>sp|A7I9H8|RL21_METB6 Large ribosomal subunit protein eL21 OS=Methanoregula boonei GN=rpl21e MAHHNGPRKKTRYKFKKELRQRGLPPVTSVIQQFEVGEKVHIVVNSSVQKGMPHRRFHGL TGTVIGKRGRAWMLTIHDGNAEKTVIARPQHLKAQK