The SPEC CD274, PDCD1LG2/CEN 9 Dual Color Probe is a mixture of a green fluorochrome direct labeled SPEC CD274, PDCD1LG2 probe specific for the CD274 and PDCD1LG2 genes at 9p24.1 and an orange fluorochrome direct labeled CEN 9 probe specific for the classical satellite III region of chromosome 9 (D9Z3) at 9q12.
