Members of the ARID protein family, including ARID5A, have diverse functions but all appear to play important roles in development, tissue-specific gene expression, and regulation of cell growth.Members of the ARID protein family, including ARID5A, have diverse functions but all appear to play important roles in development, tissue-specific gene expression, and regulation of cell growth. ARID5A binds to AT-rich stretches in the modulator region upstream of the human cytomegalovirus major intermediate early gene enhancer and may act as repressor and down-regulate enhancer-dependent gene expressison.Synonyms: ARID domain-containing protein 5A, AT-rich interactive domain-containing protein 5A, MRF-1, Modulator recognition factor 1