The sequences of two nuclear genes and a pseudogene for tRNAPro from the higher plant Phaseolus vulgaris

Abstract
A genomic bank of nuclear DNA (nDNA) from the higher plant Phaseolus vulgaris, constructed using the lambda EMBL-4 vector, has been screened for the presence of tRNA genes. One of the many positive recombinants was found to hybridise several times stronger than the other positives, and has been shown to contain several tRNA genes. We report the structure of two nuclear tRNA genes for tRNAPro, namely tRNAPro(UGG) and tRNAPro(AGG), and that of a ‘pseudogene’ for tRNAPro. This ‘pseudogene’, despite showing 95% homology with the other tRNAPro species presented here, has several features which are likely to affect its transcription or its functioning as a tRNA.