>tr|A0A4P8BZF4|A0A4P8BZF4_ECOLX Small ribosomal subunit protein bS21 OS=Escherichia coli O145:NM GN=rpsU
MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL
ARENARRTRLY