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.

Search Within Results

76 – 90 of 5,128 results

Thermo Scientific™ CA(PEG)12 Carboxy-PEG-Amine Compound

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.

Pricing & Availability
Specifications

Content And Storage	Store desiccated at 4°C. Shipped at ambient temperature.
Product Type	Amine Compound
Spacer	12 ethylene glycol units
Solubility	Water
Reactive Moiety	Amine, Carboxylic Acid, Primary Amine
Label Type	Conjugating Groups, Polyethylene Glycol (PEG)

Thermo Scientific™ CA(PEG)4 Carboxy-PEG-Amine Compound

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.

Pricing & Availability
Specifications

Content And Storage	Store desiccated at 4°C. Shipped at ambient temperature.
Product Type	Amine Compound
Spacer	4 ethylene glycol units
Solubility	Water
Reactive Moiety	Amine, Carboxylic Acid, Primary Amine
Label Type	Conjugating Groups, Polyethylene Glycol (PEG)

MilliporeSigma™ Calbiochem™ Coenzyme A, Trilithium Salt

Serves as cofactor in enzymatic acetyl transfer reactions

Pricing & Availability

Thermo Scientific™ NeuCode™ Lysine-080

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

Pricing & Availability
Specifications

Product Type	Lysine
Final Product Type	Molecule
Label Type	Mass Isotopes of Amino Acids

MP Biomedicals™ Thrombin, Bovine

Thrombin, Bovine is the final coagulation protease in regard to hemostasis, promoting both procoagulant and anticoagulant effects.

Pricing & Availability

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).

Pricing & Availability
Specifications

Content And Storage	Store desiccated at -20°C.
Product Type	NHS-Ester Reagent
Form	Solid
Spacer	4 ethylene glycol units
Solubility	Water
Reactive Moiety	Active Ester, Succinimidyl Ester, NHS Ester
Label Type	Polyethylene Glycol (PEG), Blocking Groups
Chemical Reactivity	Amine
Product Line	Pierce

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

Pricing & Availability

Thermo Scientific Chemicals Elastase, porcine pancreas aqueous suspension

CAS: 39445-21-1 Synonym: E.C. 3.4.21.36; Pancreatopeptidase E

Pricing & Availability
Specifications

CAS	39445-21-1
Synonym	E.C. 3.4.21.36; Pancreatopeptidase E

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.