2
• gDNA (w⁄w) ): <1.56%
• Equipment Needed :
     *Refrigerated centrifuge (4°C) with swing bucket rotor capable of 5,000 x g with
     *50 mL conical tube adapters
     *50ml conical tubes
     *For tube format users: Tabletop microcentrifuge or picocentrifuge
• Number of Preps: 96 preparations (blood tubes)

NOTE: Blood tubes and magnetic stands are sold separately.

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

MEGAclear™-96 Transcription Clean-Up Kit (Invitrogen™)

The MEGAclear™-96 Kit is designed for the quick, high-throughput cleanup of any large-scale transcription reaction. The kit efficiently separates RNA from unincorporated NTPs, enzymes, and buffer components.

• Purifies transcription reactions in a 96-well format to produce high quality RNA free of unincorporated NTPs, enzymes, and buffer components
• Quick protocol—purify RNA in less than 20 minutes
• Can be adapted to robotic platforms

The MEGAclear™-96 Kit offers more consistent results and higher recovery than generic RNA isolation methods that have been adapted for RNA clean-up. The protocol is quick and easy. The sample is mixed with Binding Solution and ethanol, transferred to a 96-well filter plate, and washed twice; an elution step releases purified RNA, ready for any application requiring highly pure synthetic or in vitro-transcribed RNA. The MEGAclear-96 Kit can also be integrated with your robotic platform or used with manual methods.

Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR, compatible with Tempus™ Blood RNA Tubes (Invitrogen™)

The Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR makes it possible to perform expression analysis directly from a 500 µl aliquot of human whole blood collected in Tempus™ Blood RNA tubes without conventional RNA purification. This simple procedure creates a lysate that can go directly into reverse transcription and real-time PCR with the sensitivity and specificity equivalent to conventionally purified RNA. This kit saves time, generates much less waste, and offers a simple workflow that is suitable for a few samples or can easily be incorporated into automated, high throughput applications.

• Detect total RNA (including miRNA) from Tempus™ Blood RNA Tubes without purification
• Fast—Prepare 96 samples for TaqMan®-based real-time RT-PCR in under 1 hour
• Robust—500 µl sample processed at room temperature with results equivalent to those from purified RNA
• Flexible Format—Samples can be prepared in microfuge tubes or manual⁄automated 96-well plates

Simple Workflow Without Sacrificing Sensitivity & Specificity
The process consists of pelleting and washing a 500uL aliquot from the blood tube, followed by a unique digestion⁄DNase step which preserves RNA integrity. The preparation takes place entirely at room temperature unlike other products that require temperature-specific incubation steps. Up to 96 samples can be prepared in less than an hour, half the time it takes for competitive spin column purification to process only 12 samples, with less hands-on effort. The resulting lysate can go directly into one-step or two-step qRT-PCR reactions or stored for later use (1 hour at 4°C or 5 months frozen). This straightforward procedure takes place in the same sample processing well, from start to finish, meaning no sample transfers. The real-time RT-PCR data generated from the lysate is equivalent to results obtained from conventionally purified RNA from the same tubes and has been validated with the following qPCR reagents:
• Applied Biosystems’ High Capacity RNA-to-cDNA™ Kit and TaqMan® Gene Expression Master Mix
• Invitrogen’s SuperScript® VILO™ cDNA Synthesis Kit and TaqMan® Gene Expression Master Mix
• Applied Biosystems’ TaqMan® MicroRNA Reverse Transcription Kit and TaqMan® Universal Master Mix II
• Applied Biosystems’ TaqMan® One-Step RT-PCR Master Mix Reagents Kit
Reverse transcription reagents for cDNA synthesis, TaqMan® master mixes, and TaqMan® assays for real-time PCR analysis are sold separately and are not included with the kit.

The total number of reverse transcription and PCR reactions possible from one starting sample depends on the minimum sample requirements of the desired RT-PCR kits. Please see the user documentation for more details.

Screen, Discover, or Validate
For users with specific genes of interest, the Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR was designed to enable quick screening from a small amount of starting sample (approximately 5% of the total volume of a properly filled Tempus™ Blood RNA Tube per sample). The remainder of the blood tube can be archived for later use or purified as needed.

Those who perform discovery or validation experiments with real-time RT-PCR analysis will save effort, time, and overall cost with the Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR – while employing a scalable process allowing labs bottlenecked by conventional purification to finally start processing samples with ease.

miRNA Analysis
With the growing focus on non-coding RNA and its regulatory role in development and disease, it’s reassuring to know these small but important RNA molecules can be detected properly with the Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR. Our scientists have tested the lysate with the Applied Biosystems TaqMan® MicroRNA Reverse Transcription Kit and TaqMan® Universal Master Mix II against a large panel of TaqMan® microRNA assays and generated results equal to or better than those of the leading competitor’s miRNA purification product.

