The bond is broken releasing the 5 'end of the intron and attaching it to the branch point sequence, the intron now forms a tailed loop structure called a lariat.
债券是破碎释放的5 '端的内含，并注重向分支点序列，内含子，现在形成了一个尾式闭环结构称为套索。
2
The vector was modified to include a heterologous intron with a synthetic splice donor engineered upstream of a fragment from intronA of the gonadotropin a subunit gene(containing a splice acceptor).
Since the split gene was found in 1977, the processing mechanism transcribed and the function of intron have been a popular subject about the study of molecular genetics ineucaryote.