Regulatory Sequences in Protein Coding Genes Flashcards
1
Q
Where can enhancers be located?
A
ANYWHERE, basically!
UPSTREAM from promoter
DOWNSTREAM from promoter
WITHIN AN INTRON
DOWNSTREAM OF THE FINAL EXON OF THE GENE
2
Q
What is a upstream activating sequence (UAS)?
A
A REGULATORY ELEMENT that works like an enhancer that MANY YEAST GENE’s have.
3
Q
In procaryotes, how does an enhancer(rare)/proximal-promoter element affect the transcription of a gene?
A
The “enhancer” AFFECTS ALL OF THE EXONS encoded in the gene. There is no RNA processing (operons).
4
Q
What is the effect of an enhancer?
A
It STIMULATES TRANSCRIPTION of a gene. They are not essential for transcription, they just “boost” it.
