How do steroid hormones typically regulate gene expression?
Explanation
Steroid hormones are lipophilic molecules that regulate gene expression by crossing the cell membrane and binding to intracellular nuclear receptors, which then function as ligand-activated transcription factors.
Other questions
What is the primary factor that accounts for the specificity of signal transduction, ensuring a signal molecule fits its complementary receptor and other signals do not?
How does an enzyme cascade contribute to the amplification feature of signal-transducing systems?
What is the general structure of a G protein–coupled receptor (GPCR)?
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What event triggers the autophosphorylation of the insulin receptor (INSR)?
In the insulin signaling pathway, what is the function of the PI3K enzyme after it is activated by binding to phosphorylated IRS-1?
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Which type of protein domain specifically binds to phosphorylated tyrosine (P-Tyr) residues in partner proteins?
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What is the function of the G protein transducin in the rod cell signaling cascade?
In the regulation of the eukaryotic cell cycle, what is the primary role of cyclin-dependent protein kinases (CDKs)?
What is the function of the tumor suppressor protein pRb (retinoblastoma protein)?
What is the effect of the drug tamoxifen in the treatment of some breast cancers?
What is the typical dissociation constant (Kd) for a hormone-ligand interaction, corresponding to very tight binding?
In olfactory neurons, what is the role of the G protein Golf?
In the human genome, approximately how many genes encode G protein-coupled receptors (GPCRs)?
What is apoptosis?