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Dynabeads™ Protein G for Immunoprecipitation (Invitrogen™)

Dynabeads™ Protein G are uniform, 2.8 µm superparamagnetic beads with recombinant Protein G (~17 kDa) covalently coupled to the surface. Dynabeads Protein G provide a superior alternative to Sepharose™ or agarose slurry for immunoprecipitation (IP), and both manual and automated protocols are available.

• IP in less than 40 minutes
• High target protein yield with low antibody consumption
• Very low non-specific binding with high signal-to-noise ratio
• No columns, centrifugations, or time-consuming pre-clearing required
• High reproducibility and high throughput compatible with KingFisher™ instruments

Manual Dynabeads separation is fast and easy to perform
The manual protocol is simple and can be performed in under 40 minutes. First, the antibody for the target protein is incubated with the Dynabeads Protein G in a tube for 10 minutes. Excess antibody is washed away by placing the tube in a DynaMag™ magnet and removing the supernatant. The antibody-coated beads can then be used for a variety of downstream applications including IP, Co-IP, chromatin IP (ChIP), RNA IP (RIP), small-scale IgG purification, and protein purification. Bound material is easily collected using a DynaMag magnet due to the unique magnetic properties of the Dynabeads. The recombinant protein G on the beads contains no albumin binding sites, thus albumin is not co-purified during the procedure. The IP is fast and gives high yield, high reproducibility, and very little non-specific binding, thus pre-clearing is not required.

Automated Dynabeads separation helps increase throughput and reduces hands-on time
If you are working with several samples in parallel, the number of washing steps and the hands-on time increases proportionally with the number of samples. Pipetting and other manual handling tend to be less consistent than automation when working with many samples at a time. To better handle a medium- to high-throughput number of samples, reduce hands-on time, and secure high reproducibility, we have developed IP protocols for the KingFisher Flex and KingFisher Duo Prime instruments. The automated protocols replicate the manual protocols, obtaining equally high target protein yield and the same low non-specific binding and high reproducibility. It doesn’t matter if you are working with 10 or 96 samples, the IP protocol is less than 40 minutes regardless. Just load the reagents on the plates, push the “Start” button and by the time you have prepared for downstream analysis, the IP is done. Some optimization (e.g., incubation times) might be necessary depending on your antibody and the abundance and/or specificity of your target protein.

• Use the KingFisher Duo instrument for low to medium throughput (1-12 samples/run)
• Use the KingFisher Flex instrument for high throughput (12-96 samples/run)
See automated protocols
Watch a video about the KingFisher Flex instrument

Gentle separation causes minimal physical stress to proteins
The magnetic separation technology utilized by Dynabeads Protein G is rapid and gentle, causing minimal physical stress to your target proteins. This permits the isolation and concentration of labile composites that might otherwise dissociate or be damaged by proteases during long incubation times. Native protein conformation and large protein complexes are preserved.

Binding strength and capacity
Dynabeads Protein G allow for isolation of most mammalian immunoglobulins (Ig). The amount of Ig captured depends on the concentration of Ig in the starting sample and on the type and source of the Ig. 100 µL of Dynabeads Protein G will isolate approximately 25–30 µg human IgG from a sample containing 20–200 µg IgG/mL. Predominant Fc-binding allows optimal Ig orientation. The antibodies bind to the outer smooth surface of the beads, thus are not trapped in large pores as with Sepharose/agarose-based beads. All antibodies are available for protein binding, so low amounts of antibody are required while still obtaining the same high yield of target protein. The smooth bead surface is also responsible for the low non-specific binding that Dynabeads are known for.

Learn more about Dynabeads
• Dynabeads Protein A are also available as a "ready-to-go" kit with buffers included
See immunoprecipitation selection guides, data, and references
See magnets for Dynabeads separations
Find Dynabeads products for other applications

OEM purchase
To purchase Dynabeads Protein A and Protein G on an OEM basis, contact our Out-Licensing and OEM Sales department.

*Sepharose is a trademark of GE Healthcare Bio-Sciences AB.

Dynabeads™ GC-Combo (Applied Biosystems™)

For the selective enrichment of Giardia cysts and Cryptosporidium oocysts directly from water sample concentrates.

Performance tested: Validated IMS in the US Environment Protection Agency's Method 1623.

