Q15797 SMAD1_HUMAN Mothers against decapentaplegic homolog 1 [...] SMAD1 , BSP1, MADH1, MADR1Homo sapiens (Human) 465 AA Q9UPN9 TRI33_HUMAN E3 ubiquitin-protein ligase TRIM33 [...] TRIM33 , KIAA1113, RFG7, TIF1GHomo sapiens (Human) 1,127 AA Q15796 SMAD2_HUMAN Mothers against decapentaplegic homolog 2 [...] SMAD2 , MADH2, MADR2Homo sapiens (Human) 467 AA Q93008 USP9X_HUMAN Ubiquitin carboxyl-terminal hydrolase 9X [...] USP9X , DFFRX, FAM, USP9Homo sapiens (Human) 2,554 AA Q13485 SMAD4_HUMAN Mothers against decapentaplegic homolog 4 [...] SMAD4 , DPC4, MADH4Homo sapiens (Human) 552 AA Q9Y4E8 UBP15_HUMAN Ubiquitin carboxyl-terminal hydrolase 15 [...] USP15 , KIAA0529Homo sapiens (Human) 981 AA P84022 SMAD3_HUMAN Mothers against decapentaplegic homolog 3 [...] SMAD3 , MADH3Homo sapiens (Human) 425 AA