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Arcturus™ Paradise™ PLUS 2 Round Kit, amino allyl (Applied Biosystems™)

The ARCTURUS® Paradise® PLUS Reagent System permits unprecedented gene expression analysis of millions of previously inaccessible samples. It is an integrated solution for gene expression studies from formalin-fixed, paraffin-embedded (FFPE) tissues, including reagents for tissue staining, RNA isolation and RNA amplification. Amplify RNA from as little as 5 ng of fixed RNA using methods that have been specially optimized to overcome the challenges of cross-linked templates.

This kit provides reagents for 2-round in-vitro transcription with aminoallyl aRNA labeling.

Key product features:
• Accelerated discovery process – unlock the tissue archives to access previously inaccessible samples
• Simplified procedure – achieve unprecedented results in six steps
• Streamlined application – integrate seamlessly into current workflow
• Efficient workflow – secure downstream success with the Paradise® QC Kit
• Comprehensive system – benefit from the only complete system for formalin-fixed samples

Unlock the Tissue Archives
Currently, tens of millions of tissue samples with known outcomes are available in tissue archives. The Paradise® PLUS Reagent System enables microarray and qRT-PCR analysis of these previously inaccessible samples, allowing retrospective studies to accelerate discoveries.

Achieve Unprecedented Results in Six Steps
Only six steps are required to take you from sample to results (See Figure 1).

Integrate Seamlessly into Current Workflow
The Paradise® PLUS Reagent System is compatible with all major microarray platforms. Robust and reproducible results are achieved using tools and techniques commonly employed in today’s research laboratories (See Figures 2, 3, 4, and 5).

Secure Downstream Success with the Paradise® QC Kit
Not all FFPE samples contain high quality RNA. Identify the best samples for your studies using a simple, real-time PCR research technique, and then proceed with confidence using these pre-qualified samples (See Figure 6).

Benefit from the Only Complete System for Formalin-fixed Samples
The Paradise® PLUS Reagent System is the only available solution that provides all the components necessary to prepare RNA from formalin-fixed, paraffin-embedded tissue samples for gene expression analysis. To ensure successful microarray results, the system includes reagents optimized for exceptional recovery of RNA and superior RNA amplification.

Integrated Systems for Microgenomics
The Paradise® PLUS Reagent System is a validated as part of the Arcturus® Complete System for Microgenomics®, an integrated solution for utilizing small quantities of RNA for gene expression analysis. This system features the ArcturusXT™ Laser Capture Microdissection (LCM) Instrument to procure pure cell populations. Arcturus Systems for Microgenomics enable accurate and sensitive microarray assays that reveal molecular signatures otherwise obscured in whole tissue samples or cell mixtures.

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

Click-iT™ Plus TUNEL Assay for In Situ Apoptosis Detection, Alexa Fluor™ 488 dye (Invitrogen™)

The Click-iT® Plus TUNEL assay detects apoptotic cells in tissue and cultured cell samples through the use of a small, highly specific labeling moiety and a bright fluorescent dye. After incorporation of the labeling moiety into DNA fragments, detection is achieved through a catalyzed “click” reaction using conditions mild enough to preserve the fluorescent signal from GFP or RFP.

More tools for apoptosis detection and measurement >

• Optimized for the detection of apoptotic cells in either tissue or cell samples
• Multiplex enabled—optimized to work with fluorescent dyes or proteins such as GFP and RFP
• Improved TUNEL assay—better label incorporation due to small reactive moiety
• Bright apoptotic signal—uses Alexa Fluor® dyes, resulting in a stable, non-photobleaching fluorescent signal
• Flexibility—the assay can be configured to test from 1 to 50 samples at a time

Fragmentation of cellular DNA is a hallmark of apoptosis. The TUNEL assay is the most widely used method to detect fragmented DNA in apoptotic cells in tissue samples. The TUNEL assay begins with incorporation of modified dUTP at the 3’-OH end of the fragmented DNA. The dUTP modification is often the addition of a fluorophore. And due to the size of the fluorophore, the modified dUTP can display lower than expected incorporation rates. These lower incorporation rates can affect the sensitivity of the TUNEL assay. Additionally, the fluorophores used in currently available TUNEL assays suffer from photobleaching and fluorescent spectral overlap issues, both of which reduce sensitivity and ability to multiplex the assay.

