>sp|P58059|RT21_MOUSE Small ribosomal subunit protein bS21m OS=Mus musculus OX=10090 GN=Mrps21 PE=1 SV=1 MAKHLKFIARTVMVQEGNVEGAYRTLNRILTTDGLTEVISRRRYYEKPCRRRQRESYETC RRIYNMEMARKINFLMRKNRADPWLGC