>sp|B3QSH6|RL21_CHLT3 Large ribosomal subunit protein bL21 OS=Chloroherpeton thalassium GN=rplU MRALVEISDKQFFVTEGEKLFVPTQKAEAGDTLTFEKVLLQSDGAAASLSPSCKVTAKLL RHIKGDKVTVFKKKRRKRYRVTRGHRQGFSEIEILSVA