The Click-iT® Plus TUNEL assay was developed to address these issues. The assay uses dUTP modified with an alkyne group (a small bio-orthogonal functional group) that allows the nucleotide to be more readily incorporated. After incorporation, a highly specific click reaction between the alkyne group and an Alexa Fluor® picolyl azide fluorescent dye, and subsequent detection of that dye, results in a sensitive and specific assay for the detection of apoptotic cells. Because of the gentle reaction conditions, the Click-iT® Plus TUNEL assay enables multiplexing with fluorescent proteins or dyes.

The Click-iT® Plus TUNEL assay has been validated with several different formalin-fixed paraffin-embedded tissue types. In all cases the ability to multiplex with fluorescent proteins and dyes was preserved. Additionally, the ability to stain actin using fluorescent-labeled phalloidin was also preserved.

The Click-iT® Plus TUNEL assay contains all of the reagents needed to detect apoptotic cells from either tissue or cell samples. The reagents supplied in this kit can be used to test 50 samples and can be configured to test from 1 to 50 samples at a time.

Arcturus™ Paradise™ PLUS Whole Transcript Reverse Transcription Kit (WT-RT) (Applied Biosystems™)

The ARCTURUS® Paradise® PLUS Whole Transcript RT (WT-RT) Reagent System provides an efficient and reliable solution for purifying RNA from archived Formalin-Fixed Paraffin-Embedded (FFPE) tissue samples followed by reverse transcription of whole transcript for use in real-time PCR.

FFPE samples introduce unique challenges for gene expression profiling and gene expression quantitation, including chemical modification and fragmentation of RNA molecules. Storage of FFPE samples adds to these challenges through increased RNA degradation over time.

The Paradise® PLUS WT-RT Reagent System was specifically developed and specially optimized to provide high-quality RNA and robust reverse transcription (RT) from highly fragmented RNA obtained from archived FFPE samples over 20 years old (Figure 2).

Key product features:
• Simple workflow—minimal sample handling reduces chance of contamination (Figure 3)
• Efficient RNA extraction and isolation—saves time and minimizes sample loss
• Optimized RT reactions—generate cDNA representing the entire length of the transcript
• Accurate transcript analysis—results represent high, medium, and low-abundance expressing genes

Optimized RNA Extraction and Isolation from Archived FFPE Tissues
Figure 1 shows a comparison between total RNA yields using the Paradise® PLUS WT-RT Reagent System and a similar commercially available protocol. The average yield of the three replicate isolations illustrates the abundance of total RNA made available using the Paradise® PLUS WT-RT Reagent System. The Paradise® PLUS WT-RT Reagent System produces abundant total RNA for reverse transcription and subsequent qPCR analysis, up to three times more total RNA than obtained when a similar commercially available product was used for the same sample.

Superior Amplification Possible Over Wide Range of Targets
The sensitivity of the Paradise® PLUS WT-RT Reagent System was compared to similar reagent products available on the market that generate cDNA for use in real-time PCR reactions. As Figure 4 illustrates, improved Ct values were seen for all high-, medium- and low-expressing genes when the Paradise® PLUS product was used. Exon-spanning primers at varying distances from the 3’-end of the transcript (500 bp to 5 kb) were used to show increased sensitivity and improved transcription success compared to other commercially available products. The Paradise® PLUS WT-RT Reagent System successfully amplified all genes, suggesting the reagents provided in the kit are optimized to work together, saving you time and effort while producing high-quality results across the entire transcript.

