>sp|B1ILY8|RL21_CLOBK Large ribosomal subunit protein bL21 OS=Clostridium botulinum GN=rplU MYAVVVTGGKQYKVAEGDVLFVEKLTADVDSTVELDNVLLVGKDNGETVVGKPMVEGAKV TAKVLAQGKAKKVVVFKYKPKKDYRKKQGHRQPYTKIQIEKINA