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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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46 – 60 of 4,960 results
46

Thermo Scientific™ Pierce™ Immobilized Reductant Column, 2 mL

Efficiently reduce protein or peptide disulfide bonds with this reusable column on with an immobilized thiol-based reducing agent for solid-phase disulfide bond reduction.

47

Thermo Scientific Chemicals Trypsin 1:250, porcine pancreas

CAS: 7-7-9002 Molecular Formula: C35H47N7O10 Synonym: EC 3.4.21.4

CAS 7-7-9002
Synonym EC 3.4.21.4
Molecular Formula C35H47N7O10
48

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.

49

Thermo Scientific™ Pierce™ Iodoacetic Acid

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

50

Thermo Scientific Chemicals Trypsin, porcine pancreas

CAS: 7-7-9002 Molecular Formula: C35H47N7O10 Synonym: EC 3.4.21.4; Trypsin IV porcine

CAS 7-7-9002
Synonym EC 3.4.21.4; Trypsin IV porcine
Molecular Formula C35H47N7O10
51

Thermo Scientific Chemicals Elastase, porcine pancreas

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

CAS 39445-21-1
Synonym E.C. 3.4.21.36; Pancreatopeptidase E
52

Thermo Scientific Chemicals Pepsin from Porcine Stomach

Derived from Porcine stomach

CAS 9001-75-6
Product Type Pepsin
Synonym EC 3.4.23.1,Pepsin A
53

Thermo Scientific Chemicals Elastase, porcine pancreas aqueous suspension

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

CAS 39445-21-1
Synonym E.C. 3.4.21.36; Pancreatopeptidase E
54

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.

55

MilliporeSigma™ Calbiochem™ BAPTA/AM

Can be loaded into wide variety of cells, where it is hydrolyzed by cytosolic esterases and is trapped intracellularly as the active chelator BAPTA

Membrane Permeable Y
Content And Storage -20°C
CAS 126150-97-8
Product Type Calbiochem BAPTA/AM
Form Solid
Solubility DMSO
Purity ≥90% by TLC
Synonym 1,2-bis(o-Aminophenoxy)ethane-N,N,Nʹ,Nʹ-tetraacetic Acid Tetra(acetoxymethyl) Ester
56

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

57

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.

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)
58

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.

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)
59

Thermo Scientific™ Pierce™ HRV 3C Protease Solution Kit (2 units/μL)
GSA_VA

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.

Content And Storage Store at -20°C.
Product Type Protease
Form Kit
Product Line Pierce
60

MilliporeSigma™ Calbiochem™ Coenzyme A, Trilithium Salt

Serves as cofactor in enzymatic acetyl transfer reactions