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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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1 – 15 of 298 results
1

Thermo Scientific™ Alexa Fluor™ 420 NHS Ester (Succinimidyl Ester)
GREENER_CHOICE

Alexa Fluor 420 NHS Ester is an amine-reactive dye optimized for multiplex IHC and spatial biology. A long Stokes shift and 420/500 ex/em make it a good match for the CFP filter.

4

Atto 565 NHS Ester BioReagent, Suitable for Fluorescence, 70% (Coupling to Amines), MilliporeSigma™ Supelco™

Fluorescence of bioconjugates; employed in fluorescence resonance energy transfer, FRET, experiments.

Content And Storage -20°C
9

Thermo Scientific™ EZ-Link™ Iodoacetyl-PEG2-Biotin

Biotinylate reduced cysteines (-SH groups) at high pH with this haloacetyl-activated, sulfhydryl-reactive biotinylation reagent containing polyethylene glycol for solubility.

10

Thermo Scientific™ Pierce™ Dye Removal Columns

Affinity resin with spin columns to quickly bind and remove excess fluorescent dye from antibody (protein) solutions following labeling reactions.

11

Thermo Scientific™ EZ-Link™ Amine-PEG11-Biotin

Biotinylate proteins or surfaces using EDC or other amine-reactive crosslinkers with this long (53.2A) biotinylation reagent containing an 11-unit polyethylene glycol spacer.

12

Thermo Scientific™ EZ-Link™ Alkoxyamine-PEG12-Biotin

Biotinylate glycoproteins (aldehydes of oxidized sugars) with a very long (55.4A), pegylated biotinylation reagent containing a 12-unit PEG spacer for length and solubility.

13

Thermo Scientific™ HABA (4'-hydroxyazobenzene-2-carboxylic acid)

A colored, biotin assay reagent HABA (4'-hydroxyazobenzene-2-carboxylic acid) to measure biotinylation levels of biotinylated antibodies or proteins.

14

Thermo Scientific™ Pierce™ Iodination Beads

Easily and gently label (iodinate) proteins and peptides with iodine-125 using reagent-coated polystyrene beads that can be removed following reaction.

15

Thermo Scientific™ Sulfo-SHPP (Water-Soluble Bolton-Hunter Reagent)

Add tyrosine (tyrosyl) groups to proteins to increase the number of iodine-125 labeling (iodination) sites using an amine-reactive, NHS ester compound.