Selenocysteine tRNA<sup>[Ser]Sec</sup> Levels and Selenium-Dependent Glutathione Peroxidase Activity in Mouse Embryonic Stem Cells Heterozygous for a Targeted Mutation in the tRNA<sup>[Ser]Sec</sup> GeneHarold S. Chittum, Byeong Jae Lee, Alan M. Diamond et al.|Biochemistry|1997Cited by 26