>sp|Q9KD65|RS21_HALH5 Small ribosomal subunit protein bS21 OS=Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125) OX=272558 GN=rpsU PE=3 SV=1 MAETRVRKNESIDAALRRFKRSLSKEGTLAEVRKRKHYEKPSVRRKKKSEAARKRKF