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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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16 – 30 of 5,669 results
16

Invitrogen™ DTNB; Ellman's Reagent, 5,5'-Dithiobis-(2-Nitrobenzoic Acid)

DTNB; Ellman's Reagent, 5,5'-Dithiobis-(2-Nitrobenzoic Acid)

EDGE ENCOMPASS_PREFERRED
17

Thermo Scientific™ Pierce™ Premium Grade TCEP-HCl

Optimize applications where product integrity and risk minimization are paramount with our highest quality formulation of this disulfide reducing agent.

EDGE
Content And Storage Upon receipt store product at room temperature in sealed container to prevent oxidation. Product is shipped at ambient temperature.
Product Type Disulfide Reducing Reagent
Product Line Pierce
18

Invitrogen™ Thiol and Sulfide Quantitation Kit

Ultrasensitive colorimetric assay for quantifying both protein and nonprotein thiols

EDGE ENCOMPASS_PREFERRED
19

Thermo Scientific™ MT(PEG)4 Methyl-PEG-Thiol Compound

MT(PEG)n: methyl and sulfhydryl compound with a 4-unit polyethylene glycol (PEG) spacer; methylate and pegylate quantum dots, gold surfaces, silver.

EDGE
20

Thermo Scientific™ TMS(PEG)12 Branched Methyl-PEG-NHS-Ester Reagent

A three-branched, polyethylene glycol compound (3 times 12 PEG units) activated as an NHS ester for covalent PEGylation of primary amines on proteins or assay surfaces.

EDGE
21

Thermo Scientific™ MS(PEG)12 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).

EDGE
Content And Storage Store desiccated at -20°C.
Product Type NHS-Ester Reagent
Spacer 12 ethylene glycol units
Solubility Water
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Label Type Polyethylene Glycol (PEG), Blocking Groups
Chemical Reactivity Amine
22

Invitrogen™ ZOOM™ Urea

The ZOOM™ IEF Fractionator offers a fast, reliable method to reduce sample complexity, enrich low abundance proteins, and increase the dynamic range of detection.

EDGE ENCOMPASS_PREFERRED
23

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.

EDGE
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)
24

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.

EDGE
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)
25

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).

EDGE
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
26

Thermo Scientific™ MS(PEG)8 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).

EDGE
27

Thermo Scientific™ GlycoLink™ Coupling Catalyst

Enhance aldehyde-hydrazide crosslinking efficiency for glycoprotein immobilization and conjugation with analine (CAS 62-53-3) and an optimized buffer system.

EDGE
28

Thermo Scientific™ MM(PEG)12 Methyl-PEG-Maleimide Reagent

Pegylate sulfhydryls (-SH groups) on proteins (cysteine residues) or assay surfaces using MS(PEG); sulfhydryl-reactive (maleimide), PEG compounds (12 and 24 EG units).

EDGE
29

Thermo Scientific™ Pierce™ Sodium meta-Periodate

Gently oxidize glycoprotein carbohydrate sugars to create reactive aldehydes (carbonyls) for crosslinking and immobilization using NaIO4 (CAS 7790-28-5).

EDGE
30

Thermo Scientific™ Pierce™ SAT(PEG)4 (PEGylated N-succinimidyl S-acetylthioacetate)

Long (18.2A), pegylated form of SATA, an amine-reactive (NHS ester) sulfhydryl-addition reagent; contains 4-unit polyethylene glycol spacer arm.

EDGE