The BioGenex eFISH RB1/13q12 Dual Color Probe currently available for Research useonly.eFISHRB1/13q12 Dual Color Probe is designed to be used for the detection of thehuman RB1 gene as well as chromosome 13 specific sequences in formalin-fixed,paraffin-embedded tissue or cells by fluorescence in situhybridization (FISH).eFISH BioGenex RB1/13q12 Dual Color Probe in hybridization buffer. The probecontains orange-labeled polynucleotides (Orange: excitation at 547 nm and emission at572 nm, similar to rhodamine), which target the RB1 gene in 13q14.2, and green-labeledpolynucleotides (Green: excitation at 503 nm and emission at 528 nm, similar to FITC),which target sequences of chromosome 13 in the chromosomal region 13q12.11.
Description
Fluorescence in situ hybridization (FISH) is a robust technique of cytogenetic used for thedetection of chromosomal aberrations, presence or absence of specific DNA sequence innative context. In this technique florescent probes bind to the target sequence of DNA inchromosome. High specificity and sensitivity coupled rapid and an accurate result hasproven role of FISH in both research and diagnosis of solid tumor and hematologicalmalignancies. As technique of cancer cytogenetics, FISH, can be used to identify geneticaberrations viz., deletions, amplification and translocation in tissue sections or within individual cells. FISH is also used for use in genetic counseling, medicine, and speciesidentification. FISH can also be used to detect and localize specific RNA targets in cells,circulating tumor cells, and tissue samples1,2,3,4,5.In FISH procedure, fixed tissue sections are pretreated to expose target DNA or mRNAsequences. An appropriately labeled probe is hybridized to the exposed target DNA ormRNA sequences in the cells. Subsequent stringent washing steps remove any probe thatis non-specifically bound to the tissue section. Subsequently slides are mounted usingDAPI/anti-fade and can be visualized under fluorescence microscope using appropriate filterset.
Principle
In Situ hybridization (ISH) allows the detection and localization of definitive nucleic acid sequences directly within a cell or tissue. High specificity is ensured through the action of annealing of fluorescence probe nucleic acid sequence to complementary target nucleic acid sequence. ISH techniques can be used to identify genetic aberrations like deletions, amplification, and translocationin tissue sections or within individual cells.
Storage
The BioGenex eFISH BioGenex RB1/13q12 Dual Color Probemust be stored at 2-8°C protected from light and is stable through the expiry date printed on the label.