1. The term (affinity/potency) is used to describe the strength of a drug’s binding to receptors. Which is correct?
1. The term affinity used to describe the strength of a drugs binding to receptors.
1. The term (affinity/potency) is used to describe the strength of a drug’s binding to receptors....
1. (Affinity/potency) refers to the dosage needed to produce a response. Which is correct?
affinity chromatography is often used as a technique to purify cell-surface receptors. describe the steps you would take to purift rhe cell-surface receptor using this technique
Describe the T and R conformaions of hemoglobin with regards to: oxygen binding affinity; change in heme conformation upon binding to oxygen; effect that a conformational change in a single subunit has on other subunits (ex: cooperativitt)
O2 binding to Fe2+ in one subunit of hemoglobin changes the binding affinity of the other 3 subunits. a. Describe the change in the shape of the heme that results in O2 binding. b. How is the heme shape change communicated to the other subunits c. What is the role of Bisphosphoglycerate (BPG) in hemoglobin mediated oxygen transport?
1. which of the 3 drugs above have the highest binding affinity toward EGFR? a. erlotinib b. afatinib c. gefitinib
imagine that you are trying to describe how receptors work to a non-biologist - say a relative. Using everyday analogies try to explain how you go from a ligand binding at the receptor to long-term changes in the cell. Try to avoid as much technical jargon as you can.
The binding of a hormone to three different protein receptors is measured in separate experiments. The table below shows θ, the fractional saturation of each receptor, for various hormone concentrations. Draw a binding curve that plots the data points for Protein 3. Label the axes of your graph, including the correct units. What is the Kd for the interaction of the hormone with Protein 3? Draw binding curves for Proteins 1 and 2 on the same graph. Clearly label which...
What is the correct answer to the question below and why. Also, why is my answer (marked with a dash through it) wrong. x6. Smooth muscle of arterioles is populated with alpha-1 subtype adrenergic receptors ivation of alpha-1 receptors leads to vasoconstriction. Both epinephrine and norepinephrine can activate alpha-1 receptors, however norepinephrine has considerably higher affinity for the receptor, compared to epinephrine. If we used to the figure to the right to explain this, we would say that 100 A....
Which of the following describe or exemplify metabolotrophic receptors (select all that apply)? Select one or more: a. Protein channels opening and allowing neurotransmitters or ions to flow into the cell b. Salty taste receptor c. Signal transduction cascades that can lead to depolarization events d. Bitter taste receptors e. Internal g-proteins activated by binding of a stimulus or ligand on the cell’s exterior
e stwc snct 2pts. Caci 1. In order to elute Con A from the affinity beads, (a) 1.0M NaCI was used, (b) HRP was used, (c) the sephadex beads were washed twice with NaCl, (d) glucose was used, (e) the elution buffer contained a carbohydrate binding protein. 2. A specific biological property is used to separates macromolecules in (a) affinity chromatography (b) TLC, (c) ion exchange chromatography, (d) electrophoresis, (e) protein assay 3. In order to separate proteins from lectins...