XL ROS1-GOPC BA consists of a green-labeled probe hybridizing proximal to the ROS1 gene region at 6q22.1 and an orange-labeled probe hybridizing distal to the ROS1 gene region at 6q22.1.

Probe maps are created in accordance with the intended purpose of the product. Solid colored bars do not necessarily indicate that the probe fully covers the indicated genomic region. Therefore, caution is advised when interpreting results generated through off-label use. Probe map details based on UCSC Genome Browser GRCh37/hg19. Map components not to scale. Further information is available on request.

Translocations involving the ROS1 receptor tyrosine kinase gene have recently been described in a subset of non-small-cell lung cancers (NSCLCs). Chromosomal rearrangements involving the ROS1 gene were originally described in glioblastomas, where ROS1 is fused to the GOPC gene by an interstitial deletion.
Fusions of ROS1 with other genes lead to constitutive kinase activity and are associated with in vitro sensitivity to tyrosine kinase inhibitors such as crizotinib.

Clinical Applications

• Solid Tumors (Solid Tumors)

XL ROS1-GOPC BA hybridized to the U-138 cell line. Several interphase nuclei show the expected fusion pattern, while one cell to the left is showing a homozygous deletion of the orange signals.

• Charest et al (2003) Genes Chrom Cancer 37:58-71
• Takeuchi et al (2011) Nat Med 18:378-381
• Bergethon et al (2012) J Clin Oncol 30:863-870

• Utility and performance of bacterial artificial chromosomes-on-beads assays in chromosome analysis of clinical prenatal samples, products of conception and blood samples.
• A child with multiple congenital anomalies due to partial trisomy 7q22.1 → qter resulting from a maternally inherited balanced translocation: a case report and review of literature.
• Distinct roles of ATM and ATR in the regulation of ARP8 phosphorylation to prevent chromosome translocations.
• Heterogeneous MYCN amplification in neuroblastoma: a SIOP Europe Neuroblastoma Study.
• Immense random colocalization, revealed by automated high content image cytometry, seriously questions FISH as gold standard for detecting EML4-ALK fusion.
• Fluorescence in situ hybridisation assays designed for del(7q) detection uncover more complex rearrangements in myeloid leukaemia cell lines
• Detection of t(7;12)(q36;p13) in paediatric leukaemia using dual colour fluorescence in situ hybridisation.
• A rare case of t(11;22) in a mantle cell lymphoma like B-cell neoplasiaresulting in a fusion of IGL and CCND1: case report.
• Genomic DNA-chip hybridization in t(11;14)-positive mantle cell lymphomas shows a high frequency of aberrations and allows a refined characterization of consensus regions.