Protein Extraction Reagents

Supplier: Abcam

Trypsin-based antigen retrieval solution for Protease-Induced Epitope Retrieval (PIER) (ab970).

Supplier: G-Biosciences

The use of peptides for the generation of antibodies against specific peptides has become an essential tool in proteomic research. A crucial step in using peptides as antigens is their coupling to carrier proteins. Peptides are designed to be good epitopes by themselves; however they fail to elicit a strong antibody response. The reason for this is that the epitopes are able to bind to the B-cells, but are too small to contain additional motifs required to associate with class II molecules and T-cell receptors. The carrier proteins, once coupled to the peptides, provide these additional motifs and generate a strong antibody response. All three carrier proteins are also offered as activated carrier proteins, named as ActiveHOOK™.

Supplier: G-Biosciences

OrgoSol DetergentOUT™ is suitable for removal of detergents from protein solutions, including hydrophobic protein solutions. Compatible with all detergent types, its performance is not dependent on the concentration of detergents in the solution. It is highly flexible and can be used to process small and large sample volumes.

Supplier: G-Biosciences

The 'critical micelle concentration' (CMC) of a detergent varies with temperature, pH, ionic strength, detergent concentration, purity and presence of organic agents in the detergent. Using a large excess of detergent may pose problems during purification procedures or other downstream applications.

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

SilverOUT removes interfering silver ions from gel pieces.

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: Thermo Fisher Scientific

Endoproteinase Lys-C protease is a highly purified native endoproteinase validated for maximum activity and stability in proteomic applications.

Supplier: Thermo Fisher Scientific

Asp-N protease is a highly specific endoproteinase used to improve sequence coverage in mass spectrometry protein identification applications.

Supplier: Thermo Fisher Scientific

Glu-C protease is a highly specific endoproteinase use to improve sequence coverage in mass spectrometry protein identification applications.

Supplier: Thermo Fisher Scientific

Chymotrypsin protease is a purified native endoproteinase validated for maximum activity and selectivity in proteomic applications.

Supplier: Thermo Fisher Scientific

Pierce™ TMTzero™ Label Reagent serves as a "light" tag for MS-level peptide quantitation similar to duplex isotopic metabolic labeling, such as SILAC, or isotopic dimethylation labeling.

Supplier: G-Biosciences

InGel™ Blue provides a complete set of reagents for the in-gel tryptic digestion and extraction of peptides for mass spectrometry (MALDI and LC MS/MS). The kit is specifically designed for use with Coomassie® or fluorescent stained protein spots/bands.

Supplier: G-Biosciences

Ficin (or Ficain) is a cysteine protease enzyme (EC 3.4.22.3) isolated from fig latex is that has the endopeptidase activity to cleave Immunoglobulin G (IgG) molecules in the hinge region.

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.