>tr|A0A1X9SPQ4|A0A1X9SPQ4_9BACT Small ribosomal subunit protein bS21 OS=Campylobacter lanienae NCTC 13004 GN=rpsU MPGVKVHPNESFDEAYRRFKKQTDRNLVVTEVRARRFFEPMTEIRKKQKISARKKMLKRL YMLRRYESRL