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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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61 – 75 of 2,844 results
61

Thermo Scientific™ Pierce™ Iodoacetic Acid

Get rapid carboxymethylation of reduced cysteine residues with Thermo Scientific™ Pierce™ Iodoacetic Acid and Iodoacetamide.

62

Thermo Scientific™ Pierce™ Mercaptoethylamine-HCl

Pure, crystalline 2-aminoethanethiol (2-MEA-HCl, also called cysteamine-HCl), CAS 156-57-0; selectively reduces antibody hinge-region disulfide bonds.

63

MilliporeSigma™ Proteinase K, Lyophilized
GSA_VA

Highly active serine protease that exhibits broad cleavage specificity on native and denatured proteins and is widely used in the purification of DNA and RNA

Content And Storage 2°C to 8°C
CAS 39450-01-6
Product Type Proteinase K
64

MilliporeSigma™ Proteinase K Solution, 600mAU/mL

Efficient removal of proteins from nucleic acid solutions

Content And Storage -20°C
Product Type Proteinase K
65

MilliporeSigma™ Novagen™ Overnight Express™ Autoinduction System 2

Used for expression of proteins in multiple cultures.

Content And Storage Multiple storage requirements
66

MilliporeSigma™ HRV 3C Protease

Highly efficient fusion tag removal at low temperature

68

MilliporeSigma™ β-Lactamase, Bacillus cereus 569/H9

Useful for assaying penicillins and cephalosporins

69

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

Protective agent for SH groups

Content And Storage 2°C to 8°C
CAS 3483-12-3
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
70

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

Protective agent for SH groups

Content And Storage 2°C to 8°C
CAS 3483-12-3
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
71

MilliporeSigma™ Calbiochem™ Coenzyme A, Trilithium Salt

Serves as cofactor in enzymatic acetyl transfer reactions

74

MilliporeSigma™ Endopeptidase Lys-C, Achromobacter lyticus

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

75

MP Biomedicals™ Protease (S. Aureus) V.8

Protease (S. Aureus) V.8, also called endoproteinase Glu-C, Glu-C protease, staphylococcal serine proteinase. Widely used for protein sequencing, this enzyme specifically cleaves peptide bonds on the COOH terminal side of either aspartic or glutamic acids.