The present invention describes a method for identifying one or more of a
plurality of sequences differing by one or more single base changes,
insertions, deletions, or translocations in a plurality of target
nucleotide sequences. The method includes a ligation phase, a capture
phase, and a detection phase. The ligation phase utilizes a ligation
detection reaction between one oligonucleotide probe, which has a target
sequence-specific portion and an addressable array-specific portion, and
a second oligonucleotide probe, having a target sequence-specific portion
and a detectable label. After the ligation phase, the capture phase is
carried out by hybridizing the ligated oligonucleotide probes to a solid
support with an array of immobilized capture oligonucleotides at least
some of which are complementary to the addressable array-specific
portion. Following completion of the capture phase, a detection phase is
carried out to detect the labels of ligated oligonucleotide probes
hybridized to the solid support. The ligation phase can be preceded by an
amplification process. The present invention also relates to a kit for
practicing this method, a method of forming arrays on solid supports, and
the supports themselves.