Promega Corp. Products & Reviews

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…

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…

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…

Efficient Lysis of E. coli Cultures; No Centrifugation or Mechanical Disruption Needed FastBreak™ Cell Lysis Reagent is provided as a 10X concentrate and contains a proprietary nonionic detergent to facilitate lysis. Add the reagent directly to E. coli cultures. Following a brief incubation, the cells are disrupted, and the protein  released. Recombinant proteins can be directly screened in the cell extract or purified by t…

Reliable Transfection for Common Cell Lines

It can be challenging to purify sufficient high-quality protein from mammalian cells. Boost protein recovery 30-60% with an optimized covalent protein tag, called HaloTag®. This complete kit offers strong improvements in recovery, purity, cost and protein functionality over historical FLAG® and poly-His tag purification strategies.

The ONE-Glo™ + Tox Assay combines luciferase assay chemistry with a cell viability marker to better understand reporter gene expression in the context of cell health. The assay uses a two-step, addition-only process to make these measurements in a single well of a plate, negating the need to run parallel assays. The first part of the assay is a nonlytic fluorescence assay (CellTiter-Fluor™ Cell Viability Assay) that measure…

Brighter signal for earlier quantification of low and high copy RNA targets in a convenient 1-Step RT-qPCR format GoTaq® 1-Step RT-qPCR System is a reagent system that gives a brighter signal for earlier quantification of low and high copy RNA targets, using a one-step reverse transcription-quantitative PCR (RT-qPCR) protocol in a single tube format. The system incorporates BRYT Green® Fluorescent Dye, a novel dye…

The PowerPlex® Y23 System is a 23-loci, 5-color Y-STR multiplex designed for genotyping forensic casework samples, database samples and paternity samples.   The kit contains: all 12 loci in the current PowerPlex® Y System, the additional 5 loci found in AmpFlSTR® Y-filer®, plus 6 new loci.   PowerPlex® Y23 System Benefits: Reveal more Y-STR loci in excess female DNA Cut your amplification time roughly in ha…

The DNA IQ™ System is a DNA isolation system designed specifically for forensic and paternity laboratories. This system employs novel paramagnetic particles to isolate clean DNA for use with short tandem repeat (STR) analysis. The DNA IQ™ System can be used to extract DNA from a variety of sample types, including stains and liquid samples. Protocols for database samples and casework samples are available. The unique DNA IQ™…

DNA Polymerase I catalyzes the template-directed polymerization of nucleotides into duplex DNA in a 5´→3´ direction. DNA Polymerase I possesses a 3´→5´ exonuclease activity or "proofreading" function, which lowers the error rate during DNA replication, and also contains a 5´→3´ exonuclease activity, which enables the enzyme to replace nucleotides in the growing strand of DNA by nick translation (1). The enzyme, purified from r…

The GoTaq® Probe qPCR Master Mix is optimized for quantitative PCR assays in the hydrolysis probe detection format.   It is provided as a ready-to-use, stabilized 2X formulation that includes all components for qPCR (except template, primers and probe). This master mix does not contain a reference dye; however, a separate tube of carboxy-X-rhodamine (CXR) reference dye is included with this system, allowing users to add…

The GoTaq® Probe 2-Step RT-qPCR System is optimized for quantitative PCR assays in the hydrolysis probe detection format. The system protocol facilitates detection and relative quantification of RNA expression levels via a two-step RT-qPCR method using integrated components: • GoScript™ Reverse Transcription System • GoTaq® Probe qPCR Master Mix The GoScript™ Reverse Transcription System includes an optimized reaction b…

Magne™ Protein G and Magne™ Protein A Beads are magnetic affinity beads with high specificity and high capacity for purification of immunoglobulins from cell culture media, ascites and serum samples.   These paramagnetic beads are composed of iron encapsulated in macroporous cellulose with low nonspecific binding. The magnetic beads use a novel attachment chemistry to immobilize recombinant Protein G or Protein A protein…

The MethylEdge™ System provides an efficient method to rapidly perform bisulfite conversion with minimal DNA fragmentation, giving you more intact, converted DNA for downstream applications.   Start with as little as 100pg of input DNA for those precious, limited samples. Use the MethylEdge™ System with other DNA Methylation Workflow reagents to perform sensitive DNA methylation analysis on many sample types. The rapi…

