28456 Results for: "G-Biosciences"

Supplier: G-Biosciences

Ammonium chloride

Supplier: G-Biosciences

Bisacrylamide, powder

Supplier: G-Biosciences

This lab activity is designed to study highly specific lock-key matching properties of antigen-antibody and how this highly specific interaction can be exploited as a tool for research and analysis. This study involves the use of an immunodiffusion technique in which antigen and antibody are allowed to diffuse in a solid agarose medium. When antigen and antibody meet, antigen-antibody complex is formed, which leads to precipitation. Antigen-antibody precipitate is formed in the zone where the concentration of the two matching pairs reaches an optimal known as the zone of equivalence, which results in formation of a visible opaque precipitate region in agarose medium. Those regions of precipitation can be used for determination of concentration or titer of both antigen and antibody. This Antigen-Antibody Interaction kit is a hands-on study of both Ouchterlony Double Diffusion and Radial Immunodiffusion techniques. This kit also provides additional guidance materials for teaching other types of antigen-antibody interactions concepts such as immunoelectrophoresis and immunoprecipitation.

Supplier: G-Biosciences

Nickel chelating resin is an immobilised metal affinity chromatography (IMAC) resin that was specifically designed to utilise Ni²⁺ for the purification of nickel binding proteins, including 6x histidine tagged proteins.

Supplier: G-Biosciences

The final goal in molecular biology is often the expression of a recombinant protein. The transformed plasmids can be used as templates by the bacteria to produce protein. Students learn about essential promoters and other elements necessary for successful protein expression in bacteria, including the differences between inducible and constitutive (unregulated) expression.The Expression of a Recombinant Protein kit allows students to express a protein either constitutively or under the control of an inducible promoter, which is activated with IPTG (isopropyl-beta-D-thiogalactopyranoside).

Supplier: G-Biosciences

Gram-negative lysis buffer is an extraction buffer for soluble proteins from Gram-negative bacteria. It is a proprietary improvement on the lysozyme based lysis in combination with various salts and agents, which allows extraction of soluble proteins. This buffer has been tested for use with several widely used bacteria including E.coli strains.

Supplier: G-Biosciences

ProteCEASE™ is a dry format version of ProteaseArrest™ for large scale preparative applications and for those users who prefer reconstitution prior to use. ProteCEASE™ is a superior general protease inhibitor cocktail that is suitable for purification from mammalian, plant, bacteria and yeast samples. The cocktail contains both irreversible and reversible protease inhibitors to inhibit serine, cysteine and other proteases. EDTA is an optional component for inhibiting metalloproteases.

Supplier: G-Biosciences

BT Lab systems horizontal gel electrophoresis set's abundant buffer not only guarantees cooling effects, but also keeps the pH value stable during operation.

Supplier: G-Biosciences

Many lysis buffers and reagents used in sample preparation are incompatible with routinely used electrophoretic analysis. The presence of contaminants, or interfering agents, such as salts, acids, bases and detergents, result in band distortion and poor protein resolution. As a result, SDS-PAGE gels are hard to analyse and lack reproducibility. PAGE-Perfect™ is a simple, two-step method for concentrating, cleaning and preparing protein solutions for running publication quality gels.

Supplier: G-Biosciences

FOCUS™ SubCell for the fractionation of mitochondrial, nuclear, and cytosolic soluble and membrane proteins.

Supplier: G-Biosciences

Protein-S-S-Reductant™ uses TCEP (Tris [2-carboxyethyl] phosphine), a popular alternative to β-mercaptoethanol and DTT (dithiothreitol). TCEP improves stability, increases effectiveness, and reduces proteins over a wider range of pH, including lower acidic pHs. Protein-S-S-Reductant™ completely reduces stable disulfide bonds in less than 5 minutes at room temperature and is compatible with the protein alkylation reactions. This ready to use solution is at a neutral pH and stabilised for long-term storage. Simply supplement Protein-S-S-Reductant™ in place of DTT or β-mercaptoethanol and boil the sample.

