>tr|A0A0K9UNX1|A0A0K9UNX1_VIBCL Small ribosomal subunit protein bS21 OS=Vibrio cholerae 2740-80 GN=rpsU MPVVKVRENEPFDVALRRFKRSCEKAGILSEVRRREHYEKPTTVRKRAKAAAQKRHAKKL ARENARRVRLY