Protein Modification Reagents
Protein Modification Reagents
Thermo Scientific™ Pierce™ Immobilized TCEP Disulfide Reducing Gel
Efficiently reduce protein or peptide disulfide bonds with this stable, odorless, beaded agarose resin on which Tris (2-carboxyethyl) phosphine is immobilized.
Promotions are available
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.
Promotions are available
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.
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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.
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Thermo Scientific™ Pierce™ NEM (N-ethylmaleimide)
Small, sulfhydryl-reactive (maleimide) compound to permanently block reduced cysteines of proteins or peptides to prevent disulfide bond formation.
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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.
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Molecular Probes™ Tris-(2-Carboxyethyl)phosphine, Hydrochloride (TCEP)
Tris-(2-Carboxyethyl)phosphine, Hydrochloride (TCEP)
Promotions are available
Thermo Scientific™ Bond-Breaker™ TCEP Solution, Neutral pH
Efficiently reduce protein disulfide bonds with this stable, odorless, 0.5M solution of TCEP reducing agent that is ideal for making reducing SDS-PAGE sample buffers.
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Thermo Scientific™ 8M Guanidine-HCl Solution
Ready-to-use, 8M solution of guanidinium hydrochloride (GdnCl, GuHCl), CAS 50-01-1; dilute and pH-adjust to any concentration for protein biology methods.
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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).
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Thermo Scientific™ Pierce™ SATA (N-succinimidyl S-acetylthioacetate)
Short (2.8A), amine-reactive (NHS ester) sulfhydryl-addition reagent; creates stable (protected yet exposable) -SH group for protein crosslinking strategies.
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Thermo Scientific™ Pierce™ 2-Mercaptoethanol
Pure, liquid (equals 14M), beta-mercaptoethanol (bME, 2BME, 2-ME, b-mer), CAS 60-24-2; thiol reducing agent for cleaving protein disulfide bonds (cystines cysteines).
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Thermo Scientific™ Pierce™ DTT (Dithiothreitol), No-Weigh™ Format
Thermo Scientific™ Pierce™ DTT (Dithiothreitol) No-Weigh™ Format is designed for convenient preparation of stocks that will be added to protein samples for effective reduction of disulfide bonds.
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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).
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