Supplier: G-Biosciences

Protein assay, Resorufin-Casein protease substrate

Supplier: G-Biosciences

Centrifuge tubes 1,5 ml.

Supplier: G-Biosciences

Premixed buffer powders that simply require adding deionised water to generate a ready-to-use buffer.

Supplier: G-Biosciences

The FOCUS™ Reduction-Alkylation Kit offers a simple two-step method for reduction and alkylation of protein samples for 2D gel analysis.

Supplier: G-Biosciences

Add an appropriate volume of the supplied rehydration buffer to the dry, ready-to-use, urea based equilibration buffer.

Supplier: G-Biosciences

FOCUS™ FASTsilver™ produces crystal clear backgrounds and maximal peptide recovery needed for critical analysis by mass spectrometry. Complete proteolytic digestion and recovery of peptides is required for optimal analysis, however silver ions in traditional silver staining kits inhibit proteolytic digestion. In addition, glutaraldehyde, a common sensitiser in silver stains, modifies peptide lysine residues preventing complete digestion and recovery.

Supplier: G-Biosciences

Trypsin digestion mix provides optimal buffered conditions for in gel trypsin digestion of proteins. Suitable for 100 protein spots.

Supplier: G-Biosciences

FOCUS™ Protein Reductant Kit is a water soluble, odorless, non-toxic and stable TCEP [Tris (2-carboxyethyl) phosphine] reductant for protein reduction.

Supplier: G-Biosciences

The Apoptotic DNA Ladder Kit contains the reagents necessary for the preparation of cellular fractions for the production of apoptosis nucleosomal DNA ladders. The kit does not require toxic phenol and DNA ladder is prepared either with or without genomic DNA.

Supplier: G-Biosciences

InGel™ provides a reliable method for the proteolytic digestion and subsequent extration of silver stained proteins in gel for subsequent analysis by mass spectrometry.

Supplier: G-Biosciences

Lipid rafts are membrane microdomains that are enriched in caveolin, cholesterol, glycolipids, sphingolipids and glycosyl-phosphatidylinositol. Lipid rafts are also known as detergent-insoluble glycolipid-enriched complexes (GEMs) or DIGs. Many signalling proteins, including glycosylphosphatidylinositol (GPI)-anchored proteins, doubly-acylated tyrosine kinases of the Src family, and transmembrane proteins, are located in lipid rafts. Lipid raft localised proteins have been shown to be involved in intracellular membrane trafficking and signalling.

Supplier: G-Biosciences

Potassium acetate 3 mol/l (3 N) in aqueous solution

Supplier: G-Biosciences

Protein preparations specifically prepared for standardising electrophoresis methods and protocols. Substantially free from non-protein agents such as nucleic acids, detergents, salts, lipids and other common laboratory agents, the protein preparation has low conductivity (<50 μs). Supplied as dry protein pellets, simply re-hydrate and use. Proteomic protein sample controls are available for animal cells, E.coli, yeast, plant or as a control set that contains one 2 mg vial of each.

Supplier: G-Biosciences

Ammonium acetate solution 5M

Supplier: G-Biosciences

Ethidium bromide 10 mg/ml in aqueous solution

Supplier: G-Biosciences

Recombinant human caspases 1 - 3 and 6 - 10 are supplied lyophilised in quantities of 25 units. One unit of the specific recombinant caspase is the enzyme activity that cleaves one nanomole of a specific caspase substrate per hour at 37 °C in a reaction solution containing 50mM HEPES (at a pH of 7,2), 50 mM NaCl, 0,1% CHAPS, 10 mM EDTA, 5% glycerol and 10 mM DTT.

Supplier: G-Biosciences

BLOK™ BLOTTO is a 5% novel modified milk protein solution used for Westerns, ELISA and dot blot blocking.

Supplier: G-Biosciences

The subcellular fractions from liver tissue are prepared by carefully dissecting out anatomically and functionally distinct regions of adult mouse livers.

Supplier: G-Biosciences

E-64 is an irreversible inhibitor of cysteine proteases. It interacts with the Sn subsites of proteases but has no action on cysteine residues in other proteins.