Hydrophobic Signals and control of transcription Flashcards
1
Q
Where can
Hydrophobic signalling molecules
diffuse
A
Directly through the phospholipid bilayer of membranes
2
Q
Pathway of
Hydrophobic signalling molecules
A
Diffuse through the PBiylayer and bind to intracellular receptors in the cytosol, hormone receptor complex binds to HREs on DNA
3
Q
Horome receptor elements
A
Specific DNA sequences where the hormone receptor complex can bind
4
Q
Binding at HREs
A
Infleunces rate of transcription, with each steroid hormone affecting the gene expression of many different genes
5
Q
Transcription Factors
A
Proteins that when bound to dna can either stimulate or inhibit transcription
(receptors for hydrophobic signalling molecules)
6
Q
Examples of hydrophobic signalling molecules
A
The steroid hormones oestrogen and testerone
