>tr|A0A0R1P9W8|A0A0R1P9W8_9LACO Small ribosomal subunit protein bS21 OS=Lactobacillus kefiranofaciens subsp. kefirgranum DSM 10550 = JCM 8572 GN=rpsU MAKTIVHENESIDDALRRFKRSVSRSGTLQEYRKREFYEKPSVRRKLKSEAARKRRHY