UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
What is the importance of the number of Adenine nucleotides in the poly-A tail once pre-mRNA is converted to mRNA?
Question Date: 2001-10-30
Answer 1:

The poly-A tail stimulates re initiation of translation by the ribosome sub units. I think there is an optimum size range (~100 - 250 bases), but within that range the specific length is not critical. There are species-related variations in the optimal tail length range.

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use