Immunoassays Products & Reviews

The TRAPEZE® ELISA Kit provides the reagents necessary for performing the TRAP assay followed by ELISA detection of telomerase activity in cell/tissue samples.

The Amplifluor™ UniPrimer™-fluorescein is a hairpin primer labeled with a fluorescent energy transfer pair (fluorescein and non-fluorescent quencher) and a 3' single-stranded oligonucleotide tail and is provided at a concentration of 5.0 μM (25.0 mL).

GST fusion-protein, corresponding to the p21-binding domain (PBD, residues 67-150) of human PAK-1 provided bound to glutathione agarose. Specifically binds to and precipitates Rac-GTP and cdc42-GTP from cell lysates.

GST-tagged fusion protein, corresponding to residues 7-89 of mouse Rhotekin Rho Binding Domain, expressed in E.coli and bound to glutathione-agarose. Specifically binds to and precipitates GTP-Rho, but not GDP-Rho from cell lysates.

For use to immunoprecipitate transcriptionally active chromatin from mammalian cells using anti-Acetyl-Histone H4, ChIP grade rabbit antiserum.

For use to immunoprecipitate transcriptionally active chromatin from mammalian cells using anti-acetyl-Histone H3

A GST-tagged fusion protein, corresponding to residues 7-89 of mouse Rhotekin Rho Binding Domain, expressed in E. coli. Provided bound to glutathione-agarose. Purity 90%.

Anti-cdc42 is a mouse monoclonal IgG1 that recognizes cdc42 from human, mouse, rat and dog

This kit contains nonradioactive components for radiolabeling and purifying histone H4 peptide with [3H]-acetyl CoA. The radiolabeled peptide is a suitable substrate for assay of HDAC activity. HeLa nuclear extract, which is rich in histone deacetylase activity, is included as a positive control. The HDAC inhibitor sodium butyrate is provided to demonstrate specificity of the deacetylase activity.

Accessory reagent kit for the analysis of histone methyltransferase activity.

This assay is a simple two-step procedure performed in a microtiter plate. In the first step samples are incubated with the HDAC assay substrate, allowing deacetylation of the fluorometric substrate. Next, Activator Solution releases a fluorophore from the deacetylated substrate or standard.

Chromatin Immunoprecipitation (ChIP) is an important technique allowing the researcher to analyze in vivo interactions of proteins with genomic DNA. Any chromatin-associated or DNA binding protein can be analyzed with this technique, provided a good antibody to the protein exists. One can measure different proteins localized to a specific region of the genome, or the genome wide distribution of a specific protein. Another powe…

The 384 well format kit is a newer version of the tried and true non-radiographic HDAC assay. As in the previous kit, samples are first incubated with the HDAC Assay substrate, allowing deacetylation of the fluorometric substrate. After incubation, the activator solution is added, and releases a fluorophore from the deacetylated substrate or standard. The sample is then put into a microplate reader and fluorescence (i.e free/c…

This assay is a simple two-step procedure performed in a microtiter plate. In the first step, samples are incubated with the HDAC assay substrate, allowing deacetylation of the substrate. Next, the Activator Solution releases p-nitroanilide from the deacetylated substrate or standard.

The EZ-Zyme™ Chromatin Prep kit allows ChIP analysis at nucleosome resolution by performing complete or partial digestions with a proprietary enzymatic cocktail to obtain chromatin fragments of on average one to a few nucleosomes in length. Compared to sonication, this procedure not only allows mapping the protein-DNA association at a higher resolution, but also renders the subsequent immunoprecipitation more efficient due to…

The Rac1/Cdc42 Activation Assay provides an effective method for detecting Rac and Cdc42 activity in cell lysates. This assay uses the downstream effector of Rac/Cdc42, p21-activated protein kinase (PAK1), to isolated the active GTP-bound form of Rac/Cdc42 from the sample. The p21 binding domain (PBD) of PAK1 is expressed as a GST-fusion protein and coupled to agarose beads. After precipitation, an immunoblot is performed and…

The ChIPAb+ CREB, antibody/primer set includes the CREB, antibody, a negative control antibody (purified rabbit IgG), and qPCR primers which amplify a 64 bp region flanking the CRE of the human cFos gene. The CREB and negative control cultured supernatant are supplied in a scalable "per ChIP" reaction size and can be used to functionally validate the precipitation of CREB associated chromatin.

Every lot of the ChIPAb+ line of antibodies is individually validated for chromatin precipitation, in order to guarantee successful ChIP assays every time. Each antibody includes a control primer set for performance confirmation. Sp1 antibody and the negative control antibody (rabbit normal IgG) can be used to demonstrate that the Sp1 antibody is functionally validated in the precipitation of Sp1 associated chromatin. The qPCR…

Every lot of the ChIPAb+ line of antibodies is individually validated for chromatin precipitation, in order to guarantee successful ChIP assays every time. Each antibody includes a control primer set for performance confirmation. LEF1 antibody and the negative control antibody (mouse normal IgG) can be used to demonstrate that the LEF1 antibody is functionally validated in the precipitation of LEF1 associated chromatin.The qPC…

The ChIPAb+ HDAC1 set includes the HDAC1 antibody, the negative control antibody supernatant (mouse IgG), and qPCR primers flanking an Sp1 binding site in human p21 (WAF1/CIP1/CDKN1A) promoter, amplifying a 105 base pair PCR product. The HDAC1 and negative control antibodies are supplied in a scalable "per ChIP" reaction size and can be used to functionally validate the precipitation of HDAC1 associated chromatin.

The ChIPAb+ Trimethyl-Histone H3 (Lys4) set includes the anti-trimethyl-histone H3 (Lys4) antibody, a negative control antibody (normal rabbit serum), and qPCR primers which amplify a 166 base pair region within the promoter of the human GAPDH gene. The trimethyl-histone H3 (Lys4) and negative control antibodies are supplied in a scalable "per ChIP" reaction size and can be used to functionally validate the precipitation of tr…

The ChIPAb+ Acetyl-Histone H3 set contains purified rabbit polyclonal antibody and the normal rabbit IgG antibody, which can be used to demonstrate that the acetyl-histone H3 antibody is capable of precipitating acetyl-histone H3 associated chromatin. The qPCR primers included flank the human GAPDH promoter and produce a 166 base pair PCR product.

The ChIPAb+ RNA Pol II set includes the RNA Pol II antibody, the negative control antibody (mouse IgG), and qPCR primers flanking the human GAPDH promoter, yielding a 166 bp product. The RNA Pol II and negative control antibodies are supplied in a scalable "per ChIP" reaction size and can be used to functionally validate the precipitation of RNA Pol II associated chromatin.

Each set also includes a negative control antibody to ensure specificity of the ChIP reaction. The ChIPAb+ Trimethyl-Histone H3 (Lys27) set includes the Anti-Trimethyl-Histone H3 (Lys27) antibody, a negative control antibody (purified rabbit IgG), and qPCR primers which amplify a 170 bp region within the promoter of the murine p16 promoter. The Trimethyl-Histone H3 (Lys27) and negative control antibodies are supplied in a scal…

The ChIPAb+ Trimethyl-Histone H3 (Lys9) set includes the Anti-trimethyl-Histone H3 (Lys9) antibody, a negative control antibody (purified rabbit IgG), and qPCR primers which amplify a 170 bp region within the promoter of the murine p16 gene. The trimethyl-histone H3 (Lys9) and negative control antibodies are supplied in a scalable "per ChIP" reaction size and can be used to functionally validate the precipitation of trimethyl-…