Send to

Choose Destination
See comment in PubMed Commons below
J Biol Chem. 1999 Jul 30;274(31):21981-5.

Cloning and characterization of the EAP30 subunit of the ELL complex that confers derepression of transcription by RNA polymerase II.

Author information

  • 1Edward A. Doisy Department of Biochemistry, Saint Louis University School of Medicine, Saint Louis, Missouri 63104, USA.


The product of the human oncogene ELL encodes an RNA polymerase II transcription factor that undergoes frequent translocation in acute myeloid leukemia (AML). In addition to its elongation activity, ELL contains a novel type of RNA polymerase II interaction domain that is capable of repressing polymerase activity in promoter-specific transcription. Remarkably, the ELL translocation that is found in patients with AML results in the deletion of exactly this functional domain. Here we report that the EAP30 subunit of the ELL complex has sequence homology to the Saccharomyces cerevisiae SNF8, whose genetic analysis suggests its involvement in the derepression of gene expression. Remarkably, EAP30 can interact with ELL and derepress ELL's inhibitory activity in vitro. This finding may reveal a key role for EAP30 in the pathogenesis of human leukemia.

[PubMed - indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center