You searched for: Protein Purification Reagents

Supplier: Thermo Fisher Scientific

Bond-Breaker™ TCEP Solution (neutral pH) is a stable, 0,5 M solution of the thiol-free, phosphine-based TCEP compound, useful as a 10X stock for addition to SDS-PAGE sample loading buffers to reduce protein disulphide bonds.

Supplier: Thermo Fisher Scientific

Pierce™ MS(PEG)_n reagents are methyl-terminated, polyethylene glycol compounds (n equals 4 to 24 PEG units) and TMS(PEG)₁₂ is a three-branched, polyethylene glycol compound (3× 12 PEG units). Both are activated as NHS esters for covalent pegylation of primary amines on proteins (eg. lysines) or assay surfaces.

Supplier: Thermo Fisher Scientific

Jacalin is an alpha-D-galactose binding lectin extracted from jack-fruit seeds (Artocarpus integrifolia). This lectin is a glycoprotein (approx. 40 kDa) composed of four identical subunits. Jacalin binds to human IgA1 (also called serum or secretory IgA) with high specificity (i.e., it does not bind IgG or IgM). Thus, Jacalin that has been immobilised on crosslinked beaded agarose is useful for purifying human IgA from serum or colostrum samples.

Supplier: G-Biosciences

Recombinant streptavidin from Streptomyces avidinii, produced in E.coli.

Supplier: Merck Millipore (Oncogene)

Purified recombinant Protein G conjugated to peroxidase can be used in direct immunoassay.

Supplier: Thermo Fisher Scientific

MALDI Matrices are highly purified, recrystallised reagents packaged in convenient single-use tubes sufficient for analysing up to 96 samples.

Supplier: G-Biosciences

Chelex beads are made of a styrene divinylbenzene copolymer containing paired iminodiacetate ions, which act as chelating groups in binding polyvalent metal ions.

Supplier: Merck Millipore (Calbiochem‎)

A ready-to-use stable, neutral form of the disulfide-reducing agent TCEP, hydrochloride.

Supplier: Thermo Fisher Scientific

The methyl-PEG_n-amine (MA[PEG]_n) PEGylation reagents are methyl ether-terminated PEG amines that are used for modifying proteins or surfaces such as beads, nanoparticles and self-assembled monolayers. These PEGylation reagents are homogenous compounds of defined molecular weight and spacer length, providing precision in optimising modification applications.

Supplier: Thermo Fisher Scientific

An optimized buffer for aldehyde-hydrazide and aldehyde-alkoxyamine coupling reactions.

Supplier: Thermo Fisher Scientific

Methyl-PEG₄-thiol is a methyl- and sulfhydryl-terminated compound that contains a 4-unit polyethylene glycol (PEG) spacer and is used to modify surfaces such as quantum dots, monolayers and magnetic particles.

Supplier: Thermo Fisher Scientific

Carboxy-PEG₁₂-thiol, is a carboxyl- and sulphhydryl-terminated compound that contains a 12-unit polyethylene glycol (PEG) spacer and is used to modify surfaces such as quantum dots, monolayers and magnetic particles.

Supplier: MP Biomedicals

Protein A is a recombinant Fc-binding protein from Staphylococcus aureus, Cowan strain-1 gene. The product is a carboxy truncated material containing 301 amino acid residues. The non-binding regions have been removed to minimise potenial steric interference.