species variation in transcription factor iiia ( tfiiia ) was examined by comparing the abilities of tfiiias isolated from different xenopus and rana species to 1 ) bind rabbit anti-xenopus laevis tfiiia igg , 2 ) specifically interact with the xenopus borealis somatic 5s rna gene , and 3 ) promote transcription of the xenopus borealis 5s rna gene in vitro .
C0040649
transcription
C0035668
rna