What is the difference exactly? Thanks!
http://fred.hmc.psu.edu/ds/retrieve/fred/meshdescriptor/D020218 [Broken]Cis acting DNA sequences that can greatly increase the transcription rates of genes even though they may be far upstream or downstream from the promoter they stimulate.
http://www.geneed.com/glossary/r/index.htmlNucleotide sequences, usually upstream, which are recognized by specific regulatory transcription factors, thereby causing gene response to various regulatory agents. These elements may be found in both promoter and enhancer regions.
Why are response elements only upstream? According to the link response elements can both be in the promotor and enhancer regions, enhancer regions can both be up or downstream of a promotor.. :)Originally posted by iansmith
Responce elements are only upstream of a gene and will have a effect on the binding and action of RNA polymerase.
my mistake, should of said mostlyOriginally posted by Monique
Why are response elements only upstream?
Yeah but the gene has been transcribed whereas with these elements will stop or increase expression.Originally posted by Monique
[BFor instance: if a molecule binds downstream and causes the DNA to loop a certain way, the polymerase can't go further and will be released. That is how stop signals in bacteria work right? [/B]
I was just giving proof of concept if such elements were somewhere within a gene, a truncated product will be synthesized and rapidly degraded..Originally posted by iansmith
Yeah but the gene has been transcribed whereas with these elements will stop or increase expression.