Benefits and features

• Significant improved recovery of Cryptosporidium & Giardia
• Simple procedure
• Reduced background debris aids detection by microscopy
• One clean 9mm slide well per sample
• Saves hours of hands-on processing time

This Product Contains: Dynabeads® coated with either anti-Cryptosporidium or anti-Giardia antibodies and SL buffer

Dynabeads™ M-280 Streptavidin (Invitrogen™)

Dynabeads® M-280 Streptavidin are the gold standard for the isolation and handling of biotinylated nucleic acids, antibodies, or other biotinylated ligands and targets. The very high binding affinity of the streptavidin-biotin interaction (Kd=10-15) is used in a vast number of applications. Benefits and features:

• Direct and fast isolation of any biotinylated molecule
• Low-charged and neutral beads, optimal for binding of DNA fragments, proteins, peptides, and antibodies
• Flexible protocols with gentle and efficient liquid-phase reaction kinetics
• Biomagnetic protocols are easily adapted to automated platforms
• High batch-to-batch reproducibility, securing consistent results in your application

About Dynabeads® M-280 Streptavidin
These uniform and superparamagnetic beads are 2.8 µm in diameter, with a monolayer, not a multilayer, of recombinant streptavidin covalently coupled to the surface and further blocked with BSA. The monolayer of streptavidin leaves the vast majority of the biotin binding sites sterically available for binding, not only of free biotin, but also for binding of biotinylated ligands/targets. They show rapid liquid-phase reaction kinetics. Their specific and defined surface allow for efficient capture, separation, and downstream handling. The streptavidin monolayer ensures negligible leakage, and the lack of excess adsorbed streptavidin ensures batch consistency and reproducibility of your results.Applications
Over the past 15 years, Dynabeads® M-280 Streptavidin have been used and cited for a very wide variety of applications. Key applications include preparing 2–5 kb samples for mate pair library sequencing using Illumina platforms preparing single-stranded DNA templates, isolation of RNA and DNA binding proteins, immobilization of large DNA fragments, purifying sequencing products, and the specific capture of nucleic acids. Dynabeads® are used on more than 25,000 routine IVD instruments worldwide. The product holds high standards with respect to reproducibility (both within and between batches), and automation ability, and drives reliability for your results.

Binding capacity
The size of the molecule and the biotinylation procedure will affect the binding capacity. The capacity also depends on steric availability and charge interaction between bead and molecule and between molecules. There are two or three biotin binding sites available for each streptavidin molecule on the surface of the bead after immobilization. One mg of Dynabeads® M-280 Streptavidin typically binds:

• 650–900 pmoles free biotin
• ~200 pmol biotinylated peptides
• ~10 µg biotinylated IgG
• ~10 µg ds-DNA
• ~200 pmol ss-oligonucleotides

Dynabeads™ MyOne™ Streptavidin T1 (Invitrogen™)

Dynabeads MyOne Streptavidin T1 are the gold standard for isolation and handling of biotinylated nucleic acids, antibodies, or other biotinylated ligands and targets. The very high binding affinity of the streptavidin-biotin interaction (Kd=10-15) is used in a vast number of applications. Benefits and features:

• Direct and fast isolation of any biotinylated molecule
• Flexible protocols with gentle and efficient liquid-phase reaction kinetics
• Low-charged and neutral beads, optimal for binding of proteins, peptides, and antibodies
• Their small but uniform size presents a high surface area per mg beads and a correspondingly high capacity for the target molecule
• Low sedimention rate, yet a high iron content, ensuring rapid magnetic separation
• Biomagnetic protocols are easily adapted to automated platforms
• High batch-to-batch reproducibility, securing consistent results in your application

About Dynabeads MyOne Streptavidin T1
These uniform and superparamagnetic beads are 1 µm in diameter, with a monolayer, not a multilayer, of recombinant streptavidin covalently coupled to the surface and further blocked with BSA. The monolayer of streptavidin leaves the vast majority of the biotin binding sites sterically available for binding, not only of free biotin, but also for binding of biotinylated ligands/targets. The beads show rapid liquid-phase reaction kinetics. Their specific and defined surface allow for efficient capture, separation, and downstream handling. The streptavidin monolayer ensures negligible leakage, and the lack of excess adsorbed streptavidin ensures batch consistency and reproducibility of your results. The 1 µm Dynabeads MyOne have a large surface area, high capacity, efficient magnetic pull, and a slow sedimentation rate during incubation. Tailor-made for use in automated protocols where high throughput is crucial.

