Assay Kits

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  • Micro Bicinchoninic Acid (BCA) Protein Assay

    G-Biosciences

    The Micro Bicinchoninic Acid (BCA) Protein Assay is a highly sensitive colorimetric assay that is compatible with detergent solubilized protein solutions. This modification of the Bicinchoninic Acid (BCA) Protein Assay is suitable for dilute protein samples (0.5-20µg/ml). The Micro BCA…

  • Protease Assay Kit

    G-Biosciences

    The Protease Assay Kit is designed for the quantitative determination of proteases present in a protein sample, using a dye-labeled protein substrate. The proteases present in the sample of interest will digest the protein substrate and release dye labeled peptides. The absorbance of the…

  • Protein dotMETRIC™

    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. Under the assay's specific buffer conditions the protein enters into the matrix of the test strip, binds and saturates as protein…

  • Bicinchoninic Acid (BCA) Protein Assay

    G-Biosciences

    The Bicinchoninic Acid (BCA) Protein Assay, also known as the Smith Assay, is a highly sensitive colorimetric assay that is compatible with detergent solubilized protein solutions. The Bicinchoninic Acid (BCA) Protein Assay primarily relies on two reactions. Firstly, the peptide bonds in the…

  • RED 660™ Protein Assay

    G-Biosciences

    RED 660™ Protein Assay is a single reagent colorimetric assay that outperforms commercial colorimetric assays, including Bradford and improved Coomassie/ Bradford assays. RED 660™ Protein Assay offers greater linearity, greater color stability, and greater compatibility with detergents,…

  • CB™ Protein Assay

    G-Biosciences

    An improved Coomassie Dye based protein assay based on the Bradford Protein Assay (1). This assay is suitable for the simple and rapid estimation of protein concentration. This assay is based on a single Coomassie dye based reagent. The binding of protein to the dye results in a change of color…

  • SAMfluoro: SAM Methyltransferase Assay

    G-Biosciences

    Methylation of key biological molecules and proteins plays important roles in numerous biological systems, including signal transduction, biosynthesis, protein repair, gene silencing and chromatin regulation. The S-adenosylmethionine (SAM) dependent methyltransferases use SAM, the second most…

  • CytoScan™-fluoro Cytotoxicity Assay

    G-Biosciences

    The CytoScan™-fluoro is based on the quantification of cellular lactate dehydrogenase (LDH) released when cells are damaged or under stress. Lactate dehydrogenase released into the culture medium is measured with a diaphorase coupled enzymatic assay that results in the conversion of a…

  • Lumino™ ATP Detection Assay

    G-Biosciences

    Lumino™ ATP Detection Assay is designed for rapid, convenient and quantitative detection of adenosine-5’-triphosphate (ATP). It’s a bioluminescent assay which is based on requirement of ATP by luciferase enzyme for production of light. ATP Detection Assay has widespread…

  • Lumino™ Firefly Luciferase Glow Assay

    G-Biosciences

    Lumino™ Firefly Luciferase Glow Assay is designed for high throughput screening or quantification of luciferase expression in mammalian cells which is mainly performed by batch processing of 96- and 384- well plates. Lumino™ Firefly Luciferase Glow Assay is homogenous,…

  • Calcein AM Cell Viability Assay

    G-Biosciences

    Calcein AM or Calcein acetoxymethyl ester is a hydrophobic compound which passes easily through cell membrane into live cells and is used for cell viability assays. The non-fluorescent calcein AM dye is hydrolyzed by cellular esterases to give calcein which is fluorescent and is retained in the…

  • NAD+/NADH Assay [Colorimetric]

    G-Biosciences

    NAD+/NADH Assay [Colorimetric] is designed for sensitive detection of intracellular nucleotides, NADH, NAD+ and their ratio. The kit specifically detects NAD+, NADH and not NADP. This colorimetric assay is based on NAD cycling enzyme mix which increases the sensitivity of detection. Features:…

  • SAM510™: SAM Methyltransferase Assay

    G-Biosciences

    Methylation of key biological molecules and proteins plays important roles in numerous biological systems, including signal transduction, biosynthesis, protein repair, gene silencing and chromatin regulation. The S-adenosylmethionine (SAM) dependent methyltransferases use SAM, the second…

  • Protease Screening Kit

    G-Biosciences

    Sensitive protease screening is needed to study protease activity present in the sample of interest. The Protease Screening Kit provides you with a simple and quick method for testing your samples for proteolysis. Simply incubate your sample in the reagent provided and obtain results. The…

  • Protn-Latex™

    G-Biosciences

    Protn-Latex ™ is a simple and reliable method for estimation of protein contamination in latex. Protein estimation can be performed either on the production site or in any laboratory with a minimum of skill or instrumentation. The test detects as low as 25-40µg protein /gm latex (or…

