ZMYM2 and ovarian carcinoma: Additionally, the ubiquitin-binding enzyme E2B (UBE2B) can facilitate the monoubiquitination of the transcription regulator zinc finger MYM-type protein 2 (ZMYM2) mediated by the ubiquitin E3 ligase ring finger protein 73 (RNF73), thereby promoting the growth of ovarian cancer [25].