Estrazione delle proteine

Supplier: G-Biosciences

Antibody Fab and F(ab)₂ Fragmentation of Mouse IgG₁ Kits are designed for the generation and isolation of Fab and F(ab)₂ fragments from mouse IgG₁ molecules. The kit utilises Immobilised Ficin resin. Ficin (or Ficain) (~25000 Da) is a cysteine protease enzyme (EC 3.4.22.3) isolated from fig latex that has the endopeptidase activity to cleave immunoglobulin G molecules in the hinge region. Ficin has an effective range of pH 4 to 9,5 with an optimal pH of 6,5 and cleaves bonds that involve uncharged or aromatic amino acids. Ficin is typically used to cleave mouse IgG₁ as this is difficult to cleave with papain and pepsin. In the presence of 1 to 4 mM or 10 to 20 mM cysteine, ficin generates F(ab)₂ and Fab fragments respectively.

Supplier: G-Biosciences

Antibody Fab Fragmentation Kits are designed for the generation and isolation of Fab fragments from IgG molecules. The kits utilise Immobilised Papain resin. Immobilised Papain offers the advantage of generating Fab and fragments without the need to remove the papain enzyme after digestion. Following papain digestion the Fab fragments are separated from undigested IgG and the Fc region with the supplied Protein A Spin Column. Protein A Resin binds the IgG and Fc molecules and the Fab are rapidly collected.

Supplier: G-Biosciences

The F(ab)₂ Fragmentation kits are designed for the generation and isolation of F(ab)₂ fragments from IgG molecules. The kit utilises Immobilised Pepsin resin. Pepsin is a proteolytic enzyme that is routinely used for the generation of F(ab)₂ fragments from immunoglobulin G (IgG). One or more of the disulfide bonds that join the heavy chains in the hinge region are preserved, so the two Fab regions of the antibody remain joined together, yielding a divalent molecule (containing two antibody binding sites), hence the designation F(ab)₂. The light chains remain intact and attached to the heavy chain, whereas the Fc fragment is digested into small peptides. The Immobilised Pepsin offers the distinct advantage of eliminating enzyme contamination of the F(ab)₂ fragments.

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

DetergentOUT™ Tween® is a spin column format detergent removal resin for polysorbate or Tween® detergents or surfactants.

Supplier: Abcam

Proteolytic antigen retrieval (PIER) reagent HistoReveal (ab103720).

Supplier: Abcam

Mitochondria isolation kit for tissue is designed for the efficient isolation of mitochondria from hard or soft tissues, providing high-quality mitochondria for downstream analysis. The kit contains enough reagents for up to 10 isolations. - Cited in over 65 publications - Isolates mitochondria from both hard and soft tissues, such as brain, liver, and heart - Suitable for western blotting, immunocapture, or activity assays - Simple Protocol – no need for ultracentrifugation, making the process more efficient and user-friendly

Supplier: Abcam

ab110169 (MS851) contains sufficient reagents for up to 10 benchtop mitochondria isolations from hard or soft tissues.

Supplier: Abcam

Mitochondria isolation kit for cultured cells is designed for efficient isolation of mitochondria from cultured mammalian cells. The kit provides enough reagents for up to 20 isolations and is suitable for analyzing mitochondria by Western blotting, immunocapture, or activity assays. - Cited in over 75 publications - Isolates mitochondria from cultured mammalian cells with ease - Useful in Western blotting, immunocapture, or mitochondrial activity assays - Sufficient reagents for up to 20 benchtop mitochondria isolations

Supplier: Abcam

ab110171 contains sufficient reagents for up to 20 benchtop mitochondria isolations from mammalian cultured cells.

Supplier: Abcam

5 cells or 1 mg of tissue, with optimal results from >10^6 cells or >10 mg of tissue - High yield – up to 0.4 mg of histone protein per 10^7 cells or 100 mg of tissue - Useful in western blot analysis of histone modifications and post-translational modifications - Not for ChIP; use a chromatin extraction kit for ChIP preparation

Supplier: Abcam

60-minute chromatin extraction kit is a complete set of optimized buffers and reagents for isolating chromatin or DNA-protein complex from mammalian cells and tissues in a simple and rapid format. - Cited in over 50 publications

Supplier: G-Biosciences

Immobilised Iminobiotin Resin consists of iminobiotin, a cyclic guanido analog of biotin, covalently coupled to 6% crosslinked agarose. The resin allows for the purification of avidin, streptavidin and Neutravidin and their subsequent gentle elution using non denaturing elution buffers.

Supplier: G-Biosciences

Immobilised biotin resin is designed for the high affinity chromatography purifications of avidin, streptavidin and neutravidin protein. The resin consists of biotin coupled to 6% cross-linked agarose.

Supplier: Thermo Fisher Scientific

The Pierce™ Universal Nuclease for Cell Lysis is ideal for a wide variety of applications where complete digestion of nucleic acids is needed when preparing cell lysates.

Supplier: Biotium

AccuOrange™ Protein Quantitation Kit is a highly sensitive fluorescence-based assay for quantitating purified protein samples in 96-well format (excitation/emission = 480/598 nm).