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Protein Labeling Reagents

Various reagents designed to selectively label target proteins. Products include classic dyes, radioisotope labels, biotinylation reagents, fluorescent labels, molecular probes, assays, and labeling kits.
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181 – 195 of 2,638 results
181

Molecular Probes™ pHrodo™ Green Maleimide

pHrodo™ Green Maleimide

ENCOMPASS_PREFERRED
182

Thermo Scientific™ EZ-Link™ Maleimide-PEG2-Biotin, No-Weigh™ Format

Biotinylate reduced cysteines with this short, maleimide-activated, sulfhydryl-reactive biotinylation reagent containing a 2-unit PEG spacer arm to enhance water solubility.

Cell Permeability Cell-Impermeant
Product Type Maleimide-PEG2-Biotin
Label or Dye Biotin
Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide),Water
Reactive Moiety Maleimide
Chemical Reactivity Thiol
Product Line EZ-Link™
183

Molecular Probes™ Biocytin (ε-Biotinoyl-L-Lysine)

Biocytin (ε-Biotinoyl-L-Lysine)

ENCOMPASS_PREFERRED
184

Invitrogen™ Click-IT™ L-Homopropargylglycine (HPG)
GREENER_CHOICE

Less hazardous technique for the detection of nascent protein synthesis

ENCOMPASS_PREFERRED
185

Molecular Probes™ Biocytin Hydrazide

biocytin hydrazide

ENCOMPASS_PREFERRED
186

Thermo Scientific™ EZ-Link™ NHS-Biotin

Biotinylate protein amines (e.g., lysines) with a simple, short (13.5A), NHS-ester biotinylation reagent containing a membrane-permeable spacer arm for intracellular labeling.

187

Molecular Probes™ Biotin-4-Fluorescein

Biotin-4-fluorescein can be used to quantitate available biotin-binding sites or the concentration of avidin or streptavidin through the strong quenching associated when this molecule binds to avidin.

ENCOMPASS_PREFERRED
188

Molecular Probes™ Alexa Fluor™ 514 NHS Ester (Succinimidyl Ester)

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 514 dye is water soluble and pH-insensitive from pH 4 to pH 10.

ENCOMPASS_PREFERRED
189

Molecular Probes™ Alexa Fluor™ 488 Hydrazide

Alexa Fluor™ 488 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

ENCOMPASS_PREFERRED
190

Thermo Scientific™ EZ-Link™ Amine-PEG3-Biotin

Biotinylate proteins or surfaces using EDC or other amine-reactive crosslinkers with a mid-length (22.9A) biotinylation reagent containing a 3-unit polyethylene glycol spacer.

191

Molecular Probes™ 6-FAM (6-Carboxyfluorescein), single isomer

6-FAM (6-Carboxyfluorescein), single isomer

ENCOMPASS_PREFERRED
192

Molecular Probes™ Alexa Fluor™ 555 Cadaverine

Alexa Fluor™ 555 Cadaverine is useful as a polar tracer and as a reactive dye for labeling proteins via a carboxylic acid moiety.

ENCOMPASS_PREFERRED
193

Molecular Probes™ Iodoacetamide Alkyne

Iodoacetamide Alkyne

ENCOMPASS_PREFERRED
194

Invitrogen™ Click-IT™ ManNAz Metabolic Glycoprotein Labeling Reagent (tetraacetylated N-Azidoacetyl-D-Mannosamine)
GREENER_CHOICE

Simple and robust two-step technique

ENCOMPASS_PREFERRED
195

Invitrogen™ Alexa Fluor™ 430 NHS Ester (Succinimidyl Ester)

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 430 dye is water soluble and pH-insensitive from pH 4 to pH 10.

ENCOMPASS_PREFERRED