Reduced Footprint & Less Waste = More Savings
Competitive products, especially column-based methods, generate considerable amounts of plastic and biohazardous waste per sample (spin columns, tips, microfuge tubes, and reagents). The Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR simplifies the workflow so the total plastic waste is 75% less by weight for a comparable number of samples processed via columns. The kit generates no organic waste. It also has a space-saving footprint to maximize freezer capacity. Reduced hazardous waste disposal and less plastic consumption translate into cost savings – as well as reducing the environmental impact.

For Users Needing Full Purification: If conventional RNA purification is still required for the remnant blood tube, one option is the MagMAX™ for Stabilized Blood Tubes RNA Isolation Kit. This product maximizes your yield of total RNA from Tempus™ Blood RNA Tubes using proven magnetic bead-based separation technology.

One-Stop Shopping: The Stabilized Blood-to-CT™ Nucleic Acid Preparation Kit for qPCR is compatible with our suite of products (including RT and PCR master mixes that must be purchased separately). Simplify the ordering process and reduce freight cost by getting more from one supplier.

Specifications:
• Compatibility—Tempus™ Blood RNA Tubes
• Processing Time—Under 1 hour
• Format— microfuge tubes, 96-well plates
• Equipment Needed—Standard centrifuge capable of 5,000 x g with either 96-well plate or microfuge tube adaptors and 96-well plate or microfuge tube vortexer
• Number of Preps —200 reactions

NOTE: Blood tubes, reverse transcription reagents for cDNA synthesis, and TaqMan® master mixes for real-time PCR analysis are sold separately.

For Research Use Only. Not for use in diagnostics procedures.

PicoPure™ RNA Isolation Kit (Applied Biosystems™)

The Arcturus® PicoPure® RNA Isolation Kit is designed to recover high-quality total RNA consistently from fewer than ten cells, even from a single cell. This kit is designed to provide consistent, efficient RNA recovery without sacrificing quality. Small volume elution allows you to maximize your recovery of RNA from small numbers of cells for use with your gene expression analysis.

Key Product Features:

• Greater sensitivity—isolate RNA from even a single cell
• Superior efficiency—maximize RNA recovery from samples
• Streamlined concentration—elute with small volumes
• Flexible application—compatible with many tube sizes
• Integrated contamination prevention—column lids ensure that samples remain RNase free

Isolate RNA from Even a Single Cell
The PicoPure® RNA Isolation Kit is engineered to recover high-quality total RNA consistently from fewer than ten cells. The high recovery rate attained using this kit is valuable not only for small samples containing picograms of RNA but also for samples containing up to 100 µg of RNA. Since the RNA elutes in as little as 10 µl of buffer, it is ready for gene expression analysis without any vacuum concentration. This kit is available in two sizes, enough for 40 or 200 isolations.

Get Superior RNA Recovery
Small, valuable samples often cannot be replaced. Performing gene expression studies on these precious samples requires getting maximum RNA recovery. Comparative studies show that, with small, RNA-poor cell or tissue samples, the PicoPure® Kit dramatically outperforms other commercial total RNA isolation kits in efficiency.

Eliminate Time-consuming RNA Concentration
The simple isolation protocol consists of extracting cellular RNA, then loading the extract onto the specially designed MiraCol™ Purification Column to bind the RNA. After washing away impurities, the RNA elutes in only 10 µl of buffer, ready for use without vacuum concentration or transfer into a new reaction tube.

High Yield Purification Columns
The PicoPure® RNA Isolation Kit features unique, high-recovery MiraCol™ Purification Columns, engineered to maximize recovery from microscopic samples. The columns have convenient integrated lids to help ensure that samples remain RNase free. In addition, the Kit comes complete with all necessary buffers, an easy-to-follow User Guide, optimized protocols for handling Laser Capture Microdissected (LCM) samples, and protocols for isolating RNA from larger samples.

Deliver RNA Ready for Amplification and Microarray Analysis
RNA isolated with the PicoPure® RNA Kit is ready, without vacuum concentration, for amplification with the RiboAmp® RNA Amplification Kit. The two kits together allow for highly reproducible gene expression results.

Retain Low-abundance mRNA
The PicoPure® RNA Isolation Kit preserves mRNA in all abundance classes through the isolation process, minimizing the loss of important genes of interest. Low, medium, and high-abundance genes are consistently recovered and available for expression analysis.

Maintain High RNA Quality
The PicoPure® RNA isolation process allows for high-quality RNA. Total cellular RNA prepared from LCM samples remains intact after isolation, increasing confidence in subsequent molecular analysis.