Integrated Systems for Microgenomics
The Paradise® PLUS Reagent System is validated as part of Arcturus' complete Systems for Microgenomics®, an integrated solution for utilizing small quantities of RNA for gene expression analysis, and features the ARCTURUSXT Laser Capture Microdissection (LCM) Instrument to procure pure cell populations. ARCTURUS® Systems for Microgenomics permit accurate and sensitive microarray assays that reveal molecular otherwise obscured in whole tissue samples or cell mixtures.

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

Click-iT™ Plus TUNEL Assay for In Situ Apoptosis Detection, Alexa Fluor™ 594 dye (Invitrogen™)

The Click-iT® Plus TUNEL assay detects apoptotic cells in tissue and cultured cell samples through the use of a small, highly specific labeling moiety and a bright fluorescent dye. After incorporation of the labeling moiety into DNA fragments, detection is achieved through a catalyzed “click” reaction using conditions mild enough to preserve the fluorescent signal from GFP or RFP.

More tools for apoptosis detection and measurement >

• Optimized for the detection of apoptotic cells in either tissue or cell samples
• Multiplex enabled—optimized to work with fluorescent dyes or proteins such as GFP and RFP
• Improved TUNEL assay—better label incorporation due to small reactive moiety
• Bright apoptotic signal—uses Alexa Fluor® dyes, resulting in a stable, non-photobleaching fluorescent signal
• Flexibility—the assay can be configured to test from 1 to 50 samples at a time

Fragmentation of cellular DNA is a hallmark of apoptosis. The TUNEL assay is the most widely used method to detect fragmented DNA in apoptotic cells in tissue samples. The TUNEL assay begins with incorporation of modified dUTP at the 3’-OH end of the fragmented DNA. The dUTP modification is often the addition of a fluorophore. And due to the size of the fluorophore, the modified dUTP can display lower than expected incorporation rates. These lower incorporation rates can affect the sensitivity of the TUNEL assay. Additionally, the fluorophores used in currently available TUNEL assays suffer from photobleaching and fluorescent spectral overlap issues, both of which reduce sensitivity and ability to multiplex the assay.

The Click-iT® Plus TUNEL assay was developed to address these issues. The assay uses dUTP modified with an alkyne group (a small bio-orthogonal functional group) that allows the nucleotide to be more readily incorporated. After incorporation, a highly specific click reaction between the alkyne group and an Alexa Fluor® picolyl azide fluorescent dye, and subsequent detection of that dye, results in a sensitive and specific assay for the detection of apoptotic cells. Because of the gentle reaction conditions, the Click-iT® Plus TUNEL assay enables multiplexing with fluorescent proteins or dyes.

The Click-iT® Plus TUNEL assay has been validated with several different formalin-fixed paraffin-embedded tissue types. In all cases the ability to multiplex with fluorescent proteins and dyes was preserved. Additionally, the ability to stain actin using fluorescent-labeled phalloidin was also preserved.

The Click-iT® Plus TUNEL assay contains all of the reagents needed to detect apoptotic cells from either tissue or cell samples. The reagents supplied in this kit can be used to test 50 samples and can be configured to test from 1 to 50 samples at a time.

Intracellular pH Calibration Buffer Kit (Invitrogen™)

The Intracellular pH Calibration Buffer Kit enables the quantitation of intracellular pH when used in conjunction with pHrodo™ Red AM, pHrodo™ Green AM, or BCECF intracellular pH indicators. pHrodo™ Red AM and pHrodo™ Green AM are weakly fluorescent at neutral pH but increasingly fluorescent as the pH drops. Modification of pHrodo™ red and green dyes with AM ester groups results in an uncharged molecule that can permeate cell membranes. Once inside the cell, the lipophilic blocking groups are cleaved by nonspecific esterases, resulting in a compound that is retained within the intracellular space. Fluorescence intensity of the probes is then an indicator of intracellular pH. Subsequent use of the Intracellular pH Calibration Buffer Kit allows this intracellular pH to be quantified.

