Quenched Peptides / FRET Peptides

Internally Quenched Peptides / FRET Peptides

JPT’s internally quenched peptides or FRET peptides are guaranteed to be free of fluorescent impurities. The most frequently used dye/quencher combinations and common attachment options are shown below.

Fluorophore	Quencher	Excitation / Emission Wavelength
Abz 2-Aminobenzoyl	Dnp 2,4-dinitrophenyl	320 nm 420 nm
Abz 2-Aminobenzoyl	NitroTyr 3-nitro-tyrosine	320 nm 420 nm
Mca 7-Methoxycoumarin-4-yl)acetyl	Dnp 2,4-dinitrophenyl	325 nm 392 nm
Trp Tryptophan	Dnp 2,4-dinitrophenyl	280 nm 360 nm
EDANS 5-[(2-Aminoethyl) amino] naphthalene-1-sulfonic acid	Dabcyl 4-([4'-dimethylamino)phenyl]azo)benzoyl	340 nm 490 nm
FAM Carboxyfluorescein	Dabcyl 4-([4'-dimethylamino)phenyl]azo)benzoyl	492 nm 517 nm
Lucifer Yellow	Dabsyl 4-(Dimethylamino)azobenzene-4'-sulfonyl	430 nm 520 nm