You searched for: Assays
An assay is an investigative procedure in laboratory medicine, pharmacology, environmental biology, and molecular biology for qualitatively assessing or quantitatively measuring the presence or functional activity of the analyte, or the entity being targeted by the assay. Generally, assays involve biological materials or phenomena which tend to be intrinsically more complex in composition or in behavior than what can be handled by traditional chemical analysis and titration.
Bicinchoninic acid (BCA) protein assay
Supplier: G-Biosciences
The Bicinchoninic Acid (BCA) Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions.
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Cell viability assay kits
Supplier: Biotium
MTT, XTT, and resazurin are reduced by mitochondrial metabolic activity to yield coloured or fluorescent products, and thus are useful for and assaying cell viability and quantitating cell number. MTT and XTT are reduced to coloured formazin salts that can be measured by absorbance. MTT generates an insoluble formazin salt, requiring cell lysis before the absorbance can be measured, while XTT does not require cell lysis for measurement. Resazurin is a non-fluorescent blue dye that is reduced to the pink fluorescent compound resorufin, which can be measured by fluorescence or absorbance.
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VWR®, Bradford protein assay, proteomics grade
Supplier: VWR Chemicals
The Bradford protein assay is the preferred colorimetric assay for quantifying total protein concentration. Based upon complex formation between basic and aromatic amino acid residues with Coomassie® Brilliant Blue G-250 dye, the Bradford method is easier, faster, and more sensitive than the Lowry method.
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APO-BRDU™ kit, TUNEL Assay
Supplier: ENZO LIFE SCIENCES
Cellular assay, APO-BRDU™ kit
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p53 transcription factor assay kit
Supplier: Cayman Chemical
96-Well assay for measurement of p53.
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Cellular senescence activity assay
Supplier: ENZO LIFE SCIENCES
Highly reproducible SA-β-gal activity kit
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PPARα transcription factor assay kit
Supplier: Cayman Chemical
A 96-well assay for measurement of PPARα DNA binding activity.
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Protein carbonyl colorimetric assay kit
Supplier: Cayman Chemical
The Protein Carbonyl Colorimetric Assay Kit is for the measurement of oxidised proteins. Protein samples are derivatised by making use of the reaction between 2,4-dinitrophenylhydrazine and protein carbonyls.
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ER-ID™ green assay kit
Supplier: ENZO LIFE SCIENCES
The ER-ID® Green assay kit is specifically designed for use with RFP- or OFP-expressing cell lines, as well as cells expressing blue or cyan fluorescent proteins (BFPs, CFPs). Additionally, the kit is suitable for use with live or post-fixed cells in conjunction with probes, such as labeled antibodies, or other fluorescent conjugates displaying similar spectral properties as Texas Red, or coumarin. A nuclear counterstain is provided to highlight this organelle as well.
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Neutrophil/Monocyte Respiratory Burst Assay Kit
Supplier: Cayman Chemical
Neutrophil/Monocyte Respiratory Burst Assay Kit provides PMA, dihydrorhodamine 123, and additional reagents necessary for inducing and quantifying a respiratory burst response in neutrophils and monocytes by flow cytometry. The assay can be performed on whole blood or on cells in various types of cell culture media. Because the assay reagents are not species-specific, this assay can be used in any species or cell type capable of producing a NADPH oxidase-dependent respiratory burst response.
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NF-κB (p65) transcription factor assay kit
Supplier: Cayman Chemical
NF-κB (p65) Transcription Factor Assay Kit is a 96-well assay for measurement of NF-κB (p65).
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Micro Bicinchoninic Acid (BCA) protein assay
Supplier: G-Biosciences
The Micro Bicinchoninic Acid Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions. This modification of the Bicinchoninic Acid (BCA) Protein Assay is suitable for dilute protein samples (0,5 to 20 µg/ml).
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PPARδ transcription factor assay kit
Supplier: Cayman Chemical
A 96-well assay for measurement of PPARδ DNA binding activity.
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Proteasome 20S Assay Kit
Supplier: ENZO LIFE SCIENCES
A QuantiZyme™ Assay System. Fluorogenic, non-radioactive assay designed to measure chymotrypsin-like protease activity of purified 20S proteasome. This 96-well assay is useful for screening inhibitors and modulators of the 20S proteasome.
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TUNEL assay kits
Supplier: Biotium
TUNEL (terminal deoxynucleotidyl transferase (TdT) mediated dUTP nick-end labeling) is highly selective for the detection of apoptotic cells, but not necrotic cells or cells with DNA strand breaks resulting from irradiation or drug treatment. In this assay, TdT enzyme catalyses the addition of labeled dUTP to the 3’ ends of cleaved DNA fragments. Fluorescent dye-conjugated dUTP can be used for direct detection of fragmented DNA by fluorescence microscopy or flow cytometry.