Applications
Over the past 15 years, streptavidin-coupled Dynabeads have been used and cited for a very wide variety of applications. Key applications include preparing single-stranded DNA templates, isolation of RNA and DNA binding proteins, immobilization of large DNA fragments, purifying sequencing products, and the specific capture of nucleic acids. Easily adapted to automated processes. Dynabeads are used on more than 25,000 routine IVD instruments worldwide.

Binding capacity
The size of the molecule and the biotinylation procedure will affect the binding capacity. The capacity also depends on steric availability and charge interaction between bead and molecule and between molecules. There are two or three biotin binding sites available for each streptavidin molecule on the surface of the bead after immobilization. One mg of Dynabeads MyOne Streptavidin T1 typically binds:

• 950–1500 pmoles free biotin
• ~20 µg biotinylated IgG
• ~400 pmol biotinylated peptides
• ~20 µg ds-DNA
• ~400 pmol ss-oligonucleotides

Dynabeads™ Protein A for Immunoprecipitation (Invitrogen™)

Dynabeads™ Protein A are uniform, 2.8 µm superparamagnetic beads with recombinant Protein A (~45 kDa) covalently coupled to the surface. Dynabeads Protein A provide a superior alternative to Sepharose™ resin or agarose resin for immunoprecipitation (IP), and both manual and automated protocols are available.

• IP in less than 40 minutes
• High target protein yield with low antibody consumption
• Very low non-specific binding with high signal-to-noise ratio
• No columns, centrifugations, or time-consuming pre-clearing required
• High reproducibility and high throughput compatible with KingFisher™ instruments

Manual Dynabeads separation is fast and easy to perform
The manual protocol is simple and can be performed in under 40 minutes. First, the antibody for the target protein is incubated with the Dynabeads Protein A in a tube for 10 minutes. Excess antibody is washed away by placing the tube in a DynaMag™ magnet and removing the supernatant. The antibody-coated beads can then be used for a variety of downstream applications including IP, Co-IP, chromatin IP (ChIP), RNA IP (RIP), small-scale IgG purification, and protein purification. Bound material is easily collected using a DynaMag magnet due to the unique magnetic properties of the Dynabeads. The recombinant protein A on the beads contains no albumin binding sites, thus albumin is not co-purified during the procedure. The IP is fast and gives high yield, high reproducibility, and very little non-specific binding, thus pre-clearing is not required.

Automated Dynabeads separation helps increase throughput and reduces hands-on time
If you are working with several samples in parallel, the number of washing steps and the hands-on time increases proportionally with the number of samples. Pipetting and other manual handling tend to be less consistent than automation when working with many samples at a time. To better handle a medium- to high-throughput number of samples, reduce hands-on time, and secure high reproducibility, we have developed IP protocols for the KingFisher Flex and KingFisher Duo Prime instruments. The automated protocols replicate the manual protocols, obtaining equally high target protein yield and the same low non-specific binding and high reproducibility. It doesn’t matter if you are working with 10 or 96 samples, the IP protocol is less than 40 minutes regardless. Just load the reagents on the plates, push the “Start” button and by the time you have prepared for downstream analysis, the IP is done. Some optimization (e.g., incubation times) might be necessary depending on your antibody and the abundance and/or specificity of your target protein.

• Use the KingFisher Duo instrument for low to medium throughput (1-12 samples/run)
• Use the KingFisher Flex instrument for high throughput (12-96 samples/run)
See automated protocols
Watch a video about the KingFisher Flex instrument

Gentle separation causes minimal physical stress to proteins
The magnetic separation technology utilized by Dynabeads Protein A is rapid and gentle, causing minimal physical stress to your target proteins. This permits the isolation and concentration of labile composites that might otherwise dissociate or be damaged by proteases during long incubation times. Native protein conformation and large protein complexes are preserved.

Binding strength and capacity
Dynabeads Protein A allow for isolation of most mammalian immunoglobulins (Ig). The amount of Ig captured depends on the concentration of Ig in the starting sample and on the type and source of the Ig. 100 µL of Dynabeads Protein A will isolate approximately 25–30 µg human IgG from a sample containing 20–200 µg IgG/mL. Predominant Fc-binding allows optimal Ig orientation. The antibodies bind to the outer smooth surface of the beads, thus are not trapped in large pores as with Sepharose/agarose-based beads. All antibodies are available for protein binding, so low amounts of antibody are required while still obtaining the same high yield of target protein. The smooth bead surface is also responsible for the low non-specific binding that Dynabeads are known for.