The Intracellular pH Calibration Buffer Kit contains a range of pH calibration buffers (pH 4.5, 5.5, 6.5, and 7.5), as well as valinomycin and nigericin, which help equilibrate the pH inside and outside of cells. After using pHrodo™ Red AM or pHrodo™ Green AM and measuring fluorescence intensity under experimental conditions, the cells are then resuspended in one of the calibration buffers to which valinomycin and nigericin have been added, and the fluorescence intensity measured again. This is repeated with the remaining calibration buffers so that a standard curve can be created and used to pinpoint the intracellular pH associated with the experimental conditions.

Arcturus™ Paradise™ PLUS qRT-PCR Kit (Applied Biosystems™)

The Arcturus® Paradise® PLUS Reagent System enables unprecedented gene expression analysis of millions of previously inaccessible samples. The Paradise® PLUS Reagent System is an integrated solution for gene expression studies from formalin-fixed, paraffin-embedded (FFPE) tissues, including reagents for tissue staining, RNA isolation and RNA amplification.

Key product features:
• Accelerated discovery process – unlock the tissue archives to access previously inaccessible samples
• Streamlined application – integrate seamlessly into current workflow
• Efficient workflow – secure downstream success with the Paradise® QC Kit
• Comprehensive system – benefit from the only complete system for formalin-fixed samples

Unlock the Tissue Archives
Currently, tens of millions of tissue samples with known outcomes are available in tissue archives. The Paradise® PLUS Reagent system enables microarray and qRT-PCR analysis of these previously inaccessible samples, allowing retrospective studies to accelerate discoveries. Achieve unprecedented results in just six steps (Figure 1).

Integrate Seamlessly into Current Workflow
The Paradise® PLUS Reagent System is compatible with all major gene expression platforms. Robust and reproducible results are achieved using tools and techniques commonly employed in today’s research laboratories.

Secure Downstream Success with the Paradise® QC Kit
Not all FFPE samples contain high quality RNA. Identify the best samples for your studies using a simple, real-time PCR research technique, and then proceed with confidence using these pre-qualified samples.

Benefit from the Only Complete System for Formalin-fixed Samples
The Paradise® PLUS Reagent System is the only available solution that provides all the components necessary to prepare RNA from formalin-fixed, paraffin-embedded tissue samples for gene expression analysis. To ensure successful gene expression results, the system includes reagents optimized for exceptional recovery of RNA and superior reverse transcription and RNA amplification (Figure 3).

Integrated Systems for Microgenomics
The Paradise PLUS Reagent System is validated as part of Arcturus' complete Systems for Microgenomics®, an integrated solution for utilizing small quantities of RNA for gene expression analysis, and features the ArcturusXT Laser Capture Microdissection (LCM) Instrument to procure pure cell populations. Arcturus' Systems for Microgenomics enable accurate and sensitive microarray assays that reveal molecules otherwise obscured in whole tissue samples or cell mixtures.

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

Click-iT™ Plus TUNEL Assay for In Situ Apoptosis Detection, Alexa Fluor™ 647 dye (Invitrogen™)

The Click-iT® Plus TUNEL assay detects apoptotic cells in tissue and cultured cell samples through the use of a small, highly specific labeling moiety and a bright fluorescent dye. After incorporation of the labeling moiety into DNA fragments, detection is achieved through a catalyzed “click” reaction using conditions mild enough to preserve the fluorescent signal from GFP or RFP.

