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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 3,802 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
Promotions Available

Thermo Scientific™ Pierce™ Cysteine-HCl

Make sulfhydryl assay standards or perform protein refolding experiments using this pure, crystalline cysteine hydrochloride (Cys-HCl).

EDGE
18

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™
19

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
20

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
21

Invitrogen™ Dithiothreitol (DTT)

Dithiothreitol (DTT)

EDGE ENCOMPASS_PREFERRED
22

Thermo Scientific™ Pierce™ Chloroacetamide, No-Weigh™ Format, 10 x 2 mg PROMO

Alkylating reagents provided in single-use, pre-weighed formats to streamline protein preparation workflows.

EDGE
23

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
24

Thermo Scientific™ MA(PEG)24 Methyl-PEG-Amine Compound

MA(PEG)n: methyl- and amine-capped polyethylene glycol compounds containing 4 to 24 PEG units; use for surface-modification and molecule-pegylation applications.

EDGE
25

Thermo Scientific™ MA(PEG)24 Methyl-PEG-Amine Compound

MA(PEG)n: methyl- and amine-capped polyethylene glycol compounds containing 4 to 24 PEG units; use for surface-modification and molecule-pegylation applications.

EDGE
Content And Storage Upon receipt store product at -20°C protected from moisture. Product is shipped at ambient temperature.
Product Type Amine Compound
Form Solid
Spacer 12 ethylene glycol units
Solubility Water
Reactive Moiety Amine, Primary Amine
Label Type Polyethylene Glycol (PEG), Blocking Groups
Chemical Reactivity Aldehyde
26

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.

EDGE
27

Thermo Scientific™ MA(PEG)4 Methyl-PEG-Amine Compound

MA(PEG)n: methyl- and amine-capped polyethylene glycol compounds containing 4 to 24 PEG units; use for surface-modification and molecule-pegylation applications.

EDGE
Content And Storage Upon receipt store product at -20°C protected from moisture. Product is shipped at ambient temperature.
Product Type Amine Compound
Form Liquid
Spacer 4 ethylene glycol units
Solubility Water
Reactive Moiety Amine, Primary Amine
Label Type Polyethylene Glycol (PEG), Blocking Groups
Chemical Reactivity Ketone
28

Invitrogen™ Thiol and Sulfide Quantitation Kit

Ultrasensitive colorimetric assay for quantifying both protein and nonprotein thiols

EDGE ENCOMPASS_PREFERRED
29

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).

EDGE
30

Thermo Scientific™ MM(PEG)24 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