Break Apart Probe

Order Number
Package Size
100 µl (10 Tests)
Regulatory Status

IVDR Certification

MetaSystems Probes has already certified a large part of its portfolio, according to IVDR. For organizational reasons, we currently provide only the IVDD product.

Discover all IVDR-certified products

Product Description


XL ABL2 BA consists of an orange-labeled probe hybridizing proximal to the breakpoint in the ABL2 gene region at 1q25.2 and a green-labeled probe hybridizing distal to the break point in the ABL2 gene region at 1q25.2.

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.

Need assistance or a quote?

Clinical Details

Acute lymphoblastic leukemia (ALL) is a rare disease with approximately 1:100.000 new diagnoses per year. Around 3-5% of pediatric ALL and 25% of adult ALL are characterized by t(9;22), resulting in the BCR-ABL1 fusion gene, a constitutively active tyrosine kinase. Furthermore, BCR-ABL1 is genetically characterizing chronic myelogenous leukemia. Tyrosine kinase inhibitor treatment of BCR-ABL1-positive cases, which initially have a poor prognosis, dramatically improves the outcome. A novel high risk subtype called BCR-ABL1-like ALL or Philadelphia-like ALL was discovered based on similar gene expression profiles to BCR-ABL1-positive ALL and is characterized by aberrations resulting in activation of tyrosine kinase signaling pathways. Prominent genes in the JAK/STAT activating group are CRLF2, EPOR and JAK2, while members of the ABL-class fusions are ABL1, ABL2, CSF1R and PDGFRB. ´The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia´ specifies B-lymphoblastic leukemia/lymphoma, BCR-ABL1–like as a provisional entity.
The ABL2 gene has been initially identified as a novel fusion partner of ETV6. ABL2 belongs to the Abelson family of non-receptor tyrosine kinases and is highly similar to ABL1. t(1;12)(q25;p13) results in a chimeric ETV6-ABL2 protein with a constitutive active tyrosine kinase.

Clinical Applications

  • Acute Lymphoblastic Leukemia (ALL)
Need assistance or a quote?



XL ABL2 BA hybridized to HT-93 cells carrying t(1;12) and t(15;17), one interphase is shown. The separation of one colocalization/fusion signal indicates a split of the orange and green labled probes flanking the ABL2 breakpoint region. The remaining copy of ABL2 contributes one colocalization/fusion signal. The additional orange signal was interpreted to be localized on a derivative chromosome 4 representing a duplication of parts of the q-arm of the derivative chromosome 1.

Need assistance or a quote?

Expected Patterns

Expected Pattern 1

Normal Cell:
Two green-orange colocalization/fusion signals (2GO).

Expected Pattern 2

Aberrant Cell (typical results):
One green-orange colocalization/fusion signal (1GO), one separate green (1G) and orange (1O) signal each resulting from a chromosome break in the relevant locus.

Need assistance or a quote?


  • Iijima et al (2000) Blood 95:2126-2131
  • Arber et al (2016) Blood 127:2391-2405
  • Tasian et al (2017) Blood 130:2064-2072



IVDR Certification

MetaSystems Probes has received IVDR certification for our initial 26 fluorescence in situ hybridization (FISH) probes from the notified body, BSI. Achieving this milestone was not without its challenges, and we are delighted to have accomplished IVDR certification for this probe set at an early stage.

IVDR Certification