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Protein Assays

Accurately quantifying total protein concentration is a key to most experiments and is often necessary for isolation, separation, and analysis of proteins by biochemical methods. When it is necessary to determine the total protein concentration in a sample, one of the first factors to consider is the selection of a protein assay method. These choices are typically based upon the compatibility of the method with the samples to be assayed. Each method has its own advantages and disadvantages.

CB™ Protein Assay, G-Biosciences

CB™ Protein Assay, G-Biosciences

Supplier: G-Biosciences

It is an improved Coomassie Dye based protein assay based on the Bradford Protein Assay

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QuantiChrom™ Protein Assay Kit, BioAssay Systems

QuantiChrom™ Protein Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

For quantitative determination of total protein (Bradford method).

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Pierce™ Compat-Able™ BCA Protein Assay Kit, Thermo Scientific

Pierce™ Compat-Able™ BCA Protein Assay Kit, Thermo Scientific

Supplier: Thermo Scientific

The Thermo Scientific Compat-Able™ BCA Protein Assay Kit eliminates interfering substances from protein assay samples to make them compatible with BCA and Bradford assays.

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Pierce™ Coomassie (Bradford) Protein Assay Kits, Thermo Scientific

Pierce™ Coomassie (Bradford) Protein Assay Kits, Thermo Scientific

Supplier: Thermo Scientific

The Pierce™ Coomassie (Bradford) Protein Assay Kit is a ready-to-use, stable formulation of the traditional Bradford assay reagent to measure (A595 nm) total protein concentration compared to a protein standard.

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Pierce™ 660 nm Protein Assay, Thermo Scientific

Pierce™ 660 nm Protein Assay, Thermo Scientific

Supplier: Thermo Scientific

Ready-to-use, detergent and reducing agent-compatible assay reagent to quickly measure (A660 nm) total protein concentration compared to a protein standard.

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QuantiFluo™ Protein Assay Kit, BioAssay Systems

QuantiFluo™ Protein Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

For quantitative fluorimetric determination of total protein.

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Pierce™ Compat-Able™ Protein Assay Preparation Reagent Kit, Thermo Scientific

Pierce™ Compat-Able™ Protein Assay Preparation Reagent Kit, Thermo Scientific

Supplier: Thermo Scientific

The Compat-Able™ Protein Assay Preparation Reagent Set eliminates interfering substances from protein assay samples to make them compatible with BCA and Bradford assays.

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Protein Carbonyl Colorimetric Assay Kit, Cayman Chemical Company

Protein Carbonyl Colorimetric Assay Kit, Cayman Chemical Company

Supplier: Cayman Chemical Company

Convenient colorimetric assay for measurement of oxidized proteins.

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NI™ (Non-Interfering™) Protein Assay, G-Biosciences

NI™ (Non-Interfering™) Protein Assay, G-Biosciences

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

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Pierce™ BCA® Protein Assay Kits and Reagents, Thermo Scientific

Pierce™ BCA® Protein Assay Kits and Reagents, Thermo Scientific

Supplier: Thermo Scientific

Pierce BCA™ (bicinchoninic acid) reagents provide accurate determination of protein concentration with most sample types encountered in protein research. The Pierce BCA™ Protein Assay can be used to assess yields in whole cell lysates and affinity-column fractions, as well as to monitor protein contamination in industrial applications. Compared to most dye-binding methods, the BCA™ Assay is affected much less by protein compositional differences, providing greater protein-to-protein uniformity.

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Pierce™ Micro BCA™ Protein Assay Kit and Reagents, Thermo Scientific

Pierce™ Micro BCA™ Protein Assay Kit and Reagents, Thermo Scientific

Supplier: Thermo Scientific

The Micro BCA Protein Assay Kit is a specialized version of the popular Pierce BCA Protein Assay for determining the protein concentration of dilute samples.

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BCA Protein Assay Kit, Thermo Scientific

Supplier: Thermo Scientific Chemicals

BCA Protein Assay Kit can be used to measure very dilute protein concentrations in very small sample volumes.

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Total Protein Assay Kit, BioAssay Systems

Total Protein Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

For quantitative determination of total protein

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Pierce™ Compat-Able™ Coomassie Plus Protein Assay Kit, Thermo Scientific

Pierce™ Compat-Able™ Coomassie Plus Protein Assay Kit, Thermo Scientific

Supplier: Thermo Scientific

The Compat-Able™ Coomassie Plus Protein Assay Kit eliminates interfering substances from protein assay samples to make them compatible with BCA and Bradford assays.

