>sp|A7FXU9|RL21_CLOB1 Large ribosomal subunit protein bL21 OS=Clostridium botulinum GN=rplU MYAVVVTGGKQYKVAEGDILFVEKLTADVDSTVELDNVLLVGKDNGETVVGKPMVEGAKV TAKVLAQGKAKKVVVFKYKPKKDYRKKQGHRQPYTKIQIEKINA