28229 Results for: "G-Biosciences"

Supplier: G-Biosciences

RUBEO™ is a fluorescent protein stain that is ideal for staining proteins in 1D and 2D electrophoresis gels.

Supplier: G-Biosciences

Immobilised β-cyclodextrin is designed to allow refolding of recombinant proteins that were aggregated or formed inclusion bodies when expressed in the genetically engineered cells. The refolding of misfolded proteins is adapted from GroE chaperone refolding mechanism.

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

Bsu DNA Polymerase. Large fragment is from Bacillus subtilis and is modified to retain its 5'→ 3' DNA polymerase activity with its 5'→ 3' exonuclease domain removed. It also lacks the 3'→ 5' exonuclease activity.

Supplier: G-Biosciences

T4 UvsX DNA recombinase mediates DNA strand exchange between homologous chromosomes. The protein forms a right-handed nucleoprotein complex on single ssDNA called the presynaptic filament that can search for homology in duplex DNA and pair the recombining DNA molecules to form a DNA joint molecule. This process is aided by ssDNA binding proteins and recombination mediators. The filament is then elongated by DNA polymerase with the newly synthesised strand displacing the old strand. The newly synthesised duplex DNA can then act as a template for the next cycle to achieve exponential amplification of dsDNA. E.coli cells expressing recombinant T4 UvsX gene.

Supplier: G-Biosciences

T4 recombination mediator protein, UvsY plays important roles in homologous recombination (HR). During HR, the UvsX recombinase competes with the prebound single-stranded binding protein gp32 for DNA-binding sites and UvsY stimulates this filament nucleation event.

Supplier: G-Biosciences

This orbital shaker is compact and well designed.

Supplier: G-Biosciences

In this lab activity, students learn to perform simple protein isolation procedures to isolate the protein fingerprint from various fresh tissues. They will compare the protein fingerprints of four different tissues to understand that the function of a particular organ is due to the proteins that are localised to the specific organ. Also included in this kit are four dried protein samples (from mouse liver, brain, heart and lungs) to compare as a control, if fresh tissues cannot be obtained.

Supplier: G-Biosciences

This lab activity has two objectives - to deepen the understanding of protein molecules and for students to learn the potential of electrophoresis in protein analysis. Students study the fundamentals of protein structure from their primary structure to the more complex tertiary and quaternary structures, utilising protein electrophoresis. Complex mixtures of protein samples and characterised pure protein samples, in conjunction with electrophoresis, are utilised to study protein structure and the potential of protein electrophoresis. Using non-denaturing and denaturing electrophoresis, students understand the difference between primary, tertiary and quaternary structures, the importance of disulfhydryl bridges in maintaining protein structure and electrophoresis in studying complete proteins and protein subunits.

Supplier: G-Biosciences

Ion exchange chromatography is used to separate charged molecules from complex biological samples. The charged molecules bind to a solid support carrying an opposite charge to the molecule. Proteins contain regions of charged groups on the surface which interact with the ion exchange groups immobilised on the solid support (resin column). Immobilised proteins are eluted by changing either pH or the salt gradient or a combination of both. This lab activity involves preparation of a crude protein extract and running ion exchange chromatography for isolation of proteins.

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

G-Biosciences' Sodium meta -Periodate is a mild oxidizing agent that converts carbohydrates to activated active aldehydes

Supplier: G-Biosciences

CytoScan™ LDH Cytotoxicity assay quantitatively measures the cytosolic, lactate dehydrogenase (LDH) enzyme, which is released from damaged cells. The released LDH is measured with a coupled enzymatic reaction that results in the conversion of a tetrazolium salt (iodonitrotetrazolium; (INT)) into a red color formazan by diaphorase. The resulting formazan is measured at 490 nm.

Supplier: G-Biosciences

The FOCUS™ Protein Alkylation Kit is a proteomic grade iodoacetamide reagent kit for blocking thiols by alkylation. The kit is supplied with a proprietary buffer necessary for efficient alkylation of thiols, while minimising reoxidation of the competing thiol pairs in protein samples. Simply add an appropriate amount to reagent solutions for alkylation of protein thiol groups.

Supplier: G-Biosciences

Extracts and solubilises nearly all of the proteins from mammalian samples, including membrane as well as soluble proteins, by a strong chaotropic extraction buffer to solubilise even the most difficult proteins. Suitable for biological samples from animal tissues and adherent and suspension cells.

Supplier: G-Biosciences

For the rapid purification of soluble, 6X His or GST tagged proteins.

Supplier: G-Biosciences

Sodium hydrogen carbonate

Supplier: G-Biosciences

L(+)-Ascorbic acid

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

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

LabSafe™ Nucleic Acid Stain is a safe nucleic acid stain for the visualization of double-stranded DNA, single-stranded DNA, and RNA in agarose gels.

Supplier: G-Biosciences

G-Biosciences offers several different biotechnology-grade agarose powders. Agarose II has a low melting and gelling temperature compared to standard agaroses. The low melting temperature allows for the recovery of undamaged nucleic acids below the denaturation temperature. The low gelling temperature ensures that the agarose will be in a liquid state at a temperature range where in-gel manipulations can be performed without prior extraction from the agarose slice.

Supplier: G-Biosciences

CDI amine reactive agarose consists of 6% cross-linked agarose activated with CDI (1,1’-carbonyl diimidazole) to form reactive imidazole carbamates.

Supplier: G-Biosciences

IMMUNOTAG KIR4.1 POLYCLONAL ANTIBODY 1 * 50 µl

Supplier: G-Biosciences

Detergents are essential for protein solubility during protein extraction and sample preparation, especially when working with hydrophobic proteins. The presence of high concentrations of detergents in protein samples can impair ELISA, IEF, protease digestion of proteins and suppress peptide ionisation when analysed by mass spectrometry.

Supplier: G-Biosciences

HOOK™ IgG biotinylation kits are designed for the biotinylation of IgG molecules by immobilising the IgG molecules on a solid support. Nickel chelating resin allows for the rapid removal of uncoupled biotin and therefore eliminates the need for further dialysis or desalting of the biotinylated antibody.

Supplier: G-Biosciences

3-[(3-Cholamidopropyl)dimethylammonio]-1-propane sulphate (CHAPS) 5% in aqueous solution

Supplier: G-Biosciences

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

Supplier: G-Biosciences

Magnesium sulphate 1 mol/l in aqueous solution

Supplier: G-Biosciences

Phenol red 0.5% in aqueous solution