>tr|A0A452RQ74|A0A452RQ74_URSAM Large ribosomal subunit protein eL21 OS=Ursus americanus GN=RPL21 MTNTKGKRRGTRYMFSRPFRKHGVVPLATYMRIYKKGDIVDIKGMGTVQKGMPHKCYHGK TGRVYNVTQHAVGIVVNKQVKGKILAKRINVRIEHIKHSKSRDSFLKRVKENDQKKKEAK EKGTWVQLKRQPAPPREAHFVRTNGKEPELLEPIPYEFMA