Shop All DNA⁄RNA Purification Kits & Reagents

mirVana™ miRNA Isolation Kit, with phenol (Invitrogen™)

The mirVana™ miRNA Isolation Kit uses a rapid procedure to isolate small RNAs from tissue and cells using an efficient glass fiber filter (GFF)-based method. The method isolates total RNA ranging in size from kilobases down to 10-mers. Each kit contains sufficient reagents and consumables for either 40 isolations of total RNA (including small RNAs), or 20 separate large and small RNA fractions.

Features of this kit include:

• Efficient isolation of small RNA-containing total RNA
• Enrich for small RNA (<200 nt) to increase sensitivity in downstream analyses
• Simple 30 minute procedure
• Ideal for miRNA, siRNA, shRNA, and snRNA analysis
• Compatible with virtually all cell and tissue types

Efficient recovery of small RNA
Current RNA purification procedures rely on organic extraction, followed by alcohol precipitation or adsorption of nucleic acid molecules on a GFF or silicate matrix. Unfortunately, the former procedure requires alcohol precipitation, which is time consuming and inefficiently recovers small RNAs. The latter procedure typically results in the loss of substantial amounts of small RNA. The mirVana™ miRNA Isolation Kit uses organic extraction followed by purification on a GFF under specialized binding and wash conditions. As a result, the kit effectively recovers all RNA—from large mRNA and ribosomal RNA down to 10-mers—from virtually all cell and tissue types. The mirVana™ miRNA Isolation Kit enables the isolation of small RNA-containing total RNA from samples consisting of 102–107 cultured cells or 0.5–250 mg tissue.

Enrich for small RNA
Although the mirVana™ miRNA Isolation Kit efficiently purifies all RNA larger than 10 nt, it also includes procedures for isolating RNA fractions, specifically enriched or depleted in small RNA species. Through the enrichment procedure included in the mirVana™ miRNA Isolation Kit, RNA molecules of ~200 nt and less can be efficiently purified away from the larger RNA species. The resulting RNA preparation is highly enriched for miRNAs, siRNAs, and/or snRNAs. Small RNA enrichment using the mirVana™ miRNA Isolation Kit procedure allows more sensitive small RNA detection with less background as compared to the same assay used with total RNA.

Accessory product
The mirVana™ miRNA Isolation Kit without Phenol is available for customers concerned about the cost of shipping organic chemicals such as Acid Phenol:Chloroform, which is included in the standard kit.

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

CloneChecker™ System (for screening bacterial colonies) (Invitrogen™)

CloneChecker™ System is a rapid method for screening recombinant bacterial colonies or liquid cultures of colonies for the presence of target plasmid DNA (1). The CloneChecker™ System:

• Screens bacterial colonies for plasmid DNA and insert of interest prior to purification
• Screens for inserts >200 bp in plasmids up to 15 kb by size comparison to the original vector or a DNA size marker
• Goes from plated colonies through lysis in less than 5 minutes
• Allows for supercoiled, restriction digest, or PCR analysis
• Works with single-copy plasmids starting with a 2-mm bacterial colony
• Includes sufficient reagents for processing 100 bacterial samples by supercoiled analysis (direct size comparison); and 100 samples by restriction endonuclease or PCR analysis

mirVana™ miRNA Isolation Kit, without phenol (Invitrogen™)

The mirVana™ miRNA Isolation Kit uses a rapid procedure to isolate small RNAs from tissue and cells using an efficient glass fiber filter (GFF)-based method. The method isolates total RNA ranging in size from kilobases down to 10-mers. Each kit contains sufficient reagents and consumables for either 40 isolations of total RNA (including small RNAs), or 20 separate large and small RNA fractions. Phenol must be purchased separately. Features of this kit:

• Efficient isolation of small RNA-containing total RNA
• Enrich for small RNA (<200 nt) to increase sensitivity in downstream analyses
• Simple 30 minute procedure
• Ideal for miRNA, siRNA, shRNA, and snRNA analysis
• Compatible with virtually all cell and tissue types

Efficient recovery of small RNA
Current RNA purification procedures rely on organic extraction, followed by alcohol precipitation or adsorption of nucleic acid molecules on a GFF or silicate matrix. Unfortunately, the former procedure requires alcohol precipitation, which is time consuming and inefficiently recovers small RNAs. The latter procedure typically results in the loss of substantial amounts of small RNA. The mirVana™ miRNA Isolation Kit uses organic extraction followed by purification on a GFF under specialized binding and wash conditions. As a result, the kit effectively recovers all RNA—from large mRNA and ribosomal RNA down to 10-mers—from virtually all cell and tissue types. The mirVana™ miRNA Isolation Kit enables the isolation of small RNA-containing total RNA from samples consisting of 102–107 cultured cells or 0.5–250 mg tissue.

