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Protein Modification Reagents

Chemical agents used to modify the amino acid side chains of proteins in order to alter their native charges, block or expose reactive binding sites, inactivate functional groups, and change functional groups to create targets for crosslinking and labeling.
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1 – 15 of 121 results
1

Thermo Scientific™ Pierce™ Sulfhydryl Addition Kit

Modify protein primary amines to create free sulfhydryl groups for labeling, crosslinking or immobilization techniques; complete kit with SATA reagent and hydroxylamine.

3

MilliporeSigma™ Calbiochem™ Cleland’s Reagent, ULTROL™ Grade

Protective agent for SH groups

Content And Storage 2°C to 8°C
CAS 12-3-3483
Product Type Calbiochem Cleland’s Reagent
Form Solid
Molecular Weight (g/mol) 154.24
Solubility EtOH, Water
Purity ≥99% by titration
Synonym Dithiothreitol, DTT
Molecular Formula C4H10O2S2
4

Thermo Scientific Chemicals Papain, Carica Papaya Latex

CAS: 9001-73-4 Synonym: EC 3.4.22.2

CAS 9001-73-4
Synonym EC 3.4.22.2
5

MilliporeSigma™ Calbiochem™ Sialyl Lewis x, Sodium Salt

Acts as minimal binding lig for E-selectins.

Content And Storage -20°C
6

MilliporeSigma™ Calbiochem™ Cleland’s Reagent, Molecular Biology Grade

Protective agent for SH groups

Content And Storage 2°C to 8°C
CAS 12-3-3483
Product Type Calbiochem Cleland’s Reagent
Form Crystalline Solid
Molecular Weight (g/mol) 154.24
Solubility EtOH, Water
Purity ≥99% by titration
Synonym 1,4-Dithiothreitol, DTT
Molecular Formula C4H10O2S2
7

MilliporeSigma™ Calbiochem™ Caffeic Acid

Reported to have anti-carcinogenic anti-inflammatory properties.

8

Thermo Scientific™ MA(PEG)24 Methyl-PEG-Amine Compound

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

9

MilliporeSigma™ Novagen™ Overnight Express™ Autoinduction System 1

Induces protein expression without monitoring cell density.

Content And Storage 15°C to 30°C
10

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.

11

MilliporeSigma™ Dipeptidylpeptidase IV, His·Tag™, Human, Recombinant, S. frugiperda

Inhibition of DPPIV has been reported to be effective treatment for type II diabetes

13

MilliporeSigma™ Endoproteinase Asp-N, Excision Grade, Pseudomonas fragi

Designed for protein sequencing or sequence verification, analysis of protein structural domains, and cleavage of fusion proteins

14

MilliporeSigma™ Endoproteinase Lys-C, Sequencing Grade, Lysobacter enzymogenes

Designed for protein sequencing or sequence verification, analysis of protein structural domains, and cleavage of fusion proteins

15

MilliporeSigma™ Endopeptidase Lys-C, Achromobacter lyticus

Specifically hydrolyzes amide and peptide ester bonds at carboxylic side of lysine and S-aminoethylcysteine residues