>tr|A0A542XNP4|A0A542XNP4_SALAC Large ribosomal subunit protein bL21 OS=Salinispora arenicola GN=rplU MYAIVKTGGKQYKVAEGDVIEVEKLAGAPGDAVQLAAVLLVDGDDLVTDAAKLAEVEVSG EIAAHTKGPKIRIHKFKNKTGYHKRQGHRQPLTQVKVTGISSGK