Enrich for small RNA
Although the mirVana™ miRNA Isolation Kit efficiently purifies all RNA larger than 10 nt, it also includes procedures for isolating RNA fractions, specifically enriched or depleted in small RNA species. Through the enrichment procedure included in the mirVana™ miRNA Isolation Kit, RNA molecules of ~200 nt and less can be efficiently purified away from the larger RNA species. The resulting RNA preparation is highly enriched for miRNAs, siRNAs, and/or snRNAs. Small RNA enrichment using the mirVana™ miRNA Isolation Kit procedure allows more sensitive small RNA detection with less background as compared to the same assay used with total RNA.

Accessory product
The mirVana™ miRNA Isolation Kit is available for those who want a complete kit that includes the Acid Phenol:Chloroform.

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.

Easy-DNA™ gDNA Purification Kit (Invitrogen™)

The Easy-DNA™ Kit is a fast and easy way to isolate high-quality, high-molecular weight genomic DNA (gDNA) from a wide range of cells and tissue types. Sample sizes can range from a single hair follicle up to 1 gram of mammalian tissue. Other samples tested include mouse tails, plant leaves, yeast, and E. coli cells. These samples yield high-quality DNA with an average size between 100 kb and 200 kb, which is suitable for PCR, DNA hybridization, genomic DNA library construction, and other applications. Advantages of the Easy-DNA™ Kit include:

Reliability—high-quality genomic DNA from large or small samples of cells, tissue, plant, yeast, E. coli, blood, and even hair follicles
Simplicity—for most sample types, only 4 steps, typically requiring less than 90 minutes are needed to isolate high-quality DNA
Versatility—one kit is supported by optimized protocols for a variety of cell and tissue types

Simple workflow, quality results
Optimized protocols for a variety of cell and tissue types are included in the instruction manual supplied with the kit. Generally, small-scale gDNA preparations are performed in microfuge tubes, in which samples are mixed with Lysis Solution and incubated at 65°C for 10 minutes. After extraction with chloroform (not included in kit), precipitation, and reconstitution of the DNA pellet, the preparation is complete. The kit contains a protein degradation reagent (for use with high-protein–containing samples such as connective tissue), mussel glycogen for use as a co-precipitant for dilute DNA samples, and an RNase solution.

MicroSEQ™ ID Purification Combo Kit v2.0, with cartridges (Applied Biosystems™)

The MicroSEQ ID Purification Combo Kit v2.0 includes reagents for post-PCR and post-sequencing clean-up in the MicroSEQ ID microbial identification workflow. This version contains one tube of ExoSAP-IT Express Reagent for post-PCR clean-up and MicroSEQ ID Sequencing Clean-up Cartridges for post-sequencing clean-up.

ExoSAP-IT Express Reagent removes unincorporated dNTPs and primers from the post-amplification PCR mix in 5 minutes compared to 30 minutes with the original ExoSAP-IT Reagent while producing equivalent results. The MicroSEQ ID Sequencing Clean-up Cartridges provide a convenient and simple way to remove dye terminators, dNTPs, salts, and residual primers from cycle sequencing reactions. The end products can be used directly for sequencing on any Applied Biosystems genetic analyzer.

Comparability studies demonstrated equivalent results between the original ExoSAP-IT Reagent and the improved ExoSAP-IT Express Reagent coupled with the MicroSEQ ID Sequencing Clean-Up kit in the MicroSEQ ID workflow (see figure 1). Both ExoSAP-IT and ExoSAP-IT Express enzyme-treated PCR samples produced very similar sequencing results and the correct identification result.

ExoSAP-IT Express Reagent can be used downstream of the following PCR amplification kits:
• MicroSEQ 500 16S rDNA PCR Kit
• MicroSEQ Full Gene 16S rDNA PCR Kit
• MicroSEQD2 rDNA Fungal PCR Kit

MicroSEQ ID Sequencing Clean-up Cartridges can be used downstream of the following sequencing kits:
• MicroSEQ 500 16S rDNA Sequencing Kit
• MicroSEQ Full Gene 16S rDNA Sequencing Kit
• MicroSEQ D2 rDNA Fungal Sequencing Kit

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.

GeneJET Viral DNA/RNA Purification Kit (Thermo Scientific™)

Thermo Scientific GeneJET Viral DNA and RNA Purification Kit is designed for rapid and efficient purification of high quality viral nucleic acids from various human and mammalian liquid samples, and is compatible with common sample preservatives like EDTA, citrate, and heparin.

The kit utilizes a silica-based membrane technology in the form of a convenient spin column. Viral nucleic acids from lysed samples bind to the column membrane while impurities are effectively removed during subsequent washing and centrifugation steps. Ready-to-use nucleic acids are eluted from the column.

