>tr|A0A0C9QAX5|A0A0C9QAX5_LACPA Small ribosomal subunit protein bS21 OS=Lacticaseibacillus paracasei NRIC 0644 GN=rpsU MAKTVVKKNESLDDALRRFKRTVSKSGTLAEYRKREFYEKPSVRRKLKSEAARKRKKF