More tools for apoptosis detection and measurement >

• Optimized for the detection of apoptotic cells in either tissue or cell samples
• Multiplex enabled—optimized to work with fluorescent dyes or proteins such as GFP and RFP
• Improved TUNEL assay—better label incorporation due to small reactive moiety
• Bright apoptotic signal—uses Alexa Fluor® dyes, resulting in a stable, non-photobleaching fluorescent signal
• Flexibility—the assay can be configured to test from 1 to 50 samples at a time

Fragmentation of cellular DNA is a hallmark of apoptosis. The TUNEL assay is the most widely used method to detect fragmented DNA in apoptotic cells in tissue samples. The TUNEL assay begins with incorporation of modified dUTP at the 3’-OH end of the fragmented DNA. The dUTP modification is often the addition of a fluorophore. And due to the size of the fluorophore, the modified dUTP can display lower than expected incorporation rates. These lower incorporation rates can affect the sensitivity of the TUNEL assay. Additionally, the fluorophores used in currently available TUNEL assays suffer from photobleaching and fluorescent spectral overlap issues, both of which reduce sensitivity and ability to multiplex the assay.

The Click-iT® Plus TUNEL assay was developed to address these issues. The assay uses dUTP modified with an alkyne group (a small bio-orthogonal functional group) that allows the nucleotide to be more readily incorporated. After incorporation, a highly specific click reaction between the alkyne group and an Alexa Fluor® picolyl azide fluorescent dye, and subsequent detection of that dye, results in a sensitive and specific assay for the detection of apoptotic cells. Because of the gentle reaction conditions, the Click-iT® Plus TUNEL assay enables multiplexing with fluorescent proteins or dyes.

The Click-iT® Plus TUNEL assay has been validated with several different formalin-fixed paraffin-embedded tissue types. In all cases the ability to multiplex with fluorescent proteins and dyes was preserved. Additionally, the ability to stain actin using fluorescent-labeled phalloidin was also preserved.

The Click-iT® Plus TUNEL assay contains all of the reagents needed to detect apoptotic cells from either tissue or cell samples. The reagents supplied in this kit can be used to test 50 samples and can be configured to test from 1 to 50 samples at a time.

ReadyProbes™ Cell Viability Imaging Kit, Blue/Red (Invitrogen™)

ReadyProbes® Cell Viability Imaging Kit (Blue/Red) is a ready-to-use kit that can quickly and easily determine the viability of cells. Just add 2 drops each of room temperature, stable NucBlue® Live reagent (Hoechst 33342) and propidium iodide to 1 mL of cell growth media, then determine viability by counting total vs dead cells. NucBlue® Live reagent stains the nuclei of all the cells and can be detected using a standard DAPI filter. Propidium iodide stains only the nuclei of cells with compromised plasma membrane integrity and is detected with a standard TRITC/RFP (orange) filter set. This kit is appropriate for fluorescence microscopy, fluorescence micro plate readers, and flow cytometry.

NucBlue® Live reagent: stains the nuclei of all cells; detected with a standard DAPI filter (excitation/emission maxima: 360/460 nm)
Propidium iodide: stains the nuclei of dead cells with compromised plasma membrane; detected with standard TRITC/RFP (orange) filter set (excitation/emission maxima: 535/617 nm)
See other ReadyProbes® reagents for cell staining
Learn more about other assays for cell viability

Suggestions for use
• NucBlue® Live reagent and propidium iodide can be added directly to cells in full growth media or a compatible buffer solution.
• In most cases, 2 drops/mL and an incubation time of 5 to 30 minutes will give bright nuclear staining; however, optimization may be needed for some cell types, conditions, and applications. In such cases, simply add more or fewer drops until the optimal staining intensity is obtained.

Arcturus™ Paradise™ PLUS qRT-PCR Kit, no solvents (Applied Biosystems™)

The ARCTURUS® Paradise® PLUS Reagent System enables unprecedented gene expression analysis of millions of previously inaccessible samples. The Paradise® PLUS Reagent System is an integrated solution for gene expression studies from formalin-fixed, paraffin-embedded (FFPE) tissues, including reagents for tissue staining, RNA isolation and RNA amplification.