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CREB (Phospho-Ser133) transcription factor assay kit
Supplier: Cayman Chemical
A 96-well assay for measurement of CREB.
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NF[kappa]B transcription factor assay kits
Supplier: Rockland Immunochemicals
These assays are non-radioactive methods for detecting specific transcription factor DNA binding activity in nuclear extracts and whole cell lysates. A specific dsDNA sequence containing the NF[kappa]B response element is immobilized on the bottom of the wells in a 96-well plate. The transcription factor is detected by the addition of a specific primary antibody. A colorimetric readout at 450 nm is obtained through a horseradish peroxidase-conjugated secondary antibody.
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Cellular senescence live cell analysis assay
Supplier: ENZO LIFE SCIENCES
Simple assay to quantify senescence-associated β-galactosidase activity, in live cells, using flow cytometry or fluorescent microscopy.
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OXI-TEK TBARS assay kit
Supplier: ENZO LIFE SCIENCES
The sensitivity of measuring thiobarbituric acid reactive substances (TBARS) has made this assay the method of choice for screening and monitoring lipid peroxidation, which is a major indication of oxidative stress.
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DPPIV/CD26 assay kit for biological samples
Supplier: ENZO LIFE SCIENCES
The DPPIV/CD26 Assay kit for biological samples is a complete assay system designed to measure DPPIV activity in biological fluids such as plasma, serum, urine, and saliva. Uses for the kit include correlation of DPPIV activity with disease states or determination of the efficacy of DPPIV inhibitors administered in vivo.
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ER-ID™ red assay kit (GFP-CERTIFIED®)
Supplier: ENZO LIFE SCIENCES
ER-ID® Red assay kit (GFP-CERTIFIED®) contains an endoplasmic reticulum-selective dye suitable for live cell, or detergent-permeabilized aldehyde-fixed cell staining.
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Calcium assay kits, FLIPR® Calcium 6 and 6-QF assay kits
Supplier: Molecular Devices
The FLIPR® Calcium 6 and 6-QF Assay Kits provide a fast, simple, and reliable fluorescence based assay for detecting changes in intracellular calcium. The Calcium 6 Assay Kit significantly reduces fluorescence background with a one-step protocol. The Calcium 6-QF Assay Kit provides a quench-free option for sensitive targets or multiplexing applications.
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QBT™ Fatty acid uptake assay kit
Supplier: Molecular Devices
QBT™ Fatty Acid Uptake Assay Kit is a homogeneous assay amenable to high-throughput screening. The kits deliver pre-optimized, fluorescence-based formulations to expedite assay development and screening of fatty acid transporters.
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Calcium assay kits, FLIPR® Calcium 4 assay kit
Supplier: Molecular Devices
The FLIPR® Calcium 4 Assay Kit provides a fast, simple and reliable fluorescence-based assay for detecting changes in intracellular calcium.
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GFP-CERTIFIED® FLUOFORTE® Calcium assay kit
Supplier: ENZO LIFE SCIENCES
The GFP-Certified™ FluoForte™ Calcium Assay kit provides a homogeneous fluorescence-based assay for detecting intracellular calcium mobilization across a broad spectrum of biological targets.
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LDH Cytotoxicity Assay Kit
Supplier: Cayman Chemical
For measurement of LDH activity as an indicator of cell death.
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ApoSENSOR™ ADP/ATP ratio assay kit
Supplier: ENZO LIFE SCIENCES
The assay is designed to detect ADP/ATP ratio. The changes in ADP/ATP ratios have been used to conveniently differentiate apoptosis from necrosis.
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Fluor-de-Lys® SIRT1 fluorometric drug discovery assay kit
Supplier: ENZO LIFE SCIENCES
A Fluor-de-Lys® fluorescent assay system. The SIRT1 Fluorescent Activity Assay/Drug Discovery Kit is a complete assay system designed to measure the lysyl deacetylase activity of the recombinant human SIRT1 included in the kit.
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ProteoStat™ PDI assay kit
Supplier: ENZO LIFE SCIENCES
The PROTEOSTAT® PDI assay kit provides a simple, homogenous assay for screening modulators of PDI enzymatic activity. This is accomplished by monitoring PDI-catalyzed reduction of insulin in the presence of Dithiothreitol (DTT), resulting in the formation of insulin aggregates which then bind avidly to the red-emitting fluorogenic PROTEOSTAT® PDI detection dye.
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Fluor-de-Lys® SIRT2 fluorometric drug discovery assay kit
Supplier: ENZO LIFE SCIENCES
A Fluor-de-Lys® fluorescent assay system. The SIRT2 Fluorescent Activity Assay/Drug Discovery Kit is a complete assay system designed to measure the lysyl deacetylase activity of the recombinant human SIRT2 included in the kit. The kit is ideal for chemical library screening for candidate inhibitors or activators or kinetic assay of the enzyme under varying conditions.