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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106 – 120 of 5,128 results

106

MilliporeSigma™ Calbiochem™ EDTA, Disodium Salt, Dihydrate, Molecular Biology Grade

Application in Molecular Biology

Pricing & Availability

107

MilliporeSigma™ Aminopeptidase N, Rat

Levels of aminopeptidase N are elevated in cancer subjects and correlate with tumor load, and thus, enzyme is believed to play role in angiogenesis

Pricing & Availability

108

MilliporeSigma™ Calbiochem™ 5'-Deoxy-5'-methylthioadenosine

Inhibits protein carboxymethyltransferase, induces apoptosis in leukemia U937 cells.

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109

MilliporeSigma™ Calbiochem™ Sialyl Lewis x, Sodium Salt

Acts as minimal binding lig for E-selectins.

Pricing & Availability
Specifications

Content And Storage	-20°C

110

MilliporeSigma™ Aminopeptidase N (CD13), Human Serum

Prepared from human serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV

Pricing & Availability

111

MilliporeSigma™ Endopeptidase Lys-C, Achromobacter lyticus

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

Pricing & Availability

112

MilliporeSigma™ Calbiochem™ TPEN

Lipid-soluble heavy metal chelator that crosses artificial and natural membranes

Pricing & Availability

113

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

Protective agent for SH groups

Pricing & Availability
Specifications

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

114

Thermo Scientific™ CA(PEG)24 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	24 ethylene glycol units
Solubility	Water
Reactive Moiety	Amine, Carboxylic Acid, Primary Amine
Label Type	Conjugating Groups, Polyethylene Glycol (PEG)

115

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.

Pricing & Availability

116

Thermo Scientific™ CA(PEG)8 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	8 ethylene glycol units
Solubility	Water
Reactive Moiety	Amine, Carboxylic Acid, Primary Amine
Label Type	Conjugating Groups, Polyethylene Glycol (PEG)

117

MilliporeSigma™ Calbiochem™ Carboxypeptidase B, Porcine Pancreas

Native carboxypeptidase B catalyzes the release of C-terminal from basic amino acids, arginine, lysine, or ornithine from polypeptides

Pricing & Availability

118

Thermo Scientific™ MS(PEG)24 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).