46 Results for: "G-Biosciences"

Supplier: G-Biosciences

TE Buffer (Tris-EDTA Buffer) is a common molecular biology buffer that is used to protect DNA and RNA from degradation. The Tris buffering agent and EDTA metal chelating properties help protect DNA and RNA.

Supplier: G-Biosciences

EDC is a heterobifunctional, water-soluble, zero-length carbodiimide crosslinker that is used to couple carboxyl groups to primary amines. EDC activates carboxyl groups first and forms amine reactive O-acylisourea imtermediate that spontaneously reacts with primary amines to form an amide bond and isourea by-product.

Supplier: G-Biosciences

Tween® 20 is commonly used non ionic detergent for solubilising membrane proteins during isolation of membrane-protein complexes.

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

SATA reacts with primary amines, adding protected sulphhydryl residues. It is soluble in DMSO and the sulphhydryl group can be used in coupling reactions.

Supplier: G-Biosciences

Protein assay, dotMETRIC™ spot application device

Supplier: G-Biosciences

Total Protein Extraction (TPE™) Kit is a universal lysis system for the solubilisation of total proteins from animal, plant, yeast, bacteria, and other biological samples. The kit contains ready to use buffers for extracting total protein from cells and tissues for SDS-PAGE analysis.

Supplier: G-Biosciences

Magnesium chloride hexahydrate

Supplier: G-Biosciences

Sodium chloride

Supplier: G-Biosciences

Molecular Grade Water is ultrapure water that certified RNase, DNase and Protease free, is suitable for use in molecular biology applications, which demand a high quality of water and assurance that the water is free from nucleases and protease contamination. No toxic agents, such as DEPC, are used in the manufacturing of Molecular Grade Water, eliminating DEPC interference of enzymatic reactions.

Supplier: G-Biosciences

Formamide

Supplier: G-Biosciences

Diethyl pyrocarbonate

Supplier: G-Biosciences

Pfu DNA Polymerase, derived from the hyperthermophilic archae Pyrococcus furiosus, has superior thermostability and proofreading properties compared to other thermostable polymerases. It has a molecular weight of 90 kDa and can amplify DNA targets up to 2 kb. The elongation velocity is 0,2~0,4 kb/min (70~75 °C). Pfu DNA Polymerase possesses 3' to 5' exonuclease proofreading activity that enables the polymerase to correct nucleotide misincorporation errors. This means that Pfu DNA Polymerase-generated PCR fragments will have fewer errors than Taq-generated PCR inserts. Using Pfu DNA Polymerase results in blunt-ended PCR products, which are ideal for cloning into blunt-ended vectors. Pfu DNA Polymerase is superior for techniques that require high-fidelity DNA synthesis.

Supplier: G-Biosciences

These disposable spin columns are designed for protein purification. These spin columns are uniquely designed, with a snap off end converting to a closure for the column for easy manipulation and use.

Supplier: G-Biosciences

Tween® 80 for solubilising membrane proteins during isolation of membrane-protein complexes.

Supplier: G-Biosciences

This kit teaches aseptic handling techniques and cultivation of bacteria in liquid culture media and on solid phase agar plates. This kit is designed to educate students about the various stages of the bacterial growth cycle, i.e. lag, log or exponential, stationary and decline or death phases. The kit also teaches the importance of growing bacteria on solid phase agar plates to isolate single colonies of bacteria. This lab activity involves preparation of culture medium and solid agar plates.

Supplier: G-Biosciences

CytoScan™-SRB Cytotoxicity Assay is based upon the quantitative staining of cellular proteins by sulforhodamine B (SRB). The assay is used for cell density determination, based on the measurement of cellular protein content.

Supplier: G-Biosciences

The TBS solution is primarily used as a wash and blocking buffer diluent for Western blot, ELISA and immunoassays.

Supplier: G-Biosciences

The PhosphataseArrest™ phosphatase inhibitor cocktails are ready to use 100X solutions that are simply added to either extraction buffers or samples.

Supplier: G-Biosciences

Determination of protein concentration is an essential technique in all aspects of protein studies and proteomics. The Assays for Protein Quantification kit includes three of the most widely used protein assays and allows for a direct comparison of the three assays that teaches students the benefits and limitations of each assay. Each assay is available individually to allow teaching of a specific assay, without the option of comparing and contrasting with other assays. The three assays covered are the Biuret Protein Assay, Lowry Protein Assay and the Coomassie Blue Dye Protein Assay. The Assays for Protein Quantification kit provides all the reagents required to perform both protein assays, including protein standards for accurate quantification, in a single lab activity. An often underestimated factor in quantifying protein is the presence of non-protein interfering agents, such as salts and detergents. This kit teaches students about common laboratory agents that affect the protein assays, the reasoning behind their interferences and how to overcome the interference. Students also learn how to select a protein assay for different applications.

Supplier: G-Biosciences

Agar

Supplier: G-Biosciences

Antibiotics play a crucial role in the manipulation, screening and killing of bacteria in a range of biotechnology processes. This kit specifically teaches the basic principles of antibiotics, bacterial resistance and susceptibility. Students learn and understand the use of antibiotic resistance in screening for infectious diseases. Utilising a bacterial strain, students learn the effects of different antibiotics and visualise bacterial sensitivity and resistance to the supplied antibiotics. This method involves the use of filter paper discs impregnated with a specified concentration of antibiotics on the surface of an agar plate containing microbial cells. This kit will enable students to analyse the inhibitory effects of different antibiotics on selected bacterial cells and then determine which antibiotic is the most suitable to treat a bacterial infection.

Supplier: G-Biosciences

The Gram staining method was first described in 1844 by the Danish bacteriologist Hans Christian Gram, after whom the test was named. The Gram staining test for bacteria is one of the most important tests in microbiology and is often one of the first tests performed in the identification of bacteria. The Gram staining method utilises the properties of bacterial cell walls and the stain crystal violet. Gram-positive microorganisms have a higher peptidoglycan and lower lipid content than Gram-negative bacteria in their cell walls and this makes them capable of retaining the Gram stain. This kit is supplied with two strains of bacteria and all the necessary components to carry out the Gram staining.

Supplier: G-Biosciences

A single step stain for the rapid detection of proteins resolved by PAGE. The stain is based on the interaction of zinc ions with polyacrylamide and proteins.

Supplier: G-Biosciences

Tween® 80 (Polysorbate)

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

Pre-cut transfer membranes and padding for Western blot transfer procedures. Pre-cut membranes are supplied sandwiched between blotting paper padding. Simply soak the membrane in transfer buffer and assemble with the gel in a transfer cassette. Nitrocellulose (0,22 µm pore size) and PVDF (0,45 µm pore size) membranes are available.

Supplier: G-Biosciences

Tryptone is an assortment of peptides generated by the tryptic digestion of casein. It is commonly used in microbiology to produce Lysogeny broth for the growth of E. coli and other microorganisms, as it provides a source of amino acids.

Supplier: G-Biosciences

tris-acetate/sds running buffer is used to resolve high molecular weight proteins (36-400 kda) under denaturing conditions on tris/a cetate gels 1 * 500 mL

Supplier: G-Biosciences

Kit protein dotMETRIC (> 300 assays). Protein assay for rapid estimation of protein concentration with only a single micro liter of protein sample. Test strip is spotted and results are visible from 2-8 minutes with no protein to protein variation. N 1 * 1 KIT