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MLL/MLLT4 Translocation, Dual Fusion

Catalogue Numbers
RU-LPH 084-S* (50μl)
RU-LPH 084* (100μl)

Probe Specification

  • MLL, 11q23.3, Green
  • MLLT4, 6q27, Red

The MLL probe, labelled in green, covers a 200kb region including the MLL (KMT2A) gene. The MLLT4 probe, labelled in red, consists of two clones (187kb and 136kb) that flank the MLLT4 gene.

Probe Information

Translocations involving chromosome 11q23 frequently occur in both acute myeloid leukaemia (AML) and acute lymphoblastic leukaemia (ALL). In most cases, the MLL gene is involved but translocation partners are extremely variable, with 79 direct translocation partners having been molecularly characterised so far.

The most common MLL rearrangement in both AML and ALL involves fusion of the MLL and AFF1 (AF4) genes via a t(4;11)(q21;q23) translocation. Three of the other more common translocations involve the MLLT3 (AF9) gene on chromosome 9, the MLLT1 (ENL) gene on chromosome 19 or the MLLT4 (AF6) gene on chromosome 6.

• MLL/MLLT3(AF9) - t(9;11)(p22;q23)

• MLL/MLLT1(ENL) - t(11;19)(q23;p13.3)

• MLL/MLLT4(AF6) - t(6;11)(q27;q23)

We now have a range of Research Use Only (RUO) Translocation, Dual Fusion probes to allow specific detection of these MLL rearrangements.

Not only do Cytocell offer an extensive range of high-quality FISH probes, the customer support is also excellent — providing fast access to all the probes I need. The probes are highly consistent with bright signals allowing easy scoring of results. Dr Eric Crawford, Senior Director, Genetics Associates Inc.


• Meyer et al., Leukemia 2013;27(11):2165-76

Microscope Images

MLL MLLT4 Translocation Dual Fusion magnified
Area of Interest*


For research use only, not for use in diagnostic procedures.

*Disease information supported by the literature and is not a reflection of the intended purpose of this product.