UBA2 and mastitis: Also, miR-223 has demonstrated protein-protein interactions with the predicted candidate genes (F-box protein 30 (FBXO30), SMAD specific E3 ubiquitin-protein ligase 2 (SMURF2), F-box and WD repeat domain containing 7 (FBXW7), and ubiquitin-like modifier activating enzyme 2 (UBA2), suggesting that miR-223 could regulate mastitis through bacterial invasion, endocytosis, antigen processing, immune response, and TGF-β and MAPK signaling in mammary epithelial cells 142-144.