>sp|A1UJ09|RL21_MYCSK Large ribosomal subunit protein bL21 OS=Mycobacterium sp. GN=rplU MASYAIVKTGGKQYKVAVGDVVKVEKLDSEPGASVSLPVALVVDGANVTSKAEDLAKVAV TGEVLEHTKGPKIRIHKFKNKTGYHKRQGHRQQLTVLKVTGIK