Simple method for preparation of fluor/hapten-labeled dUTP.
Many projects, such as multiplex-fluorescence in situ hybridization (M-FISH) karyotyping, require the use of relatively large amounts of multiple fluor- or hapten-labeled nucleotides for the preparation of DNA probes. Such a requirement makes these experimental approaches prohibitively expensive for many researchers. The cost of such nucleotides can be reduced approximately 99% by purchasing the chemical precursors, fluor or hapten succinimidyl esters and 5-(3-aminoallyl)-2'-deoxyuridine 5' triphosphate (AA-dUTP), and performing the simple coupling/purification described here. It is possible to finish four to ten different fluor/hapten dUTP preparations of 2.5 microM scale within a 24 h period. The reagent cost for each preparation ranges from $33-$237 per microM, depending on the fluor/hapten. This laboratory uses such nucleotide preparations to prepare FISH probes by nick translation or PCR amplification.
Nimmakayalu
M
M
Yale University School of Medicine, New Haven, CT 06510, USA.
Henegariu
O
O
Ward
D C
DC
Bray-Ward
P
P
D003856:Deoxyuracil Nucleotides / Q000138:chemical synthesis*; D005453:Fluorescence; D006241:Haptens
D003856:Deoxyuracil Nucleotides; D006241:Haptens; C027078:deoxyuridine triphosphate