[Term] id: PR:000000127 name: smad ubiquitination regulatory factor def: "A HECT domain-containing E3 ubiquitin-protein ligase with WW domains that mediates smad ubiquitination." [PRO:CNA] comment: Category=family. synonym: "smurf" EXACT [] xref: PIRSF:PIRSF500454 is_a: PR:000000016 ! HECT domain-containing E3 ubiquitin-protein ligase with WW domains