You searched for: Protein Linking and Labeling Systems

Supplier: Invitrogen

Sulfhydryl groups are the second most common target for modification in biological studies. They are found as exposed cysteines in protein and peptides. Sulfhydryl group biotinylation provides an advantage in some applications; for example, targeting a sulfhydryl group can help preserve the biological activity of an enzyme when amines are found at the active site.

Supplier: Invitrogen

DyLight™ PEGylated dyes display absorption spectra ranging from 550 nm to 783 nm. These reagents fluoresce over a broad pH range, are more intense than Alexa Fluor® or Cy® dyes in many applications and match the output wavelengths of common fluorescence instrumentation. Additionally, the water solubility of the DyLight™ reagents allows a high dye-to-protein ratio without precipitation during conjugation.

Supplier: Invitrogen

The DyLight™ Antibody Labeling Kits and were specifically developed for fast, efficient labeling of antibodies

Supplier: Stemcell Technologies

Amine-labeling fluorescent dye for live/dead staining of mammalian cells - 100 tests.

Supplier: Invitrogen

The carbonyl-reactive Thermo Scientific™ aminoxyTMT™ (Tandem Mass Tag™) label reagents enable multiplexed characterization and quantitation of carbonyl-containing biomolecules (carbohydrates, steroids, oxidized proteins) by mass spectrometry (MS).

Supplier: Invitrogen

Thermo Scientific DyLight Fluor Phosphine Reagents are phosphine-activated fluorescent dyes for specific labeling and detection of azide-tagged molecules, which enables use of fluorescence imaging in metabolic labeling strategies.

Supplier: Stemcell Technologies

Fluorescent dyes used to label and track lysosomes in live cells - 500 tests.

Supplier: Invitrogen

Activated peroxidase is an amine-reactive form of horseradish peroxidase (HRP) that provides coupling efficiencies of greater than 95% with antibodies and other proteins.

Supplier: Invitrogen

DyLight™ NHS Ester Quenchers are amine-reactive non-fluorescent dyes that use fluorescent resonance energy transfer (FRET) to quench fluorescent signals resulting from ultraviolet, visible and infrared light-excited fluorescent dyes

Supplier: Anaspec

Fluorescein isothiocyanate (FITC) remains one of the most popular fluorescent labeling reagents, probably due to the low cost of the material. 5-FITC and 6-FITC have very similar absorption and fluorescence spectra. However, the isomers may differ in their binding and reactivity to proteins, and the conjugates may elute under different chromatographic conditions or migrate differently in electrophoretic gels.

Supplier: Invitrogen

The amine group is the most common target for modifying protein molecules because it is abundant in the majority of proteins either due to the presence of lysine bearing amino side chain functionality or the N-terminal-amine. Amine-reactive biotinylation reagents can be divided into two groups based on water solubility: NHS-esters and sulfo-NHS-esters.

Supplier: Advanced Biomatrix

CHP can specifically bind to denatured collagen.

Supplier: Invitrogen

The methyl-PEG_n-amine (MA[PEG]_n) PEGylation reagents are methyl ether-terminated PEG amines that are used for modifying proteins or surfaces such as beads, nanoparticles and self-assembled monolayers

Supplier: AVIDITY LLC MS

The BirA biotin-protein ligase adds d-biotin covalently to biotin-acceptor peptides/proteins via an ATP intermediate (biotinyl 5'-adenylate) in a highly efficient and targeted manner.

Supplier: Invitrogen

Thermo Scientific Pierce ABC Staining Kits include reagents for the avidin-biotin complex (ABC) technique, a highly sensitive method for immunohistochemical detection with biotinylated secondary antibodies.

Supplier: Bulldog Bio

Novel Antibody Fragment that binds GFP Fusion Proteins.

Supplier: Invitrogen

Cross linkers are used for the identification of near-neighbor protein relationships and ligand-receptor interactions.

Supplier: Invitrogen

Eliminate soluble components and reduce disulfide bonds without sacrificing valuable protein or peptide samples.

Supplier: Surmodics

StabilZyme® HRP, StabilZyme® Protein-Free and StabilZyme® NOBLE stabilizers provide the assay developer a complete set of tools to stabilize different HRP conjugates for long term, in-solution stability.

Supplier: Anaspec

AMCA-X, SE is one of the most popular blue fluorescent tagging molecules. It is widely used to label antibodies, proteins and small drug molecules. AMCA-X succinimidyl ester contains a seven-atom aminohexanoyl spacer between the fluorophore and the reactive group.

Supplier: Surmodics

StabilZyme® HRP, StabilZyme® Protein-Free and StabilZyme® NOBLE stabilizers provide the assay developer a complete set of tools to stabilize different HRP conjugates for long term, in-solution stability.

Supplier: Invitrogen

Pierce™ Dye Removal Columns enable fast and efficient removal of non-reacted fluorescent dyes from protein labeling reactions.

Supplier: Stemcell Technologies

Amine-labeling fluorescent dye for live/dead staining of mammalian cells - 100 tests.

Supplier: Invitrogen

Introduce free sulfhydryl groups into a protein of interest to allow the modified protein to react with a variety of sulfhydryl-selective products.

Supplier: Surmodics

StabilZyme® AP and StabilZyme® Protein-Free AP stabilizers provide assay developers a complete set of tools to stabilize different AP conjugates for long term, in-solution stability.

Supplier: Invitrogen

The amine group is the most common target for modifying protein molecules because it is abundant in the majority of proteins either due to the presence of lysine bearing amino side chain functionality or the N-terminal-amine. Amine-reactive biotinylation reagents can be divided into two groups based on water solubility: NHS-esters and sulfo-NHS-esters.

Supplier: Invitrogen

Cross linkers are used for the identification of near-neighbour protein relationships and ligand-receptor interactions. Homobifunctional, amine-reactive NHS esters or imidates, and heterobifunctional, amine-reactive, photoactivatable phenyl azides are the most commonly used crosslinkers for these applications.

Supplier: Surmodics

The StabilZyme® SELECT Stabilizer is a multi-purpose stabilizing solution designed to maintain the conformation of antibody/antigen conjugates, antibody coated particles and unmodified proteins that are commonly used in immunoassays. Adding the conjugate/protein directly into the SELECT Stabilizer allows for stable storage of the conjugate at a working concentration and eliminates the need for subsequent dilutions.

Supplier: Anaspec

Biotin, SE is amino-reactive biotinylating reagent for peptides and proteins; it has a better avidin-binding affinity than biotin. Biotin, SE (d-Biotin-N-hydroxysuccinimide ester, Biotin, NHS ester) contains a five-carbon spacer arm that reduces steric hindrance associated with binding four biotinylated molecules per one avidin and results in enhanced detection sensitivity.

Supplier: Invitrogen

Cross linkers are used for the identification of near-neighbor protein relationships and ligand-receptor interactions.