Learn more about Dynabeads
• Dynabeads Protein A are also available as a "ready-to-go" kit with buffers included
See immunoprecipitation selection guides, data, and references
See magnets for Dynabeads separations
Find Dynabeads products for other applications

OEM purchase
To purchase Dynabeads Protein A and Protein G on an OEM basis, contact our Out-Licensing and OEM Sales department.

*Sepharose is a trademark of GE Healthcare Bio-Sciences AB.

CTS™ (Cell Therapy Systems) Dynabeads™ CD3/CD28 (Gibco™)

CTS™ Dynabeads™ CD3/CD28 are intended for ex vivo isolation, activation, and expansion of human T-cells in translational research. The technology—previously known as Xcyte™ Dynabeads™ or Dynabeads™ ClinExVivo™ CD3/CD28—has been used in a number of clinical studies. By combining anti-CD3 and anti-CD28 antibodies on Dynabeads, the beads provide both the primary and co-stimulatory signals that are required for activation and expansion of T cells. CTS Dynabeads CD3/CD28 are manufactured and controlled according to ISO 9001:2000 and ISO 13485:2012 requirements. A Device Master File is held with the FDA for cross-referencing in IND applications, and a CoA is available on request. In the US, CTS Dynabeads CD3/CD28 are available for clinical use only under an approved Investigational New Drug (IND) application. Dynabeads™ Human T-Expander CD3/CD28 (Cat. No. 11141D) is the research grade version of CTS Dynabeads CD3/CD28, containing the same amount and ratio of antibodies from the same clones as CTS Dynabeads CD3/CD28, and intended for small scale pre-clinical research.

Applications:
The CTS Dynabeads CD3/CD28 technology has been successfully used in ex vivo isolation, activation, and expansion of T-cells in a number of studies, including studies on HIV infection and cancer. Other potential applications for this novel technology include research into treatment of autoimmune and infectious diseases and prevention of complications associated with chemotherapy and allogeneic stem cell transplantation.

Dynabeads™ MyOne™ Streptavidin C1 (Invitrogen™)

Dynabeads® MyOne™ Streptavidin C1 are the gold standard for isolation and handling of biotinylated nucleic acids, antibodies, or other biotinylated ligands and targets. The very high binding affinity of the streptavidin-biotin interaction (Kd=10-15) is used in a vast number of applications. Benefits and features:

• Direct and fast isolation of any biotinylated molecule
• Flexible protocols with gentle and efficient liquid-phase reaction kinetics
• Well suited for nucleic acid applications with extreme demands
• Very low nonspecific binding of nucleotides and nucleic acids
• Low nonspecific binding of small and negatively charged proteins
• Their small but uniform size presents a high surface area per mg beads and a correspondingly high capacity for the target molecule
• Low sedimention rate, yet a high iron content, ensuring rapid magnetic separation
• Biomagnetic protocols are easily adapted to automated platforms
• High batch-to-batch reproducibility, securing consistent results in your application
• Production follows a validated process in compliance with cGMP for medical devices

About Dynabeads® MyOne™ Streptavidin C1
These uniform and superparamagnetic beads are 1 µm in diameter, with a monolayer, not a multilayer, of recombinant streptavidin covalently coupled to the surface. This leaves the vast majority of the biotin binding sites sterically available for binding, not only of free biotin, but also for binding of biotinylated ligands/targets. They are hydrophilic, negatively charged, and show rapid liquid-phase reaction kinetics. Their specific and defined surface allow for efficient capture, separation, and downstream handling. The streptavidin monolayer ensures negligible leakage, and the lack of excess adsorbed streptavidin ensures batch consistency and reproducibility of your results. The 1 µm Dynabeads® MyOne™ have a large surface area, high capacity, efficient magnetic pull and a slow sedimentation rate during incubation. Tailor-made for use in automated protocols where high throughput is crucial. The product holds high standards with respect to reproducibility (both within and between batches), and automation ability, and drives reliability for your results.

