Three mRNA populations differing in turnover and processing in mouse liver |
| |
Authors: | E V Lubimova T V Chernovskaja M I Lerman |
| |
Institution: | (1) Institute of Biological and Medical Chemistry, Academy of Medical Sciences of the U.S.S.R., Moscow, USSR |
| |
Abstract: | Using kinetics of approach to steady state labeling, we have found that liver poly(A)+ mRNAs fall into three populations, differing in stability and probably in processing, as reflected in their dissimilar delays in reaching polyribosomes and turnover times. There are mRNA-1 (delay 10 min, half-life 1 hr); mRNA-2 (delay 3 hr, half-life 2 hr); and mRNA-3 (delay 40 min, half-life 2.6 hr). The first two species function on free polyribosomes while the third one is operating on bound polyribosomes. The populations listed contribute 10, 20 and 70%, respectively, to the total steady state labeled poly(A)+ mRNAs.Abbreviations Poly(A)+ and poly(A)- mRNAs
mRNAs with and without poly(A) segments on the 3 end
- HnRNA
heterogeneous nuclear RNA |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|