it has been established that two separated regions within the coding sequence of a trna gene are essential and sufficient for promotion of transcription [ hofstetter , h. , kressmann , a . & birnstiel , m. l. ( 1981 ) cell 24 , 573-585 ; ciliberto , g. , castagnoli , l. , melton , d. a . & cortese , r. ( 1982 ) proc . natl . acad . sci . usa 79 , 1195-1199 ] .
C0079941
regions
C0007634
cell