MagMAX™-96 Total RNA Isolation Kit (Invitrogen™)

The MagMAX™-96 Total RNA Isolation Kit is designed for the rapid, moderate-throughput purification of RNA from animal and plant cells and tissue. RNA purified using the kit is ideal for PCR and RT-PCR applications. The kit uses magnetic bead–based purification and includes sufficient reagents for 96 reactions. Features of the MagMAX™-96 Total RNA Isolation Kit include:

• Enhanced lysis/binding conditions to accommodate larger sample inputs
• Reagents for TURBO DNase™ treatment included to minimize DNA contamination and preserve RNA integrity
• Includes protocol for RNA isolation from plant tissues
• 96 reactions per kit suitable for moderate throughput users

Benefits of MagMAX™ magnetic bead–based purification
Magnetic beads offer many benefits compared to other technologies for isolating RNA. Beads bind RNA more efficiently than glass fiber filters, resulting in higher and more consistent RNA yields. Additionally, because filters are not used, there is no risk of filter clogging due to cellular particulates in samples. Since only a small volume of magnetic beads is needed for high-efficiency binding, the bound RNA can be eluted in just 20–50 µL of nuclease-free water, concentrating RNA from large, dilute samples.

Accommodates diverse sample types
The kit accommodates diverse biological samples and a broad range of cell and tissue input amounts. The kit is optimized for high-throughput isolation of RNA from 25 cells to 2 x 106 cells, as well as small plant and mammalian tissue samples (up to 10 mg). The protocol is fully amenable to automation. Detailed guidelines for general automation are included with the kit, and downloadable protocols for the use of this kit with specific liquid handling systems are available at the Automation Resource.

Accessory products
Lysis/Binding Solution Concentrate (AM8500), Wash Solution 1 Concentrate (AM8504), and Wash Solution 2 Concentrate (AM8640) are components of the kit that may also be purchased separately. The Plant RNA Isolation Aid (AM9690) can be used in conjunction with the MagMAX™-96 Total RNA Isolation Kit for the isolation of RNA from plant tissues.

RiboMinus™ Transcriptome Isolation Kit, human/mouse (Invitrogen™)

RiboMinus™ Transcriptome Isolation Kits are novel purification systems that enrich the whole spectrum of RNA transcripts by depleting large ribosomal RNA molecules in a total RNA sample. These kits use a 5µ biotin-labeled, Locked Nucleic Acid (LNA) probe specific for large rRNA to remove 95-98% of rRNA molecules from human, mouse, bacteria, or yeast total RNA (Figure 1). This removal increases the representation of RNA transcript species, including non-poly(A) tailed, pre-processed RNA, small tRNAs, siRNA, snRNA, microRNA, fragmented mRNA, and other regulatory RNAs that cannot be purified via poly(A) selection methods.

The RiboMinus™ Transcriptome Isolation Kits enable:

Comprehensive analysis of the whole transcriptome without contamination or interference from rRNA
• More complete collection of transcribed elements of the genome—no reliance on poly(A) purification methods
• Cleaner, clearer microarray analysis due to higher signal-to-background ratios (Figure 2)

Purified RNA is concentrated and suitable for numerous downstream applications, including microarray analysis (Figure 2), library construction, and qRT-PCR.

RiboPure™ RNA Purification Kit, yeast (Invitrogen™)

For the isolation of extremely high-quality RNA from yeast without the use of enzymatic pretreatments that may alter gene expression profiles. Each Ambion® kit includes sufficient reagents for 50 purifications each from 107 to 108 yeast cells.

• Highest yields of total RNA available
• No enzymatic pretreatment required
• Includes DNA-free™ Reagents

It has traditionally been difficult to isolate high-quality RNA from yeast because of problems disrupting the cells. Many protocols use enzymatic pretreatments that may affect gene expression patterns. The RiboPure™-Yeast RNA Isolation Kit uses no enzymatic pretreatments and thus does not alter expression profiles. It combines a simple and efficient glass bead/one step phenol–mediated disruption using Ambion's Vortex Bead Beater Adapter (see Accessory Products) followed by a glass fiber filter– based RNA purification step. After DNase treatment with the included DNA-free™ Reagents, the resulting RNA is exceptionally pure containing little to no genomic DNA (less than 0.05%). The kit has been used extensively at Ambion to isolate high-quality RNA from Saccharomyces cerevisiae, Schizosaccharomyces pombe, Pichia pastoris, and Candida albicans (see Figure). The kit provides the highest yield of any method tested from each of these species (see Figure).

Accessory Products:
The Kit requires the use of the Vortex Adapter (SKU #AM10024), which turns a standard laboratory vortex into a bead beater. This adapter fits the Vortex Genie® 2 and holds 12 tubes.