The BioGenex eFISH PIK3CA/CEN 3Dual Color Probe is currently available forResearch use only.eFISH PIK3CA/CEN 3 Dual Color Probe is designed to detect humanPIK3CA gene as well aschromosome 3 alpha-satellitesin formalin-fixed, paraffinembedded tissue or cells by fluorescence in situ hybridization (FISH).BioGenex eFISH PIK3CA/CEN 3 Dual Color Probecomes in Ready to use formatinhybridization buffer. The probe contains green-labeled polynucleotides (Green: excitationat 503 nm and emission at 528 nm, similar to FITC which target PIK3CA gene andorangelabeled polynucleotides (Orange: excitation at 547 nm and emission at 572 nm,similar to rhodamine), which targets alpha satellite-sequences of the centromere ofchromosome 3.
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 withinindividual 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/antifade and can be visualized under fluorescence microscope using appropriate filterset.
Principle
In Situ hybridization (ISH) allows the detection and localization of definitive nucleic acidsequences directly within a cell or tissue. High specificity is ensured through the action ofannealing of fluorescence probe nucleic acid sequence to complementary target nucleicacid sequence. ISH techniques can be used to identify genetic aberrations like deletions,amplification, and translocationin tissue sections or within individual cells.
Storage
BioGenex eFISH PIK3CA/CEN 3 Dual Color Probemust be stored at 2-8°C, protectedfrom light and is stable through the expiry date printed on the label.