申请人:Haugland Richard P.
公开号:US20110117659A1
公开(公告)日:2011-05-19
Novel fluorescent derivitization reagents are described that are suitable for coupling to biomolecules that contain aldehyde or ketone functional groups. In one embodiment is provided reagents that have the following formula:
wherein Q is carbonyl, thiocarbonyl, or sulfonyl, and R
5
is -L-Z; L is arylene, or a C
1-6
perfluoroalkylene, or a single covalent bond; Z is a carbonyl hydrazide, hydrazide, sulfonyl hydrazide, or a thiocarbonyl hydrazide; R
11
-R
14
are independently H, C
1-6
alkyl, C
1-6
alkoxy, C
1-6
perfluoroalkyl, C
1-6
alkylamino, di(C
2-12
-alkyl)amino, amino, carboxy, cyano, halogen, hydroxy, nitro, phenyl, or sulfo; and R
21
-R
24
are independently H, C
1-6
alkyl, C
1-6
alkoxy, C
1-6
perfluoroalkyl, C
1-6
alkylamino, di(C
2-12
-alkyl)amino, amino, carboxy, cyano, halogen, hydroxy, nitro, phenyl, sulfo, or -L-Z. The method of treating a sample with the derivativization reagents is described. The reagents are particularly useful for labeling glycoproteins or glycopeptides, nucleic acids, and lipopolysaccharides in electrophoresis gels.