Protein Modification Reagents
Thermo Scientific™ GlycoLink™ Coupling Catalyst
Enhance aldehyde-hydrazide crosslinking efficiency for glycoprotein immobilization and conjugation with analine (CAS 62-53-3) and an optimized buffer system.
Thermo Scientific™ WELQut Protease (5 U/μL)
Thermo Scientific™ WELQut Protease is a highly specific serine protease cleaving outside the WELQX recognition motif to remove N-terminal protein fusion tags.
Thermo Scientific™ MT(PEG)4 Methyl-PEG-Thiol Compound
MT(PEG)n: methyl and sulfhydryl compound with a 4-unit polyethylene glycol (PEG) spacer; methylate and pegylate quantum dots, gold surfaces, silver.
Thermo Scientific™ MS(PEG)4 Methyl-PEG-NHS-Ester Reagent
Pegylate amines (-NH2 groups) on proteins (lysine residues) or assay surfaces using MS(PEG)n, amine-reactive (NHS ester), methyl-capped PEG compounds (4 to 24 EG units).
Thermo Scientific™ MS(PEG)12 Methyl-PEG-NHS-Ester Reagent
Pegylate amines (-NH2 groups) on proteins (lysine residues) or assay surfaces using MS(PEG)n, amine-reactive (NHS ester), methyl-capped PEG compounds (4 to 24 EG units).
Thermo Scientific™ MS(PEG)8 Methyl-PEG-NHS-Ester Reagent
Pegylate amines (-NH2 groups) on proteins (lysine residues) or assay surfaces using MS(PEG)n, amine-reactive (NHS ester), methyl-capped PEG compounds (4 to 24 EG units).
Thermo Scientific™ DTNB (Ellman's Reagent) (5,5-dithio-bis-(2-nitrobenzoic acid)
Measure peptide cysteines or other free, reduced sulfhydryls (-SH groups) in solution using this thiol-reactive, colored compound (Amax 412nm).
Thermo Scientific™ Trypsin, TPCK Treated
Thermo Scientific Pierce TPCK Trypsin is a serine endoprotease that is applicable to amino acid analysis and protein sequencing, mapping and structural studies; the immobilized form allows sample separation after treatment.
Thermo Scientific™ Guanidine-HCl
Pure, crystalline guanidium hydrochloride (GdnHCl, GuHCl), CAS 50-01-1; denaturant for protein biology methods (elution, solubilization, refolding, storage).
Thermo Scientific™ Pierce™ DTT (Dithiothreitol)
Reduce disulfides in biological buffers and sample loading buffers with pure, crystalline dithiothreitol (DTT), the most popular protein disulfide reducing agent.
Thermo Scientific Chemicals Papain, Carica Papaya Latex
CAS: 9001-73-4 Synonym: EC 3.4.22.2
Thermo Scientific™ Pierce™ Traut's Reagent (2-iminothiolane)
2-Iminothiolane-HCl (CAS 4781-83-3); an amine-reactive thiolation reagent to cap protein primary amines with sulfhydryl groups for immediate crosslinking.
Thermo Scientific™ Immobilized Pepsin (Agarose Resin)
Generate and purify Fab and F(ab')2 fragments from antibodies with acidic endopeptidase (pepsin) immobilized onto beaded agarose resin.
Thermo Scientific™ Pierce™ Sulfo-NHS-Acetate
Amine-reactive (NHS ester) compound to permanently block primary amines (e.g., protein lysine side chains) to prevent interactions or later conjugation.