The ULS labeling kit for CombiMatrix arrays can be used to label either amplified or unamplified RNA or DNA. Since ULS labeling is a chemical labeling enzymatic steps are carried out efficiently with natural unmodified nucleotides instead of bulky modified nucleotides. Generating unmodified target also allows more flexibility. The unmodified RNA or DNA can be used in a variety of ways e.g. it can be labeled with either fluorescent or biotin labels, some can be used for a microarray experiment and the rest for an RT-PCR validation.
