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BAH, or Bromo Adjacent Homology domain (also called ELM1 and BAM for Bromo Adjacent Motif). BAH domains have first been described as domains found in the polybromo protein and Yeast Rsc1/Rsc2 (Remodeling of the Structure of Chromatin). They also occur in mammalian DNA methyltransferases and the MTA1 subunits of histone deacetylase complexes. A BAH domain is also found in Yeast Sir3p and in the origin receptor complex protein 1 (Orc1p), where it was found to interact with the N-terminal lobe of the silence information regulator 1 protein (Sir1p), confirming the initial hypothesis that BAH plays a role in protein-protein interactions.
Jiyao W et al.(2023). "The conserved domain database in 2023.",