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rockind78
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What is the difference exactly? Thanks!
http://fred.hmc.psu.edu/ds/retrieve/fred/meshdescriptor/D020218Cis 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.
Originally posted by Monique
Why are response elements only upstream?
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.
Enhancers and response elements are DNA sequences that play a critical role in regulating gene expression. Enhancers are sequences that can increase the transcription of a gene, while response elements are sequences that can activate or repress the expression of a gene in response to certain signals or stimuli.
Enhancers and response elements work by interacting with specific proteins, such as transcription factors, that bind to these sequences and regulate gene expression. They can also interact with other regulatory elements to form complex networks that control the timing and level of gene expression.
The main difference between enhancers and response elements is their function. Enhancers are involved in increasing gene expression, while response elements can both activate and repress gene expression in response to specific signals or stimuli.
Enhancers and response elements can be located anywhere in the genome, including within the coding region of a gene or far away from the gene they regulate. They can also be located on the same chromosome as the gene or on a different chromosome.
Yes, enhancers and response elements can be mutated, which can lead to changes in gene expression. Mutations can alter the binding of regulatory proteins to these sequences, resulting in either increased or decreased gene expression. This can have important implications for development, disease, and other biological processes.