>tr|A0A8B7U6R1|A0A8B7U6R1_CASCN BTB/POZ domain-containing protein KCTD21 isoform X2 OS=Castor canadensis GN=Kctd21 MSDPITLNVGGKLYTTSLATLTSFPDSMLGAMFSGKMPTKRDSQGNCFIDRDGKVFRYIL NFLRTSHLDLPEDFQEMGLLRREADFYQVQPLIEALQEKEVELSKAEKNAMLNITLKQRV QTVHFTVREAPQIYSLSSSSMEVFNANIFSTSCLFLKLLGSKLFYCSNGNLSSITSHLQD PNHLTLDWVANVEGLPEEEYTKQNLKRLWVVPANKQINSFQVFVEEVLKIALSDGFCIDS SHPHALDFMNNKIIRLIRYR