pfam07988: LMSTEN (This model is not part of the current CDD release)
LMSTEN motif
This region of Myb proteins has previously been described as the transcriptional activation domain present in the vertebrate c-Myb and A-Myb, but neither vertebrate B-Myb proteins nor Myb proteins of invertebrates. Because vertebrate B-Myb (but neither A-Myb nor c-Myb) can partially complement Drosophila Myb null mutants, this region appears to have been a relatively recent insertion.
Jiyao W et al.(2023). "The conserved domain database in 2023.",