Many genes are regulated in both a negative and a positive
manner. The genes mediating lactose metabolism in bacteria
are a classical example. What are the two small molecule
ligands that control expression of these genes? What does
each one do?
Answer Posted / gurudut
The small ,molecule lactose, or rather allolactose is an
inducer and interacts with the Lac repressor to change its
conformation so it no longer can bind DNA.
The cyclic AMP binding protein or CAP binds cyclicAMP which
is produced when the level of glucose falls. Only with
cyclic AMP bound does the CAP protein adopt a DNA
conformation.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is the name of the dna duplication process?
What is the quaternary structure of a protein?
What are the compounds used for extraction of Gold and Silver?
What is the difference between the alpha helix and the beta-sheet protein conformations?
The bond formed between the transition metal ion and ligand is?
Explain kararch effect?
Give the formula for baking soda.
Which form of isomers of a substance is more stable?
What is the order of C-H bond length in C2H6 and C2H4 and C2H2?
What is the difference between essential and natural amino acids?
What is the element in third series the element with maximum oxidation state?
What are the main theoretical models that try to explain the formation of the enzyme-substrate complex?
What are the units of ph?
Why are free cysteines treated with iodoacetate prior to protein sequencing?
What is the rule for the pairing of nitrogen-containing bases in the dna molecule and in the rna? Is this last question appropriate?