Applications
Over the past 15 years, Streptavidin-coupled Dynabeads® have been used and cited for a very wide variety of applications. Examples include direct/indirect isolation and downstream handling of nucleic acids, proteins/peptides and other target molecules. Ideal for sequence specific DNA/RNA capture in nucleic acid based diagnostics, specifically with samples with a high chaotropic salt concentration, immunoassays involving small biotinylated antigens and applications that are not compatible with BSA (these beads are not blocked with BSA). Easily adapted to automated processes. Did you know that Dynabeads® are employed on more than 25,000 routine IVD instruments worldwide?

Binding capacity
The size of the molecule and the biotinylation procedure will affect the binding capacity. The capacity also depends on steric availability and charge interaction between bead and molecule and between molecules. There are two or three biotin binding sites available for each streptavidin molecule on the surface of the bead after immobilization. One mg of Dynabeads® MyOne™ Streptavidin C1 typically binds:

• >2,500 pmoles free biotin
• ~20 µg biotinylated IgG
• ~400 pmol biotinylated peptides
• ~20 µg ds-DNA
• ~500 pmol ss-oligonucleotides

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.

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.

Dynabeads™ CD4 Positive Isolation Kit (Invitrogen™)

The Dynabeads® CD4 Positive Isolation Kit supplies superparamagnetic beads that enable gentle isolation of high-purity CD4+ T cells from whole blood, bone marrow, buffy coat, mononuclear cells (MNC), or tissue digests. The cells are released from the beads using the DETACHaBEAD® reagent to obtain bead- and antibody-free cells. Advantages of the Dynabeads® CD4 Positive Isolation Kit:

• Gentle isolation of CD4+ T cells from any sample—no columns required
• Bead- and antibody-free positive isolation of CD4+ cells for any downstream assay

About Dynabeads® CD4 Positive Isolation Kit
The Dynabeads® CD4 Positive Isolation Kit contains uniform, superparamagnetic beads (4.5 µm diameter) covalently coated with a monoclonal antibody specific for the CD4 membrane antigen predominantly expressed on the helper/ inducer subset of human T cells. The kit also includes a DETACHaBEAD® reagent that releases the Dynabeads® from the purified CD4+ cells. This gently magnetic isolation process gives highly viable bead- and antibody-free cells to be used in any downstream assay.

Magnetic bead-based separation offers easy handling
Dynabeads® are mixed with the sample in a tube where they bind to the target cells during a short incubation, after which the bead-bound cells are separated from unbound cells using a magnet. The positively isolated cells are then washed, and DETACHaBEAD® reagent is added to gently release the cells from the beads. This magnetic bead-based positive isolation method gives both bead- and antibody-free cells. The isolated CD4+ cells are phenotypically unaltered and suitable for any downstream application. This fast and gentle isolation method does not require the use of columns, and helps ensure high purity and viability of the isolated CD4+ cells. For depletion or isolation of untouched CD4+ cells, select from our range of Human CD4+ T Cell Isolation Products.

Learn more about Dynabeads® products
• Find Dynabeads® products for a whole range of applications.
• Find magnets for Dynabeads® separations.

Dynabeads™ MyOne™ Silane

An excellent tool for highly predictable and consistent extraction and isolation of nucleic acids from biological samples, following a simple magnetic separation protocol. Please note that this is a stand-alone product containing only Dynabeads® in a storage buffer. Our products Dynabeads® SILANE genomic DNA (Cat.no. 370-12D) or Dynabeads® SILANE viral NA (Cat.no. 370-11D) include the appropriate buffers and protocols you need to extract genomic DNA or viral nucleic acids respectively.

Magnetic particles from alternative suppliers often have a random size range distribution, surface area and binding capacity. This could compromise the reproducibility of your results. With Dynabeads® MyOne™ SILANE you are ensured a higher sensitivity, capacity and performance.

The small 1 µm Dynabeads® MyOne™ SILANE have an optimized silica-like surface chemistry and a high specific surface area, providing efficient kinetics and a high sensitivity in nucleic acid capture. Their uniform size and surface area also ensure reproducible results. The product holds reputable Dynal® high standards with respect to within- and between-lot reproducibility and automation ability.

Advantages:

• Highly predictable binding per mg of beads
• High sensitivity, allowing for a low detection limit
• For isolation of viral DNA⁄RNA, total RNA, genomic DNA, etc.
• Isolates both DNA and RNA
• Quicker than spin columns
• More cost-effective, yet performs to the same level as spin columns
• Automation-friendly (slow sedimentation rate + high magnetic mobility)
• Adjusted to customer requirements on a custom OEM basis

Applications:
• Isolation of total nucleic acids (DNA⁄RNA)from typical biological samples (e.g. serum⁄plasma, whole blood, etc.)
• Well suited for automated assays.
• Dedicated kits have been developed for isolation of viral nucleic acids and genomic DNA (available separately).

