>tr|A0A0S4R1G3|A0A0S4R1G3_CAMFE Small ribosomal subunit protein bS21 OS=Campylobacter fetus subsp. fetus GN=rpsU MPGVKVHPNESFDEAYRRFKKQTDRNLVVTEVRARRFFEPMTEIRKKQKISARKKMLKRL YMLRRYESRL