多聚腺苷酸尾 meaning in English
poly-a tail
Examples
- It has been known that polyadenylation of 3 " end of mrna in prokaryotes is different from that of eukaryotes . the poly ( a ) tracts in bacteria are generally short , ranging from 15 - 60 adenylates residues and associated with only 2 - 60 % of the molecule of a given mrna species . mrna polyadenylation of eukaryotes always occurs in the untranslated region , 10 - 30 nucleotides downstream of the hexanucleotide sequence aauaaa
现在普遍认为细菌许多mrna3 ’端存在多聚腺苷酸尾，但其长度通常较短，大约在15 - 60腺苷酸残基范围，且对某一mrna而言，仅有2 - 60的分子被多聚腺苷酸化。