Key product features:
• Accelerated discovery process – unlock the tissue archives to access previously inaccessible samples
• Streamlined application – integrate seamlessly into current workflow
• Efficient workflow – secure downstream success with the Paradise® QC Kit
• Comprehensive system – benefit from the only complete system for formalin-fixed samples

Unlock the Tissue Archives
Currently, tens of millions of tissue samples with known outcomes are available in tissue archives. The Paradise® PLUS Reagent system enables microarray and qRT-PCR analysis of these previously inaccessible samples, allowing retrospective studies to accelerate discoveries. Achieve unprecedented results in just six steps (Figure 1).

Integrate Seamlessly into Current Workflow
The Paradise® PLUS Reagent System is compatible with all major gene expression platforms. Robust and reproducible results are achieved using tools and techniques commonly employed in today’s research laboratories.

Secure Downstream Success with the Paradise® QC Kit
Not all FFPE samples contain high quality RNA. Identify the best samples for your studies using a simple, real-time PCR research technique, and then proceed with confidence using these pre-qualified samples.

Benefit from the Only Complete System for Formalin-fixed Samples
The Paradise® PLUS Reagent System is the only available solution that provides all the components necessary to prepare RNA from formalin-fixed, paraffin-embedded tissue samples for gene expression analysis. To ensure successful gene expression results, the system includes reagents optimized for exceptional recovery of RNA and superior reverse transcription and RNA amplification (Figure 3).

Integrated Systems for Microgenomics
The Paradise® PLUS Reagent System is validated as part of Arcturus' complete Systems for Microgenomics®, an integrated solution for utilizing small quantities of RNA for gene expression analysis, and features the ARCTURUSXT Laser Capture Microdissection (LCM) Instrument to procure pure cell populations. Arcturus' Systems for Microgenomics enable accurate and sensitive microarray assays that reveal molecules otherwise obscured in whole tissue samples or cell mixtures.

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

Click-iT™ EdU Pacific Blue™ Flow Cytometry Assay Kit (Invitrogen™)

The Click-iT® EdU Pacific Blue™ Flow Cytometry Assay Kit provides a simplified, more robust assay for analyzing DNA replication in proliferating cells as compared to traditional BrdU methods. Newly synthesized DNA is analyzed using the 405 nm laser of the flow cytometer.

Accurate—superior results compared to BrdU assays
Fast—results in as little as 90 minutes
Economical—more assays per kit

View selection guide for all Click-iT™ EdU and Click-iT™ Plus EdU assays for flow cytometry.

An Advanced Method Giving You Results Superior to BrdU
The most accurate method of proliferation analysis is direct measurement of DNA synthesis. Originally, this was performed through incorporation of radioactive nucleosides, i.e., 3H-thymidine. This method was replaced by antibody-based detection of the nucleoside analog bromodeoxyuridine (BrdU). The Click-iT® EdU Flow Cytometry Assay Kits are novel alternatives to the BrdU assay. EdU (5-ethynyl-2´-deoxyuridine) is a thymidine analog which is incorporated into DNA during active DNA synthesis. Detection is based on click chemistry: a copper catalyzed covalent reaction between an azide and an alkyne. In this application, the alkyne is found in the ethynyl moiety of EdU, while the azide is coupled to Alexa Fluor ® 488, Alexa Fluor® 647, or Pacific Blue™ dyes. Standard flow cytometry methods are used for determining the percentage of S-phase cells in the population (Fig 1).

Mild Conditions Allow Use with Cell Cycle Dyes and Antibodies
The advantages of Click-iT® EdU labeling are readily evident while performing the assay (Fig 2). The small size of the dye azide allows for efficient detection of the incorporated EdU using mild conditions, while standard aldehyde-based fixation and detergent permeabilization are sufficient for the Click-iT® detection reagent to gain access to the DNA. This is in contrast to BrdU assays that require DNA denaturation (using HCl, heat, or digestion with DNase) to expose the BrdU so that it may be detected with an anti-BrdU antibody. Sample processing for the BrdU assay can result in signal alteration of the cell cycle distribution as well as destruction of antigen recognition sites when using the HCl method. In contrast, the easy-to-use EdU cell proliferation kit is compatible with cell cycle dyes. This EdU assay kit can also be multiplexed with antibodies against surface and intracellular markers.

