Promega Corp. Products & Reviews

The Dual-Luciferase® Reporter (DLR™) Assay System(a–f) provides an efficient means of performing two reporter assays. In the DLR™ Assay, the activities of firefly (Photinus pyralis) and Renilla (Renilla reniformis or sea pansy) luciferases are measured sequentially from a single sample. The firefly luciferase reporter is measured first by adding Luciferase Assay Reagent II (LAR II) to generate a luminescent signal lasting at l…

High-throughput quantitation of firefly (Photinus pyralis) luciferase expression in mammalian cells is commonly performed by batch processing of 96- and 384-well plates. Steady-Glo® Luciferase Assay System(a,b,c) is designed for this purpose by providing long-lived luminescence when added to cultured cells. The homogeneous assay provides signal half-lives of over 5 hours in commonly used cell culture media without prior sample…

Experience improved PCR performance with GoTaq® DNA Polymerase products. GoTaq® DNA Polymerase is a proprietary formulation of Taq DNA polymerase that gives robust amplification equal to and in some cases superior to that of standard Taq DNA polymerase. GoTaq® DNA Polymerase comes in a variety of formulations designed to give you maximum flexibility, control and convenience.

The CellTiter-Blue® Cell Viability Assay provides a homogeneous, fluorescent method for monitoring cell viability. The assay is based on the ability of living cells to convert a redox dye (resazurin) into a fluorescent end product (resorufin). Nonviable cells rapidly lose metabolic capacity and thus do not generate a fluorescent signal. The homogeneous assay procedure involves adding the single reagent directly to cells cultur…

The PureYield™ Plasmid Midiprep System is designed to isolate transfection-quality plasmid DNA.   The system provides a rapid method for purification of 100–200μg of plasmid DNA from 50ml bacteria culture. Plasmid DNA can be purified in as little as 30 minutes with the vacuum protocol, greatly reducing the time spent on purification compared to silica resin or other membrane-column methods. An alternative protocol allows…

The CellTiter 96® AQueous One Solution Cell Proliferation Assay is a colorimetric method for determining the number of viable cells in proliferation, cytotoxicity or chemosensitivity assays. The CellTiter 96® AQueous One Solution Reagent contains a tetrazolium compound [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt; MTS(a)] and an electron coupling reagent (phenazine ethos…

The Dual-Glo® Luciferase Assay System is a homogeneous reagent system that enables fast and simple quantitation of a stable luminescent signal from two reporter genes in a single sample. This convenient "add-and-read" system generates both firefly and Renilla luciferase luminescence signals from cells that have not been preconditioned or prelysed. With the Dual-Glo® System, internal controls can be established to minimize s…

Use with ADP-Glo™ Assay for bioluminescent detection of kinase activity

ProteaseMax™ Surfactant is a high-quality reagent for use in protein and peptide sample preparation.   ProteaseMax™ Surfactant solubilizes proteins and ensures fast and improved protein digestion with trypsin or chymotrypsin. It is designed to degrade over the course of a digestion reaction, yielding products that are compatible with downstream methods such as mass spectrometry (MS) and liquid chromatography (LC). For…

The pGEM®-T Easy Vector Systems are convienent systems to clone PCR products.   They offer all of the advantages of the pGEM®-T Vector Systems with added convieneice of recognition sites for EcoRI and NotI flankin the insertion site. Thus, several options exist to remove the desired insert DNA with a single restriction digestion. The pGEM(R)-T Easy Vectr System II contains JM109 Competent Cells in addition to all pf the…

The Promega CytoTox 96® Non-Radioactive Cytotoxicity Assay is a colorimetric alternative to radioactive cytotoxicity assays. The CytoTox 96® Assay quantitatively measures lactate dehydrogenase (LDH), a stable cytosolic enzyme that is released upon cell lysis, in much the same way as [51Cr] is released in radioactive assays. Released LDH in culture supernatants is measured with a 30-minute coupled enzymatic assay that result…

HaloLink - Promega Magnetic Beads for Covalent immobilization of HaloTag® fusion proteins.   Features of the Promega HaloLink Magnetic Beads: • Magnetic-Based: Easy and quick immobilization of HaloTag® fusion proteins with minimal loss of sample material. • Covalent Bond: Allows stringent washing of immobilized HaloTag® fusion protein, removing nonspecific proteins and enhancing overall data.  • Multiple Appli…

GoTaq®2-Step RT-qPCR System is a reagent system for quantitative analysis of RNA using a two-step reverse transcription-quantitative PCR (RT-qPCR) method. The first step consists of cDNA synthesis using the GoScript™ Reverse Transcription System. Optimized reagents and ultra-active, GoScript™ Reverse Transcriptase result in high-efficiency, full-length cDNA synthesis from rare and abundant targets with up to 5 µg of RNA inp…

GoTaq® qPCR Master Mix is a new reagent system for use in real-time quantitative PCR (qPCR). The system contains BRYT™ Green, a new proprietary fluorescent DNA binding dye that exhibits greater fluorescence enhancement upon binding to double-stranded DNA than SYBR® Green I. Combined with the GoTaq® Hot Start Polymerase, optimized buffer and proprietary dye, GoTaq® qPCR Master Mix provides robust real-time PCR with increased re…

GoTaq® Hot Start Polymerase contains the high-performance GoTaq® DNA Polymerase bound to a proprietary antibody that blocks polymerase activity. The system is supplied with a tube of 25mM MgCl2, allowing optimization of the magnesium concentration in your reactions. It is also supplied with 5X Green GoTaq® Flexi Buffer and 5X Colorless GoTaq® Flexi Buffer. The buffers contain a compound that increases sample density, so tha…

The GoScript™ Reverse Transcription System includes a reverse transcriptase and a specialized set of reagents for efficient synthesis of first-strand cDNA optimized for quantitative PCR amplification. GoScript™ Reverse Transcriptase uses M-MLV Reverse Transcriptase and state-of-the-art buffer technology to deliver robust, reliable cDNA synthesis of a full range of rare and abundant transcripts, even in the presence of inhibit…

The GSH-Glo™ Glutathione Assay is a luminescence-based assay for the detection and quantification of glutathione (GSH). The assay is based on the conversion of a luciferin derivative into luciferin in the presence of glutathione, catalyzed by glutathione S-transferase (GST). The signal generated in a coupled reaction with firefly luciferase is proportional to the amount of glutathione present in the sample. Luminescence is gen…