>tr|D4FZK3|D4FZK3_BACNB Large ribosomal subunit protein bL21 OS=Bacillus subtilis subsp. natto GN=rplU MYAIIKTGGKQIKVEEGQTVYIEKLAAEAGETVTFEDVLFVGGDNVKVGNPTVEGATVTA KVEKQGRAKKITVFRYKPKKNVHKKQGHRQPYTKVTIEKINA