Quick and Simple Protocol
The Click-iT® EdU protocol is based on the aldehyde fixation and detergent permeabilization steps for immunohistochemical antibody labeling, but EdU is compatible with other fixation/permeabilization agents including saponin and methanol. In just five steps you’ll be ready to analyze your cell proliferation data:

• Treat cells with EdUM
• Fix and permeabilize cells
• Detect S-phase cells with Click-iT® detection cocktail for 30 min
• Wash once
• Analyze

Get Accurate Results Economically
By increasing the number of assays per kit, the Click-IT® EdU Pacific Blue™ Flow Cytometry Assay Kit is less expensive than the traditional BrdU assays making them ideal for large experiments.

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

ABC Peroxidase Standard Staining Kit (Thermo Scientific™)

Thermo Scientific Pierce ABC Staining Kits include reagents for the avidin-biotin complex (ABC) technique, a highly sensitive method for immunohistochemical detection with biotinylated secondary antibodies.

Pierce ABC Staining Kits are highly sensitive, produce very low background staining and have rapid avidin-biotin interactions. Standard Kits contain only the two essential reagents (avidin and biotinylated HRP) can be used with nearly any species of biotinylated secondary antibody. The Ultra-Sensitive ABC Peroxidase Staining Kits are approximately five times more sensitive than the regular-senstivity kit, enabling more dilute primary antibodies to be used while producing equal staining intensity. Ultra-Sensitive Kits are offered as a Standard Kit and as Complete Kits, which contain biotinylated secondary antibodies and appropriate block serum for use with mouse or rabbit antibodies, respectively.

Related Products
Ultra-Sensitive ABC Peroxidase Standard Staining Kit
Ultra-Sensitive ABC Peroxidase Mouse IgG Staining Kit
Ultra-Sensitive ABC Peroxidase Rabbit IgG Staining Kit

Histostain-Plus IHC Kit, rabbit

Full Product Description
Histostain-Plus kits use 2nd generation LAB-SA technology and are ideal for general immunohistochemical applications. Histostain-Plus kits offer superior sensitivity without compromising background. They are designed to detect mouse, rabbit, rat, or guinea pig primary antibodies that are bound to human tissue or cell antigens. Histostain-Plus kits are excellent for frozen and formalin-fixed, paraffin-embedded tissue sections, cell smears, etc. These kits are very easy to use: all components are liquid (except Fast-Red) and come in dropper bottles. No reconstitution, no pipetting, no measuring is necessary, and the enzyme is conjugated to streptavidin to eliminate the preincubation complexing step. DAB chromogen yields a brown stain, AEC yields a deep red stain, and Fast-Red yields a bright red stain.

Reactivity: Rabbit

Applications: Immunohistochemistry (IHC)

BacLight™ Red Bacterial Stain (Invitrogen™)

The BacLight Green (Cat. no. B-35000) and BacLight Red (Cat. no. B-35001) bacterial stains are fluorescent labeling reagents for detecting and monitoring bacteria. These two dyes are not nucleic acid stains. Bacteria stained with the BacLight Green and BacLight Red bacterial stains exhibit bright green and red fluorescence (absorption/emission ~480/516 and ~581/644 nm, respectively), and can be resolved using the appropriate flow cytometric channels or fluorescence microscopy filters. The BacLight bacterial stains are compatible with formaldehyde or alcohol fixation methods.

View additional information about all microbiological analysis products.