The purified viral nucleic acids are free of proteins, nucleases, and other contaminants or inhibitors of downstream applications. Isolated DNA and RNA can be directly used in PCR, qPCR, or other nucleic acid based assays.

Highlights

• Efficient purification of viral DNA and RNA from human and mammalian plasma, serum, blood, and cell-free samples
• Linear yields from a wide range of viral titers
• Tested with a variety of DNA and RNA viruses (HIV, HBV, HCV, HPV, CMV, EBV)
• Downstream compatibility with (RT)-PCR, (RT)-qPCR, and other nucleic acid based assays.

Applications

• Downstream use in qualitative and quantitative nucleic acid based assays, e.g. (RT)-PCR, (RT)-qPCRIncludes Column Preparation Liquid Lysis Solution Wash Buffer 1 (concentrated) Wash Buffer 2 (concentrated) Eluent Proteinase K Carrier RNA Spin Columns preassembled with Wash Tubes Wash Tubes (2 mL)

MicroSEQ™ ID Ultra Sequencing Clean-up 8-Strips Refill Kit (Applied Biosystems™)

The MicroSEQ™ ID Ultra Sequencing Clean-up 8-Strips Refill Kit is used for post-sequencing clean-up in the MicroSEQ™ ID workflow. It includes the 8-well strips that are part of the MicroSEQ™ ID Ultra Sequencing Clean-up 8-Strips Kit (Cat. No. A33246) but does not include the 96-well receiver plate. The gel filtration matrix used in the strip cartridges provides a convenient and simple way to remove dye terminators, dNTPs, salts, and residual primers from cycle sequencing reactions.

The MicroSEQ ID Ultra Sequencing Clean-up 8-Strips Refill Kit can be used downstream of the following sequencing kits:
• MicroSEQ™ 500 16S rDNA Sequencing Kit
• MicroSEQ™ Full Gene 16S rDNA Sequencing Kit
• MicroSEQ™ D2 rDNA Fungal Sequencing Kit

The kit consists of twelve 8-well strips suitable for 96 sequencing samples. It is ideal for low- to medium-throughput microbial-identification workflows. The end products can be used directly for sequencing on any Applied Biosystems™ genetic analyzers.

GeneJET Whole Blood Genomic DNA Purification Mini Kit (Thermo Scientific™)

Thermo Scientific GeneJET Whole Blood Genomic DNA Purification Mini 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 and yields purified DNA greater than 30 kb in size. Isolated DNA can be used directly in PCR, Southern blotting, and enzymatic reactions.

Highlights

Efficient—high yields of high molecular weight genomic DNA
Fast—20 minute procedure following cell lysis
Convenient—spin columns are capped and assembled with collection tubes
Pure—DNA pure from enzyme inhibitors, RNA and proteins. Ready to use for all demanding applications and validated in real-time PCR, endpoint PCR, multiplex PCR, and restriction enzyme digests
Compatible—suitable for wide variety of samples like fresh or frozen anticoagulated mammalian blood (treated with EDTA, Citrate or Heparine), aged blood, buffy coat, bone marrow, and body fluids

Applications

• Isolated genomic DNA is ideal for use in common molecular biology procedures, including:
• PCR and qPCR
• FastDigest and conventional restriction digestion
• Southern blotting Includes Proteinase K Solution Lysis Solution Wash Buffer WB I (concentrated) Wash Buffer II (concentrated) Elution Buffer GeneJET Purification Columns (pre-assembled with collection tubes) Collection tubes Detailed Protocol

PureLink™ PCR Micro Kit (Invitrogen™)

PureLink® PCR Micro Kits are ideal for purifying and concentrating DNA from low-yielding PCR or restriction digestion reactions. These highly purified DNA fragments and amplicons provide excellent results in downstream applications such as DNA sequencing, restriction digestion, cloning, PCR, and labeling. PureLink® PCR Micro Kits provide a simple and rapid method for purifying and concentrating DNA fragments ranging in size from 100 bp-12 Kb. The unique micro-nozzle design allows up to 95% recovery of DNA fragments with as little as a 5 µl elution volume. With less than a 10% coefficient of variance in the elution volume you can be sure that no ethanol is carried over from the wash steps giving you the best chance of success in downstream applications. Removal of primers, dNTPs, enzymes, and salts exceeds 98.5%. This kit can also efficiently remove unincorporated dye-labeled nucleotides from a cDNA labeling reaction.

