Succinimidyl esters (SE, also known as NHS esters) react with primary amines such as lysine residues in proteins. SE dyes are commonly used for labeling proteins and antibodies. The reaction requires basic pH for target amines to be reactive, and is usually performed in pH 8.3 sodium bicarbonate buffer.
We offer more than 25 colors of our bright and photostable CF® Dye SE and easy-to-use CF® Dye Labeling Kits, as well as a wide variety of other amine-reactive dyes and biotinylation reagents below. Biotium’s CF® Dye SE are more resistant to hydrolysis than other SE, resulting in excellent reaction efficiency.
Amyloid & Neurodegeneration StainsAntibody & Protein Labeling KitsApoptosis & Viability AssaysBuffers, Accessories, & Background ReducersCalcium Indicators & ChelatorsCancer ResearchCell & Organelle StainsCell Cycle AnalysisChromogenic SubstratesDNA Gel Stains & AccessoriesEnzyme SubstratesEquipmentFlow CytometryFluorescence MicroscopyFluorescent Proteins, Nucleotides & Other ConjugatesHRP & Alkaline Phosphatase ConjugatesIn Vivo ImagingLuciferase Reporter Gene AssaysMagnesium, Chloride, pH, Zinc & Other IndicatorsMicrobiologyNeuroscienceNuclear CounterstainsNucleic Acid Quantitation & ExtractionOther qPCR ReagentsPCR & DNA AmplificationPrimary AntibodiesqPCR DyesqPCR Master MixesReactive CF® Dyes, Other Reactive Dyes & Biotinylation ReagentsReagents for Nitric Oxide (NO) & Reactive Oxygen Species (ROS)Secondary Antibodies, Anti-Tag Antibodies, & Streptavidin ConjugatesSuper-Resolution ImagingWestern & Protein Analysis