Isolation and characterization of genomic moose DNA clones containing sequences homologous to tRNAs and 5S rRNA

Abstract
We have cloned and characterized three fragments of Balb/c mouse DNA which hybridize to mouse cell tRNAs. Fractionation of the tRNAs which hybridize to these clones reveals that two of the clones, λMt-4A and λMt-6A hybridize to only one or two tRNAs, while one clone, λMt-4B, hybridizes to at least seven tRNAs. Two of the tRNAs were identified as and , and others have been identified as tRNAs which are selectively encapsidated into virions of rourine leukemia virus and avian reticuloendotheliosis virus. The DNA sequences of putative genes for and , plus flanking regions, were determined. A clone of Balb/c mouse DNA which selectively hybridized to 5S rRNA was also isolated and partially characterized.