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19530 results for Assays

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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 behaviour than what can be handled by traditional chemical analysis and titration.

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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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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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Caspase-3 cell assay kit

Supplier: Enzo Life Sciences

This kit is a complete assay system for measuring caspase-3 and caspase-3-like activity (DEVDase) in cellular extracts.

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OXI-TEK TBARS assay kit

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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Protein assay kits, RED 660™

Protein assay kits, RED 660™

Supplier: G-Biosciences

RED 660™ Protein Assay is a single reagent colorimetric assay that outperforms many commercial colorimetric assays, including Bradford and improved Coomassie/Bradford assays. It offers greater linearity, colour stability, and compatibility with detergents, reducing agents and other interfering agents compared to the Coomassie assays. The single, ready to use reagent allows for rapid analysis of total protein concentration and generates highly reproducible results.

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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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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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Calcium assay kit

Supplier: Cayman Chemical

For the determination of total calcium concentration in a variety of biological samples, as well as tissue homogenates and cell lysates.

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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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Apoptosis and necrosis assay kit, NucView™488 RedDot™2

Supplier: Biotium

This NucView™488 and RedDot™2 Apoptosis and Necrosis Assay Kit contains NucView™488 caspase-3 substrate for detection of caspase-3/7 activity. The far-red dead-cell stain RedDot™2 is included for staining necrotic and late apoptotic cells that have compromised plasma membrane integrity. This kit provides a convenient tool for profiling apoptotic and necrotic cell populations by fluorescence microscopy or flow cytometry.

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SREBP-1 transcription factor assay kit

SREBP-1 transcription factor assay kit

Supplier: Cayman Chemical

A 96-well assay for measurement of SREBP-1.

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Calcineurin cellular activity assay kit

Calcineurin cellular activity assay kit

Supplier: Enzo Life Sciences

A complete colorimetric assay kit for measuring cellular calcineurin (PP2B) phosphatase activity. It employs a convenient 96-well plate format with all reagents necessary for measuring calcineurin (PP2B) phosphatase activity in tissue/cellular extracts PLUS human recombinant calcineurin is included as a positive control.

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Calcein-AM cell viability assay kits

Calcein-AM cell viability assay kits

Supplier: Biotium

Calcein-AM is a non-fluorescent, membrane permeable compound. Esterase activity in the cytoplasm of viable cells converts calcein-AM to the green fluorescent, membrane impermeant compound calcein, which is retained in viable cells with intact plasma membranes. The Viability/Cytotoxicity Assay kit for Animal Live & Dead Cells pairs calcein-AM with the vital dye ethidium homodimer III for quantitation of live and dead cells.

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Fluorescent protease assay, Fluoro™

Fluorescent protease assay, Fluoro™

Supplier: G-Biosciences

The Fluoro™ Protease Assay Kit is designed for the quantitative determination of proteases present in a protein sample. The assay uses fluorescein isothiocyanate (FITC)-labelled casein as a general protease substrate. The fluorescein label on the FITC-casein is highly quenched. When the proteases present in the sample of interest digest the FITC-casein substrate into smaller peptides, the quenching of the fluorescence label is relieved and the fluorescence of the substrate is increased. The fluorescence of the FITC-labeled peptide is measured with excitation at 485 nm and emission at 530 nm to determine protease activity. The kit detects picogram level of proteases present in the sample.

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Protease assay kit

Protease assay kit

Supplier: G-Biosciences

This Protease Assay Kit is designed for the quantitative determination of proteases present in protein sample, using a dye-labelled protein substrate. The proteases present in the sample of interest will digest the protein substrate and release dye labelled peptides. The absorbance of the dye-labelled peptide is measured at 570 nm for determination of protease activity.

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HIF-1α transcription factor assay Kit

HIF-1α transcription factor assay Kit

Supplier: Cayman Chemical

HIF-1α Transcription Factor Assay Kit is a sensitive, non radioactive method for detecting HIF-1α from whole cell lysates.