The GenePrint® 10 System is a complete system with all reagents required for successful identification and authentication of human cell lines and detection of cell line contaminants.   The GenePrint® 10 System allows co-amplification and three-color detection of nine human loci, including the ASN-0002 loci (TH01, TPOX, vWA, Amelogenin, CSF1PO, D16S539, D7S820, D13S317, and D5S818) as well as D21S11. These loci collective…

If there is DNA to detect, the Plexor® HY System will show it. Total human DNA. Total male DNA. The power to see it all in a single assay.   The Plexor® HY System is a real-time PCR assay to determine the concentration of total human DNA and male human DNA simultaneously in one reaction. The kit contains an internal PCR control (IPC) to test for false-negative results that may occur in the presence of PCR inhibitors…

The GoTaq® G2 Hot Start Polymerase and Master Mixes simplify your reaction preparation, bringing you the convenience of room-temperature setup and the specificity of a hot start polymerase.   Ready-to-use Master Mix simplifies reaction setup and allows direct-to-gel loading. The optimized formulation provides amplification of a variety of targets, while eliminating non-specific products, resulting in higher yields and gr…

The AttoPhos® AP Fluorescent Substrate System provides a highly sensitive fluorescent alkaline phosphatase substrate.   The system includes AttoPhos® Substrate, AttoPhos® Buffer and Calibration Solution. AttoPhos® Substrate (2′-[2-benzothiazoyl]-6′-hydroxybenzothiazole phosphate [BBTP]) is cleaved by alkaline phosphatase to produce inorganic phosphate (Pi) and the alcohol, 2′-[2-benzothiazoyl]-6´-hydroxybenzothiazole (BB…

The MagneHis™ Protein Purification System provides a simple, rapid and reliable method for the purification of polyhistidine- or HQ-tagged, expressed proteins.   Paramagnetic precharged nickel particles (MagneHis™ Ni-Particles) are used to isolate polyhistidine- or HQ-tagged protein directly from a crude cell lysate using either a manual (requires use of a magnetic stand) or automated procedure. Using a tube format,…

The TnT® Quick Systems are convenient single-tube, coupled transcription/translation reactions for eukaryotic cell-free protein expression.   These cell-free expression systems combine the RNA Polymerase, nucleotides, salts, amino acids and Recombinant RNasin® Ribonuclease Inhibitor with the reticulocyte lysate solution to form a single TnT® Quick Master Mix. The TnT® Quick Coupled Transcription/Translation System is ava…

The Kazusa ORFeome Project was initiated to create a collection of human and mouse ORFs to enable the larger research community with a readily accessible, highly validated ORFeome. Kazusa DNA Research Institute (KDRI) is an academic Japanese research institute dedicated to genome-scale studies and the function of individual genes. KDRI is an active member of the global ORFeome Collaboration, and are experts in HUGE (Human Uni…

The Single Step (KRX) Competent Cells are designed for efficient transformation and tightly controlled protein expression.   These cells consolidate the best attributes of these two steps into one strain to evaluate protein expression in E. coli. Transformation efficiencies are greater than 108 cfu/μg, similar to other highly competent cells. The single step cells are available in single transformation size (50μl). KRX a…

For standard cloning experiments competent cells are available in two formats: high efficiency at greater than 108cfu/μg for cloning (JM109, HB101), and subcloning efficiency at greater than 107cfu/μg (HB101). JM109 cells have the additional feature of blue/white screening for recombinants. For protein expression, JM109(DE3), BL21(DE3) or KRX competent cells can be used. The Single Step (KRX) Competent Cells are designed fo…

Diamond™ Nucleic Acid Dye is a safe, sensitive fluorescent dye that binds to single-stranded DNA, double-stranded DNA and RNA, and can be used to stain and visualize nucleic acids in gels.   Diamond™ Nucleic Acid Dye is compatible with denaturing and native agarose and polyacrylamide gels and can be imaged with any standard imaging system. Significantly less mutagenic than traditional ethidium bromide, as proven by Ames…