Labelling

This phosphoramidite is used for synthesis of oligonucleotides 5’-labeled with TAMRA. TAMRA (carboxytetramethylrhodamine) is a xanthene dye from the rhodamine family with emission in the orange spectrum range (maximum at 563 nm).

TET phosphoramidite for synthesis of fluorescently labeled oligonucleotides, pure 6-isomer. TET (tetrachlorofluorescein) is a green-fluorescent fluorescein derivate (absorption maximum at 519 nm, emission maximum at 535 nm).

VIC is an asymmetrical xanthene dye (two flanking rings are not the same). This dye is used for the design of qPCR probes. The spectral properties of VIC are similar to HEX and JOE.

Perylene is a bright and extremely photostable fluorescent polycyclic aromatic hydrocarbon (PAH) label with a quantum yield approaching quantitative. Due to the low lifetime of fluorescence, this probe does not form excimers.With this phosphoramidite, perylene can be introduced into DNA by automated oligonucleotide synthesis.

Pyrene is a polycyclic aromatic hydrocarbon that is well-known for its ability to intercalate into DNA. Pyrene features intense blue fluorescence. Its parameters depend strongly on the fluorophore microenvironment. Therefore, fluorescence spectra of pyrene are used for the extraction of structural information about the site surrounding pyrene.

BP Fluor 488 TCO reacts with tetrazines to produce a stable, covalent linkage, also referred to as the inverse-electron demand Diels-Alder cycloaddition reaction. This reaction is extremely fast (k > 800 M-1 s-1), selective, biocompatible, and does not require Cu-catalyst or elevated temperatures. Such excellent reaction rate constants are unparalleled by any other bioorthogonal reaction pair described to date.

BP Fluor 488 Biotin can be used for detecting and quantifying biotin binding sites of avidin, streptavidin or neutravidin. This reagent overcomes major shortcomings of commonly used Biotin-4-fluorescein – poor solubility in aqueous media and pH dependent absorbance and emission. BP Fluor 488 is a bright, and highly photostable, green-fluorescent probe optimally excited by the 488 nm laser line. This probe is water-soluble and its fluorescence is pH independent over a wide pH range. The brightness and photostability of blue dyes are best suited to direct imaging of low-abundance targets. BP Fluor 488 is structurally identical to Alexa Fluor® 488 Azide. Its absorption/emission spectra is a perfect match to spectra of many other fluorescent dyes based on sulfonated rhodamine 110 core, including DyLight® 488, Alexa Fluor® 488 and CF® 488 Dye.

BP Fluor 594 Biotin is a chemical reagent containing the BP Fluor 594 dye and a biotin group. Biotin is an affinity ligand and it is used in biochemical applications such as pull-down assays or for ligating with streptavidin proteins. BP Fluor 594 is a red fluorescent dye with excitation and emission maxima at 590 nm and 617 nm respectively.

Water-soluble, substrate for sortase mediated labeling of proteins. Sortase catalyzes a transpeptidase reaction between a specific internal sequence of a protein and an amine group present on the N-terminus of triglycine recently has become an area of great interest. This method of labeling proteins has been denoted as “Sortagging”. BP Fluor 488 Gly-Gly-Gly is a water-soluble, pH-insensitive from pH 4 to pH 10, green-fluorescent probe. Its excitation ideally suited for the 488 nm laser lines. BP Fluor 488 is structurally identical to Alexa Fluor® 488.