Protein Assays

Supplier: SIGMA ALDRICH MICROSCOPY

Bicinchoninic acid is used for the determination of protein concentration. It is responsible for the making of intense purple complex with cuprous ion (Cu+) in the presence of alkaline conditions. The amount of Cu+ is in relation with the protein concentration.

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.

Supplier: MEGAZYME

The Protein Digestibility Assay Kit (K-PDCAAS) is used for in vitro measurement of the Animal-Safe Accurate Protein Quality Score (ASAP-Quality Score Method).

Supplier: Rockland Immunochemicals

Conjugate stabilisers are used with horseradish peroxidase (HRP) and calf intestinal alkaline phosphatase conjugated primary or secondary antibodies or other proteins or compounds in solution. The components of the stabiliser (proprietary) are unique and stabilise both the antibody and enzyme portions of the conjugate.

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.

Supplier: G-Biosciences

CB-X™ Protein Assay is a Coomassie dye based protein assay based on the Bradford Protein Assay. For protein samples in simple, uncomplicated aqueous buffers CB-X™ is a highly sensitive, single reagent assay that can be performed in 5 minutes. For complicated protein samples, CB-X™ Protein Assay is supplied with reagents to clean up the samples and remove all reagents and chemicals that interfere with accurate protein estimation in a single step. These reagents include detergents, chaotropes, reducing agents, alkylating agents, sugars, high salt concentrations, buffering agents and chelating agents. The clean up stage and subsequent protein assay is performed in a single tube to ensure no protein loss and to maintain the accuracy of the 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.

Supplier: G-Biosciences

The Bicinchoninic Acid (BCA) Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions.

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).

Supplier: G-Biosciences

The Bicinchoninic Acid (BCA) Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilised protein solutions, however is dramatically affected by the presence of reducing agents, including DTT, ß-mercaptoethanol and TCEP.

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.

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.

Supplier: Cayman Chemical

A sensitive tool for measuring β-HB levels in plasma, serum, or urine.

Supplier: Cayman Chemical

A simple and sensitive tool for assaying glycogen from tissue.

Supplier: Cayman Chemical

A fluorescence-based method for detecting L-lactate in biological samples such as serum, plasma, blood, urine, and saliva.

Supplier: Biotium

Kit for fluorescence-based measurement of protein unfolding or thermal stability in thermal shift assay, also called Protein Thermal Shift™, differential scanning fluorimetry, or Thermofluor assay.