PureLink™ PCR Purification Kit (Invitrogen™)

The PureLink PCR Purification Kit provides a more convenient, rapid, and high-yielding purification process compared to other companies' kits. After PCR amplification, purification of the PCR amplicons is required for many common downstream applications, including enzyme digestion, ligation, sequencing, and labeling experiments, to prevent enzymes (polymerase, restriction enzyme) and reaction components (dNTPs, primers, buffers, salts) from carrying over, contaminating, and negatively influencing the downstream experiments.

Advantages of the PureLink PCR Purification Kit include:
• 4X binding capacity compared to Company Q; 40 µg for the PureLink kit versus 10 µg from other companies' kits
• No need for tedious sample pH adjustments necessary with other kits
• Convenient and rapid protocol, completed in less than 10 minutes
• Optional size-selection buffers included for selectively purifying 300– 600 bp fragments or removing fragments < 300 bp

The PureLink PCR Purification Kit is based on the selective binding of dsDNA to silica-based membrane in the presence of chaotropic salts. Simply mix the PCR product with Binding Buffer and apply to the PureLink Spin Column. The dsDNA binds to the silica-based membrane in the column. Remove impurities by thorough washing with Wash Buffer. To purify the DNA, elute the dsDNA in low-salt Elution Buffer or water.The purified PCR product is suitable for automated fluorescent DNA sequencing, restriction enzyme digestion, and cloning.

PureLink™ HiPure Plasmid FP (Filter and Precipitator) Maxiprep Kit (Invitrogen™)

The PureLink™ HiPure Plasmid FP (Filter and Precipitator) Maxiprep Kit isolates plasmid DNA, from cell pellet to ultrapure DNA, in less than one hour. Using the HiPure Filter Columns and HiPure Precipitators supplied in the kit, you can purify plasmid DNA without the centrifugation steps required in traditional isolation protocols. The quality of the purified plasmid DNA is equivalent to that obtained by two passes through cesium chloride gradients - the most rigorous method for DNA purification - making it suitable for transfection and other applications requiring high-purity plasmid DNA. The PureLink™ HiPure Plasmid FP Maxiprep Kit (Table 1) provides:
• Simple protocols - bacterial lysate clarification and isopropanol precipitation without centrifugation
• Fast results - from E. coli cell pellet to high-purity, transfection-grade plasmid DNA in about 60 minutes
• High yields - up to 850 µg from a high-copy plasmid

How it works
The PureLink™ HiPure Plasmid FP Maxiprep Kit employs an alkaline lysis method to prepare and rapidly clear bacterial lysates without the need for centrifugation (Figure 1). The unique HiPure Filter Column includes a lysate filtration cartridge integrated into the anion-exchange column for single-step lysate clarification and plasmid DNA binding. Impurities such as RNA, proteins, and other contaminants are removed with a single wash, and ultrapure plasmid DNA is eluted with a high-salt buffer. To precipitate and desalt the DNA, isopropanol is added to the eluted DNA and the mixture is then applied to the HiPure Precipitator using a large syringe. After a subsequent washing and drying step, the plasmid DNA is easily eluted from the HiPure Precipitator with either TE buffer or water. The use of the precipitator eliminates the need for centrifugation, reducing the risk of losing the DNA pellet during supernatant removal, and saving time. The resulting DNA is ready to use in the most challenging applications. The entire protocol - from E. coli cell pellet to ultrapure transfection-grade plasmid DNA - can be completed in about an hour.

Highest yields and ready-to-use concentrations
The HiPure Precipitator has been optimized to allow for lower elution volumes (down to 500 µl) to produce highly concentrated DNA without a significant decrease in yields. In fact, yields at higher concentrations are consistently higher than the competitor kits (Figure 2). Yields and concentration can be adjusted to meet the needs of your downstream application.

GeneJET Plasmid Midiprep Kit (Thermo Scientific™)

Thermo Scientific GeneJET Plasmid Midiprep Kit, sufficient for 100 preps, is designed for large scale isolation of high quality plasmid DNA from recombinant E. coli cultures. The kit utilizes silica-based membrane technology in the form of convenient spin column. Each prep recovers up to 200 µg of high copy number plasmid DNA. The purified plasmid DNA can be used in a wide variety of molecular biology procedures, such as restriction endonuclease digestion, PCR, cloning, transformation, automated sequencing, in vitro transcription, and transfection of robust cell lines.

Highlights

Efficient—high yields up to 200 µg of high quality plasmid DNA from 50 mL of bacterial culture
High concentration of DNA purified—> 400 ng/ µL
Convenient—spin column format, centrifuge or vacuum protocols
Fast—procedure takes 60 minutes, considerably faster than using gravity flow columns

Applications

• Isolated plasmid DNA is suitable for all conventional molecular biology procedures, including:
FastDigest restriction enzyme digestion
• Automated fluorescent sequencing
• PCR
• Cloning
• Transformation
In vitro transcription
• Transfection of robust cell lines