  • PEROXsay™ Peroxide Assays

    G-Biosciences

    PEROX say ™ is a colorimetric quantitative peroxide assay that measures the oxidation of ferrous (Fe 2+ ) ions to ferric (Fe 3+ ) ions. Peroxides react with a sugar alcohol converting it to a peroxyl radical that subsequently starts the oxidation of ferrous ions to ferric ions. The acidic pH…

  • Bicinchoninic Acid (BCA) Protein Assay: Reducing Agent Compatible

    G-Biosciences

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

  • CL (Compatible Lowry's) Protein Assay

    G-Biosciences

    G-Biosciences’ CL (Compatible Lowry) Protein Assay is based on the widely cited protein assay by Lowry et. al. (1951). The CL Protein Assay improves upon the traditional Lowry method to be compatible with common laboratory agents known to interfere with Lowry protein assays such as reducing…

  • Fluoro™ Protease Assay

    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)-labeled casein as a general protease substrate. The fluorescein label on the FITC-casein is highly quenched. When the…

  • PhosphoQuant™

    G-Biosciences

    PhosphoQuant ™ is specifically designed for quick and reliable determination of whether a purified protein is phosphorylated and the extent of phosphorylation. The assay is based on the alkaline hydrolysis of phosphates from seryl and threonyl residues in phosphoproteins and the subsequent…

  • Phosphatase Assay Kit

    G-Biosciences

    The Phosphatase Assay kit is designed to measure the activity of phosphatases in biological samples and to screen for agonists and inhibitors of phosphatases. The Phosphatase Assay kit uses para-nitrophenyl phosphate (pNPP), a chromogenic substrate for most phosphatases, including alkaline…

  • JC-1 Mitochondrial Membrane Potential Assay

    G-Biosciences

    JC-1 Mitochondrial Membrane Potential Assay comprise of lipophilic cationic fluorescent dye; 5,5,6,6’-tetrachloro-1,1’,3,3’-tetraethylbenzimi-dazoylcarbocyanine iodide (JC-1). In healthy cells, JC-1 enters the energized mitochondria and form aggregates which change the fluorescent…

  • ProteSEEKER™

    G-Biosciences

    Protocols.io provides an interactive version of this protocol where you can discover and share optimizations with the research community. ProteSEEKER™ identifies specific types of proteases with a panel of twelve protease inhibitors and a sensitive colorimetric protease screening…

  • CytoScan™ WST-1 Cell Cytotoxicity Assay

    G-Biosciences

    CytoScan™ WST-1 Cell Proliferation Assay is a sensitive and accurate assay for cell proliferation and cytotoxicity. The assay is highly convenient as it is performed in a single cell tissue culture well and requires no washing, harvesting or solubilization of cells. Adherent or…

  • NI™ (Non-Interfering™) Protein Assay Kit

    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,…

  • Glutathione Colorimetric Assay Kit

    G-Biosciences

    Reduced glutathione (L-γ-glutamyl-L-cysteinylglycine), a tripeptide, serves as a key antioxidant in animal, plant, fungi and bacteria by providing free thiol. Glutathione exist in reduced (GSH) and oxidized (GSSG; gluthathione disulphide) forms in cells and tissues, and the concentration of…

  • NUCLEIC dotMETRIC™

    G-Biosciences

    A 1µl Assay For Rapid Estimation of DNA, RNA and Oligo Concentration NUCLEIC dotMETRIC™ kit provides a quick and accurate method for detecting and measuring DNA, RNA and oligonucleotides. The system uses a unique combination of proprietary reagents and test strips and is an…

  • Fluorescent ß-Galactosidase Assay (MUG)

    G-Biosciences

    The Fluorescent β-Galactosidase Assay (MUG) is a highly sensitive, fluorescent assay for determining the β-galactosidase activity in the lysates of cells transfected with a β-galactosidase expression construct The study of the lac operon has played an important role in…

  • SDS Detection Kit

    G-Biosciences

    A reagent kit for detection and estimation of SDS in a sample. Mix the test sample in the extraction buffer reagents provided with the kit. If SDS is present in the sample, a blue color is extracted that can be quantitatively measured. The working range of the assay is 0.02-0.2% SDS.

  • Annexin V-FITC Apoptosis Assay

    G-Biosciences

    Apoptosis is a form of programmed cell death which is essential as a normal part of development in multicellular organisms. Apoptosis go awry in some disease states such as Alzheimer’s and cancer. Annexin V-FITC Apoptosis Assay is designed to detect apoptosis. It is based on a property…

  • Assay Strips and Holders

    G-Biosciences

    Assay Strips and Holders: 8-well strips of 200ml flat bottomed wells. Ideal for ELISA assays. Cost effective as individual strips can be used as opposed to a whole 96-well plate. Each holder holds 12 strips, sold separately.

  • CytoScan™ SRB Cytotoxicity Assay

    G-Biosciences

    CytoScan™-SRB Cytotoxicity Assay is an accurate and reproducible assay based upon the quantitative staining of cellular proteins by sulforhodamine B (SRB). This assay has been used for high-throughput drug screening at the National Cancer Institute (NCI) (1). Sulforhodamine B is an…

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