Additional Info:
Validation and customization (bead, buffer, protocol or format) can be made available on a custom OEM basis. For further information and price quotes for larger volumes of the silica-like Dynabeads® MyOne™ SILANE, please contact us at: ivd@invitrogen.com.

Dynabeads™ FlowComp™ Flexi Kit (Invitrogen™)

This gentle, easy-to-use and highly flexible kit allows you to positively isolate bead-free and flow-compatible cells in combination with your own antibody of choice. Now you can isolate practically any cell type from any species or starting sample using your own antibody. Immediately after positive isolation, the beads are released and removed from your cell sample. In this way, you avoid exposing your cells to potentially cytotoxic or immunogenic foreign substances like iron oxides or dextrans, a potential problem when working with biodegradable particles. In addition, your cells will not be exposed to the stress of being passed through a column.

The kit supplies you with everything you need for DSB-X™ biotinylation of your antibodies and subsequent isolation of your cell type of interest. This technology has been successfully used to isolate a number of cell subsets including human and mouse T cells, B cells, NK cells, monocytes, and endothelial cells.

Advantages:

• Combine with your antibody of choice to isolate any cell type
• No risk of your results being affected by the isolation method
• Gentle tube-based method - no columns needed
• High purity, recovery and viability
• Bead-free cells - compatible with flow cytometry analysis or for direct use in any cell-based assay

Starting sample:
Whole blood, PBMC/MNC, single cell suspensions from lymph nodes, spleen or other tissues.

Capacity:
The kit will process 2 x 109 mononuclear cells (MNC). Please note that the choice of antibody clone is of key importance for successful isolation (see package insert for technical recommendations).

Concentration:
Supplied at 15 mg beads per ml in phosphate buffered saline (PBS), pH 7.4, containing 0.1% bovine serum albumin (BSA) and 0.02% sodium azide.

Dynabeads™ CD34 Positive Isolation Kit (Invitrogen™)

Use this kit to isolate a high purity and yield of human CD34+ progenitor stem cells. Positively isolated cells are bead and antibody-free, phenotypically unaltered and suitable for any downstream applications including flow cytometry, functional studies, and cell culture to produce dendritic cells (DC's). The Dynal® CD34 Progenitor Cell Isolation System can also be used to isolate CD34+ cells from rhesus monkey (Macaca mulatta).

• Positive isolation of human CD34+ progenitor stem cells with bead release
• Stem cells can be isolated directly from whole blood, cord blood or bone marrow
• Isolated CD34+ cells can be used in any application, i.e. be derived into dendritic cells (DC's)

Starting samples:
PBMC from mobilized peripheral blood, bone marrow or cord blood.

Dynabeads™ Sheep-Anti Mouse IgG (Invitrogen™)

Dynabeads® Sheep anti-Mouse IgG binds monoclonal mouse IgG of your choice for specific cell isolation or depletion. All cells from all species except from mouse can be isolated with this product, depending only on the specific antibody of choice.

• Depletion: cells can be depleted from a sample
• Positive isolation: cells can be positively isolated from a sample for molecular applications
• Negative isolation: cells can be negatively isolated from a PBMC sample by adding an antibody cocktail of mouse IgGs towards the unwanted cells. Compatible with flow cytometry.

Note: For a more universal binding of your mouse IgG of any subclass, please use Dynabeads® Pan Mouse Ig (Cat.no. 110-41D or 110-42D).

Starting samples:
Whole blood, PBMC, buffy coat., tissue digests.

Dynabeads™ MX2 Mixer (Applied Biosystems™)

The Dynabeads® MX2 Mixer combines Dynabeads® MX Mixer Base (Cat. No. 159-02), Mixer Turret (Cat. No. 159-06), and 8-tube Mixing Wheel (Cat. No. 159-04). Designed for sample tubes ranging from 15 to 27 mm in diameter.

Dynabeads® MX mixers provide continuous gentle motion to obtain optimal binding of Dynabeads® with targets (e.g., cells, proteins, nucleic acids). Variable speed (5-40 rpm). Can be operated in both cold and warm conditions (4-37°C). Inter-changeable heads accommodate different tube sizes and sample volumes.