Click-iT™ TUNEL Colorimetric IHC Detection Kit (Invitrogen™)

The Click-iT™ TUNEL Colorimetric IHC Detection Kit is used to identify apoptotic cells in tissue and cultured cell samples through the use of a small, highly specific labeling moiety and streptavidin-peroxidase conjugation. After incorporation of the labeling moiety into sites of DNA fragmentation, detection is achieved through a catalyzed "click" reaction that adds a biotin group at these sites. The subsequent addition of a streptavidin-peroxidase and peroxidase substrate results in a dark brown signal that can be detected with light microscopy and stored for future analysis.

Find more tools for image-based detection of apoptotic cells >

• Optimized for the detection of apoptotic cells in either tissue or cell samples
• Improved colorimetric TUNEL assay—better label incorporation due to small reactive moiety
• Increased sensitivity—specific label incorporation results in lower background and brighter signal
• Content-rich results—cell morphology, cellular environment, and apoptotic signal are clearly visible
• Flexibility—the assay can be configured for 50 independent TUNEL apoptosis tests

The later stages of apoptosis are characterized by changes in nuclear morphology, chromatin condensation, nuclear envelope degradation, and DNA fragmentation. Terminal deoxynucleotidyl transferase-dUTP nick end labeling (TUNEL) assays are based on the incorporation of modified dUTPs by terminal deoxynucleotidyl transferase (TdT) at the 3’-OH ends of fragmented DNA. Colorimetric TUNEL assays utilize dUTPs conjugated with a biotin moiety, followed by the addition of a streptavidin-peroxidase conjugate and peroxidase substrate, resulting in a dark brown apoptotic signal. However, colorimetric TUNEL assays are prone to high background, which reduces the sensitivity and specificity of the signal.

The Click-iT TUNEL Colorimetric IHC Detection Kit was developed to address these issues by utilizing a dUTP modified with an alkyne group (a small bio-orthogonal functional group) that enables the nucleotide to be more readily incorporated by TdT. After incorporation, a highly specific click reaction covalently links biotin azide and the alkyne group. Streptavidin-peroxidase (horseradish peroxidase) followed by peroxidase substrate (DAB) are added, allowing colorimetric detection of apoptotic cells. The high degree of labeling specificity inherent in the click technology results in low background and improved detection of apoptotic cells.

The Click-iT TUNEL Colorimetric IHC Detection Kit has been optimized and contains all of the reagents needed for detection of apoptotic cells from either tissue or cell samples. The reagents supplied in this kit can be used to test 50 samples and configured to test from one to 50 samples at a time.

BSEP Vesicular Transport Assay Reagent Set (Gibco™)

The BSEP Vesicular Transport Assay Reagent Set is a ready-to-use kit containing all reagents needed for vesicular transport assay except for the vesicles themselves. The reagent set can be used for vesicular transport assay using radioisotope-labeled or non-labeled compound. This kit has enough material to perform 100 vesicular transport assays.

Use The BSEP Vesicular Transport Assay Reagent Set to:

• Investigate the transporter interactions of your drug candidates
• Assess potential for transporter-mediated drug-drug interactions
• Obtain high quality results with a large signal to noise ratios

Concept Behind ABC Transporter Vesicles
ABC transporter vesicles are easy-to-use, efficient reagents for early assessment of a drug candidate’s substrate and drug interaction potential. While ABC transporters typically mediate the export of substrates out of cells, transporters expressed on these inside-out vesicles import substrates into the vesicles. It is therefore possible to quantitatively evaluate transport activity for your compound by determining the amount incorporated into the vesicles.

Clear and Reliable Results
Prepared from Sf9 cells which have been engineered to over-express specific ABC transporters, these "inside-out" vesicles provide high levels of transporter activity with low background, giving you a clear signal if your compound is a substrate or inhibitor of a specific efflux transporter.

Kit Compatibility
Our BSEP Vesicular Transport Assay Reagent Set is designed for use with BSEP Vesicles. The 100 vesicular transport assays that can be performed with this kit will require two BSEP Vesicle products

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