Lifetime estimates of mRNA in live bacteria exceed typical times required for transcription of a message by a factor of

Range ~15 Unitless
Organism Bacteria Escherichia coli
Reference Bakshi S, Siryaporn A, Goulian M, Weisshaar JC. Superresolution imaging of ribosomes and RNA polymerase in live Escherichia coli cells. Mol Microbiol. 2012 Jul85(1):21-38. doi: 10.1111/j.1365-2958.2012.08081.x. p.22 right column 3rd paragraphPubMed ID22624875
Primary Source Bernstein JA, Khodursky AB, Lin PH, Lin-Chao S, Cohen SN. Global analysis of mRNA decay and abundance in Escherichia coli at single-gene resolution using two-color fluorescent DNA microarrays. Proc Natl Acad Sci U S A. 2002 Jul 23 99(15):9697-702PubMed ID12119387
Comments "Taken together, [researchers] results strongly suggest that at least in E. coli, most translation is not coupled with transcription (the ‘co-transcriptional translation’ mechanism), counter to a view common in the literature. Instead, the data suggest that completed messages diffuse to find the ribosome-rich regions where the bulk of translation occurs. This is consistent with the fact that lifetime estimates of mRNA in live bacteria exceed typical times required for transcription of a message by a factor of 15 or so (primary source)."
Entered by Uri M
ID 108599