Mixed-mode fluorescent DNA sequencing.

Fluorescence-based, automated DNA sequences represent one of the major advances in recent molecular biology. Two main technologies have been developed in this field: the single-label/four-lane system and the four-label/one-lane system. The following present the use of single-label-sequencing chemistry, which resembles traditional radioactive DNA sequencing, using the four-label system ABI 373A that expands its flexibility and obtains data that are immediately interpretable without software manipulation. This method has been named mixed-mode fluorescent DNA sequencing. Here we show one of its possible applications in molecular genetic analysis.