共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
A phenylalanine tRNA gene from Neurospora crassa: conservation of secondary structure involving an intervening sequence. 总被引:6,自引:4,他引:2
下载免费PDF全文
![点击此处可从《Nucleic acids research》网站下载免费的PDF全文](/ch/ext_images/free.gif)
We have isolated and sequenced a tRNAPhe gene from Neurospora crassa. Hybridization analyses suggest that trnaPhe is the only tRNA encoded on the cloned 5 kb DNA fragment. The tRNAPhe gene contains an intervening sequence 16 nucleotides in length located one nucleotide 3' to the anticodon position. The tRNAPhe coding region of Neurospora and yeast are 91% conserved, whereas their intervening sequences are only 50% identical. The pattern of sequence conservation is consistent with a proposed secondary structure for the tRNA precursor in which the anticodon is base paired with the middle of the intervening sequence and the splice points are located in adjacent single-stranded loops. The DNA sequence following the tRNAPhe coding region is similar to sequences following other genes transcribed by RNA polymerase III in that it is AT-rich and includes a tract of A residues in the coding strand. In contrast, the sequence preceding the Neurospora tRNAPhe coding region does not resemble sequences preceding other sequenced tRNA genes. 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Multiple mutations of the first gene of a dimeric tRNA gene abolish in vitro tRNA gene transcription 总被引:3,自引:0,他引:3
M Nichols J Bell M S Klekamp P A Weil D S?ll 《The Journal of biological chemistry》1989,264(29):17084-17090