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Pierce™ Coomassie Plus™ (Bradford) Protein Assay Kit, Thermo Scientific

Pierce™ Coomassie Plus™ (Bradford) Protein Assay Kit, Thermo Scientific

Supplier: Thermo Scientific

The Pierce™ Coomassie Plus™ Protein Assay is a quick and ready-to-use, reducing agent-compatible, improved Bradford assay to quickly measure (A595 nm) total protein concentration compared to a protein standard.

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Protein dotMETRIC™ Assay, G-Biosciences

Protein dotMETRIC™ Assay, G-Biosciences

Supplier: G-Biosciences

Rapidly mix 1µL protein sample with the supplied dilution buffer and apply 1µL of the solution to the test strip by point-of-contact capillary action

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Protn-Latex™, G-Biosciences

Protn-Latex™, G-Biosciences

Supplier: G-Biosciences

A simple and reliable method for estimation of protein contamination in latex

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Pierce™ Coomassie Plus (Bradford) Protein Assay Reagent, Thermo Scientific

Pierce™ Coomassie Plus (Bradford) Protein Assay Reagent, Thermo Scientific

Supplier: Thermo Scientific

The Bradford protein assay is the preferred colorimetric assay for quantifying total protein concentration

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QuantiChrom™ Biotin Assay Kit, BioAssay Systems

QuantiChrom™ Biotin Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

Quantitative determination of biotin in food, cosmetic, and biotinylated proteins.

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Protease Assay Kit, G-Biosciences

Protease Assay Kit, G-Biosciences

Supplier: G-Biosciences

The Protease Assay Kit is designed for the quantitative determination of proteases present in protein sample, using a dye-labeled protein substrate

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Pierce™ BCA™ Protein Assays, Reducing Agent Compatible, Thermo Scientific

Pierce™ BCA™ Protein Assays, Reducing Agent Compatible, Thermo Scientific

Supplier: Thermo Scientific

This reducing agent-compatible version of Thermo Scientific's Pierce BCA Protein Assay enables one to measure protein concentration in samples that contain thiol-reductants dithiothreitol (DTT) and 2-mercaptoethanol (BME).

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S-Nitrosylated Protein Detection Kit (Biotin Switch), Cayman Chemical

S-Nitrosylated Protein Detection Kit (Biotin Switch), Cayman Chemical

Supplier: Cayman Chemical Company

For detection of S-Nitrosylated proteins.

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QuantiChrom™ Plasmin Assay Kit

QuantiChrom™ Plasmin Assay Kit

Supplier: BIOASSAY SYSTEMS

For quantitative determination of plasmin enzyme activity in biological samples.

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Pierce™ Glycoprotein Carbohydrate Estimation Kit and Reagents, Thermo Scientific

Pierce™ Glycoprotein Carbohydrate Estimation Kit and Reagents, Thermo Scientific

Supplier: Thermo Scientific

Pierce™ Glycoprotein Carbohydrate Estimation Kit enables the amount of protein glycosylation to be measured as a percentage of total purified protein mass.

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Pierce™ Phosphoprotein Phosphate Estimation Kit, Thermo Scientific

Pierce™ Phosphoprotein Phosphate Estimation Kit, Thermo Scientific

Supplier: Thermo Scientific

Pierce™ Phosphoprotein Phosphate Estimation Assay Kit enables classification and identification of proteins as phosphorylated (serine and threonine), as well as semi-quantitative assessment of the phosphorylation level.

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QuantiChrom™ Carbonyl Assay Kit, BioAssay Systems

QuantiChrom™ Carbonyl Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

Quantification of carbonyl groups or protein carbonyls in biological samples.

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Creatinine (urinary) Colorimetric Assay Kit, Cayman Chemical Company

Creatinine (urinary) Colorimetric Assay Kit, Cayman Chemical Company

Supplier: Cayman Chemical Company

For the measurement of creatinine levels in urine

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QuantiChrom™ Hydroxyproline Assay Kit, BioAssay Systems

QuantiChrom™ Hydroxyproline Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

Direct Assays: Hydroxyproline and collagen in biologic and cosmetic samples.

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QuantiChrom™  α-L-Fucosidase Assay Kit, BioAssay Systems

QuantiChrom™ α-L-Fucosidase Assay Kit, BioAssay Systems

Supplier: BIOASSAY SYSTEMS

Direct assays: α-L-Fucosidase in biological samples.

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COX (ovine/human) Inhibitor Screening Assay Kit, Cayman Chemical Company

COX (ovine/human) Inhibitor Screening Assay Kit, Cayman Chemical Company

Supplier: Cayman Chemical Company

Complete drug discovery assay for screening COX-1 and COX-2 inhibitors.

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