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Protein quantitation assay kits, CB™ Protein assay

Protein quantitation assay kits, CB™ Protein assay

Supplier: G-Biosciences

CB™ Protein Assay, a Coomassie dye based protein assay based on the Bradford Protein Assay, is suitable for the simple and rapid estimation of protein concentration. The binding of protein to the dye results in a colour change from brown to blue. The change in colour density is proportional to protein concentration. Protein estimation can be performed using as little as 0,5 µg protein.

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Steady-Luc™ Firefly HTS assay kit

Steady-Luc™ Firefly HTS assay kit

Supplier: Biotium

Firefly luciferase is widely used as a transcriptional reporter gene for research and drug screening. The Steady-Luc™ HTS kit can be used with luminescence plate readers without sample injection systems or for high-throughput screening.

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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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Calcium assay kits, FLIPR® Calcium 6 and 6-QF assay kits

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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Millicell® µ-Migration Assay Kit

Millicell® µ-Migration Assay Kit

Supplier: Merck

This Kit overcomes the limitations of traditional multiwell migration assays. Its microfluidic, low-volume technology promotes a stable, diffusion-generated concentration gradient that is consistently linear and lasts for more than 48 hours.

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FLUOR DE LYS® SIRT3 fluorometric drug discovery assay kit

Supplier: Enzo Life Sciences

A Fluor-de-Lys® fluorescent assay system. The SIRT3 Fluorescent Activity Assay/Drug Discovery Kit is a complete assay system designed to measure the lysyl deacetylase activity of the recombinant human SIRT3 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.

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Glucose Uptake Cell-Based Assay Kit

Glucose Uptake Cell-Based Assay Kit

Supplier: Cayman Chemical

A cell-based assay for studying modulators of cellular glucose uptake.

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Protein quantitation assay kits, Non-Interfering™ (NI™) Protein Assay

Protein quantitation assay kits, Non-Interfering™ (NI™) Protein Assay

Supplier: G-Biosciences

A highly sensitive colorimetric protein assay that overcomes interference of common laboratory agents present in protein solutions and shows minimal protein-to-protein variation. The assay is unaffected by the presence of common laboratory agents such as reducing agents, chelating agents, detergents, amines, sugars, chaotropes, salts, drugs, antibiotics, cobalt, and others.

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PROTEOSTAT® protein aggregation assay

PROTEOSTAT® protein aggregation assay

Supplier: Enzo Life Sciences

PROTEOSTAT® Protein aggregation assay provides a simple, homogenous assay format for monitoring peptide and protein aggregation in solution. This is useful for defining optimal storage formulations for proteins, for screening of compounds that promote or inhibit protein aggregation and potentially for the sensitive measurement of molecular chaperone activity. The assay can be employed to streamline protein processing and formulation optimization procedures.

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LDH Cytotoxicity WST Assay

Supplier: Enzo Life Sciences

Colorimetric kit for the determination of cytotoxicity through the measurement of lactate dehydrogenase activity.

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Cytochrome C releasing apoptosis assay kit

Supplier: Enzo Life Sciences

For the detection of Cytochrome c translocation from mitochondria into cytosol during apoptosis.

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FLUOR DE LYS®-Green HDAC2 fluorometric drug discovery assay kit

Supplier: Enzo Life Sciences

The HDAC2 Fluorescent Activity Assay/Drug Discovery Kit is a complete assay system designed to measure the lysyl deacetylase activity of the recombinant human HDAC2 included in the kit. The kit is ideal for chemical library screening for candidate inhibitors or kinetic assay of the enzyme under varying conditions.

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FLUOR DE LYS® HDAC1 fluorometric drug discovery assay kit

Supplier: Enzo Life Sciences

The HDAC1 Fluorescent Activity Assay/Drug Discovery Kit is a complete assay system designed to measure the lysyl deacetylase activity of the recombinant human HDAC1 included in the kit.

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Phosphatase assay kit, BIOMOL® Green

Phosphatase assay kit, BIOMOL® Green

Supplier: Enzo Life Sciences

BIOMOL® Green provides a simple and convenient method for colorimetric phosphate quantitation. It is suitable for applications include assays for phospholipid phosphatases, tyrosyl-tRNA synthetase (coupled with pyrophosphatase) and a viral RNA triphosphatase. It is most widely applied to protein phosphatase assays.

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