Protein Modification Reagents
Thermo Scientific™ Proteinase K Powder (≥30 U/mg)
Cleave at the carboxyl-side of aliphatic, aromatic or hydrophobic residues and digest-inactivate DNase and RNase in nucleic acid purification using this protease.
Invitrogen™ DTT, 1M
DTT, 1M
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™ Urea
Pure, crystalline urea (CH4N2O), CAS 57-13-6; denaturant with low UV-absorptivity for protein biology methods (elution, solubilization, refolding, storage).
MilliporeSigma™ Calbiochem™ SPUTOLYSIN™ Reagent
Intended for isolation of epithelial cells, pathogenic or saprophytic bacteria, fungi, and yeasts from sputum
Thermo Scientific™ Pierce™ Alkylating Reagents
Alkylating reagents provided in single-use, pre-weighed formats to streamline protein preparation workflows.
MilliporeSigma™ Calbiochem™ Sorbitol
Produced by reduction of glucose
MilliporeSigma™ Calbiochem™ Thrombospondin, Human Platelets
Blocks FGF-induced neovascularization of rat cornea.
Thermo Scientific™ Immobilized Trypsin, TPCK Treated (Agarose Resin)
Cleave the carboxyl-side of Arg and Lys residues with trypsin that isTPCK-treated to block chymotrypsin activity; its immobilized form allows enzyme removal after digestion.
Thermo Scientific™ TMS(PEG)12 Branched Methyl-PEG-NHS-Ester Reagent
A three-branched, polyethylene glycol compound (3 times 12 PEG units) activated as an NHS ester for covalent PEGylation of primary amines on proteins or assay surfaces.
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™ Pierce™ TCEP-HCl, No-Weigh™ Format
Reduce protein and peptide disulfide bonds using this thiol-free, pure, crystalline tris (2-carboxyethyl) phosphine hydrochloride, TCEP (CAS 5961-85-3).
MilliporeSigma™ Aminopeptidase M, Porcine Kidney
Useful in peptide sequencing
MilliporeSigma™ Chymotrypsin, Human Pancreas
Prepared from tissue of individuals that have been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV
MilliporeSigma™ Proteinase K, Lyophilized
Highly active serine protease that exhibits broad cleavage specificity on native and denatured proteins and is widely used in the purification of DNA and RNA