Vysis LSI BCR/ABL Dual Color, Dual Fusion Translocation Probe Kit

For more information, contact Abbott.

PRODUCT NAME UNIT SIZE ORDER NUMBER GTIN


This fluorescence in situ hybridization (FISH) probe is intended to detect the t(9;22)(q34;q11.2) and complex or masked variants of t(9;22) that result in the BCR/ABL gene fusion. The probe may be used with metaphase chromosomes or interphase nuclei.
 

The approximately 671 kb SpectrumOrange ABL probe extends from a point centromeric of the arginosuccinate synthase gene (ASS1) to telomeric of the ABL1 gene on chromosome 9. The SpectrumGreen BCR probe spans a genomic distance of approximately 1.5 Mb. It begins within the variable segments of the IGL locus on chromosome 22 and ends at a point about 900 kb telomeric to the BCR gene. A 326 kb region immediately telomeric of the BCR gene is not present in the probe. Both BCR and ABL1 probes span the typical t(9;22) chromosomal breakpoints for their respective genes.


A nucleus lacking the t(9;22) translocation will exhibit the two orange, two green (2O2G) signal pattern. In a nucleus containing a simple balanced t(9;22), one orange and one green signal from the normal 9 and 22 chromosomes and two orange/green (yellow) fusion signals, one each from the derivative 9 and 22 chromosomes, will be observed (1O1G2F). In some instances, deletions may occur 3’ of the BCR breakpoint and/or 5’ of the ABL breakpoint resulting in either an ES (extra orange or green) signal pattern or a single fusion pattern.

Abnormal Hybridization: LSI BCR/ABL Dual Color, Dual Fusion Translocation Probe hybridized to a nucleus containing a simple balanced t(9;22). One orange, one green and two orange/green fusion signals are observed (1O1G2F).