Protein Modification Reagents

Thermo Scientific™ Pierce™ Human Rinovirus 3C Protease (HRV 3C) Available on GSA/VA Contract for Federal Government customers only.

Remove fusion tags from proteins with the HRV 3C cleavage sequence with this recombinant cysteine protease that is dual tagged for easy removal from the sample after cleavage.

Thermo Scientific™ Pierce™ Guanidine·HCl

Pure, crystalline guanidium hydrochloride (GdnHCl, GuHCl), CAS 50-01-1; denaturant for protein biology methods (elution, solubilization, refolding, storage).

Thermo Scientific™ Pierce™ 8M Guanidine·HCl Solution Available on GSA/VA Contract for Federal Government customers only.

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.

Thermo Scientific™ Pierce™ In-Solution Tryptic Digestion and Guanidination Kit

Alkylate and digest proteins and then guanidinate the peptide fragments for mass spectrometry (MS) using proteomics-grade trypsin, buffers and reagents.

Thermo Scientific™ NeuCode™ Lysine-080 Protein Sample Preparation Kit

Increase the level of multiplexing achievable with NeuCode™ amino acids for the metabolic labeling of proteins for mass spectrometry analysis.

Thermo Scientific™ Pierce™ Carboxy-PEG-Amine Compounds

CA(PEG)n: pegylated amino acids of the form carboxy-PEG-amine; with 4 to 24 polyethylene glycol units; for surface- and molecule-pegylation applications.

Thermo Scientific™ Pierce™ Methyl-PEG-Amine Compounds

MA(PEG)n: methyl- and amine-capped polyethylene glycol compounds containing 4 to 24 PEG units; use for surface-modification and molecule-pegylation applications.

Elastase, porcine pancreas

A serine protease that acts on elastin

Thermo Scientific™ TMTsixplex™ Isobaric Label Reagent Set

TMT™ Isobaric Mass Tagging Kits and Reagents enable multiplex quantitation of proteins extracted from cells and tissues using tandem mass spectrometry.

Thermo Scientific™ Pierce™ TFCS

Modify proteins by adding a 7-atom spacer arm with this amine-reactive (NHS ester) compound; the terminal trifluoroacetyl group can be removed to expose a new primary amine.

Thermo Scientific™ Pierce™ SAT(PEG)4

Long (18.2A), pegylated form of SATA, an amine-reactive (NHS ester) sulfhydryl-addition reagent; contains 4-unit polyethylene glycol spacer arm.

Pepstatin A, 98%

Protease inhibitor that acts on pepsin, renin and cathepsin D

Papain, Carica papaya Latex

A cysteine protease; breaks down intercellular matrix of cartilage

Thermo Scientific™ Pierce™ Citraconic Anhydride

Reversibly cap lysines and other primary amines with carboxyl groups using this amine-reactive compound; stable at pH 7 but hydrolyzes (decouples) at pH 3 to 4 (CAS 616-02-4).

Thermo Scientific™ Pierce™ Factor Xa

Protease (serine endopeptidase for prothrombin); cleaves arginine in the sequence Ile-Glu-Gly-Arg; useful for His-tagged fusion protein engineering.

Thermo Scientific™ Pierce™ Immobilized Papain Available on GSA/VA Contract for Federal Government customers only.

Generate and purify Fab fragments from antibodies with cysteine-endopeptidase papain immobilized onto beaded agarose resin.

Thermo Scientific™ WELQut Protease

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™ Pierce™ SATP

Short (4.1A), amine-reactive (NHS ester) sulfhydryl-addition reagent; creates stable (protected yet exposable) -SH group for protein crosslinking strategies.

Thermo Scientific™ Pierce™ Staphylococcus aureus V-8 Protease and Kt Available on GSA/VA Contract for Federal Government customers only.

Specifically cleave only at glutamic acid residues or cleave at both glutamic and aspartic residues with our immobilized Staphylococcus aureus V-8 protease kit.

Chymotrypsinogen A, from bovine pancreas

The zymogen of chymotrypsin

Thermo Scientific Pierce™ Premium Grade TCEP-HCl

Optimize applications where product integrity and risk minimization are paramount with our highest quality formulation of this disulfide reducing agent.

Thermo Scientific™ POROS™ MabCapture™ A/G Select

MabCapture A/G Select allows antibody purification with high dynamic binding performance at low linear flow rates and maintains superior binding capacity at high linear flow rates

Trypsin, bovine pancreas

A pancreatic serine protease

Thermo Scientific™ DSSO (disuccinimidyl sulfoxide)

MS-cleavable and membrane-permeable crosslinker that contains amine-reactive N-hydroxysuccinimide (NHS) ester at each end of a 7-carbon spacer arm.

Thermo Scientific™ Pierce™ Immobilized Pepsin Available on GSA/VA Contract for Federal Government customers only.

Generate and purify Fab and F(ab')2 fragments from antibodies with acidic endopeptidase (pepsin) immobilized onto beaded agarose resin.

Thermo Scientific™ Pierce™ Hydroxylamine·HCl

NH2OH (CAS 7803-49-8) to cleave Asn-Gly peptide bonds or deprotect sulfhydryls following S-acetylthioacetate modification with SATA reagent.

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