BLD_1616 RL21_BIFLD rplU 102 MYAIVKAGGHQEKVEVGDVILVNRLDAKKGDTVEFPVSLVVDGDKVTLAAADLAKVSVKAEVVNDEAKGPKISIQKYKNKTGVARRKGHRQKLTIVKITAIA This protein binds to 23S rRNA in the presence of protein L20 (By similarity). 50S ribosomal protein L21