MXK3.2 106 CLE21p Extracellular signal peptide that regulates cell fate. Represses root apical meristem maintenance. CLAVATA3/ESR (CLE)-related protein 21 MLILSSRYAMKRDVLIIVIFTVLVLIIISRSSSIQAGRFMTTGRNRNLSVARSLYYKNHHKVVITEMSNFNKVRRRSSRFRRKTDGDEEEEEKRSIPTGPNPLHNK CLE21_ARATH CLE21 At5g64800