>sp|Q9H633-4|RPP21_HUMAN Isoform 4 of Ribonuclease P protein subunit p21 OS=Homo sapiens OX=9606 GN=RPP21 MAGPVKDREAFQRLNFLYQAAHCVLAQDPENQALARFYCYTERTIAKRLVLRRPLSSSAP RDPSVKRTLCRGCSSLLVPGLTCTQRQRRCRGQRWTVQTCLTCQRSQRFLNDPGHLLWGD RPEAQLGSQADSKPLQPLPNTAHSISDRLPEEKMQTQGSSNQ