Which of the following signaling molecule function via JAK kinase and transcriptional regulatory protein STAT? Group...
- Which of the following signaling molecule function via JAK kinase and transcriptional regulatory protein STAT?
Group of answer choices
a. Ethylene oxide
b. Prolactin
c. TGF β
d. EGF
e. All of the above
Homework Answers
The JAK kinase is a pathway that stimulates the transcription of STAT protein which further stimulates the immune response of the human body.
The binding of the EGF to the EGFR receptor initiates the activation of the JAK pathway.
The binding of prolactin with PRLR also activates the JAK pathway.
The answer is D.
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Which of the following signaling molecule function via JAK
kinase and transcriptional regulatory protein STAT?
Group...
There are many pharmacodynamic signaling mechanisms for medications. Which signaling mechanism best describes the action of...
There are many pharmacodynamic signaling mechanisms for medications. Which signaling mechanism best describes the action of a drug which involves a coupling protein that in turn activates a separate effector molecule in the cell? Select one: a. G-protein receptors b. tyrosine kinase receptors c. JAK-STAT receptors d. steroid intracellular receptors e. transmembrane ion channels
Question 28: A system in which a regulatory protein binding to a co-regulatory molecule causes it...
Question 28: A system in which a regulatory protein binding to a co-regulatory molecule causes it to leave the operator, thereby inhibiting transcription of target genes, an example of: Group of answer choices a. Inducible negative control b. Repressible positive control c. Inducible positive control d. Repressible negative control Question 29: MEK, a MAP kinase kinase, is activated by phosphorylation. You create a mutant MEK in which the amino acids that are normally phosphorylated is replaced with aspartate. Predict the...
Which of the following sequences is correct? a. binding of a signaling molecule to its receptor...
Which of the following sequences is correct? a. binding of a signaling molecule to its receptor → G protein activation → phospholipase C activation → IP3 production → increase in cytoplasmic calcium concentration b. binding of a growth factor to its receptor → phosphorylation cascade → activation of transcription factor → transcription c. diffusion of a signaling molecule across the plasma membrane → binding of the signaling molecule to its receptor → movement of the signaling molecule-receptor complex into the...
You perform an assay on the activity of the JAK tyrosine kinase using a 40 microliter...
You
perform an assay on the activity of the JAK tyrosine kinase using a
40 microliter aliquot of a lysate prepared from cells labeled for
six minutes with radioactive cysteine. the total volume of the
lysate is 5 milliliters (ml). In the aliquot, you measure the
amount of all proteins and determine the presence of 13 micrograms
of protein in 75 microliters of lysate. which of the following is
the best calculation of the specific activity of the kinase in...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
Which of the following is included in regulatory capital but not accounting capital? Group of...
Which of the following is included in regulatory capital but not accounting capital? Group of answer choices Capital reserve for contingencies Preferred stock Subordinated debt Surplus All of the above are included in both regulatory and accounting capital
In the NFκB signaling pathway, which of the following molecules is downstream of IκB kinase? Select...
In the NFκB signaling pathway, which of the following molecules is downstream of IκB kinase? Select any/all answers that apply. A. NFκB B. TNFα C. TAK1 D. IL-1 E. Hedgehog
Which of the following functions of glutamyl-prolyl tRNA synthetase is a noncanonical function? Group of answer...
Which of the following functions of glutamyl-prolyl tRNA synthetase is a noncanonical function? Group of answer choices: A. catalyze aminoacylation of glutamic acid tRNA B. catalyze aminoacylation of proline RNA C. phosphorylation and activation of the kinase S6K1 D. interact with fatty acid transport protein 1 and increase lipid uptake
11. To have communication between cells, you must have a A) B) C) D) receptor. signaling...
11. To have communication between cells, you must have a A) B) C) D) receptor. signaling molecule. responding cell. All of these choices are correct. 12. A cell that responds to an environmental condition by the release of a chemical is an example of which of the following elements of cellular communication? A) a signaling cell B) a signaling molecule C) a receptor protein D) a responding cell E) None of the other answer options is correct 13. A chemical...
Question 1 The protein in the diagram is (circle all that apply): Group of answer choices...
Question 1
The protein in the diagram is (circle all that apply):
Group of answer choices
a) a peripheral membrane protein
b) an integral membrane protein
c) a lipid anchored protein
Question 2
The protein shown in the diagram could potentially function as
(circle all that apply):
Group of answer choices
a) a receptor
b) a transmembrane anchor
c) a pore or channel
Question 3
The protein shown in the diagram has which of the following
(choose all that apply)?...
There are many pharmacodynamic signaling mechanisms for medications. Which signaling mechanism best describes the action of a drug which involves a coupling protein that in turn activates a separate effector molecule in the cell? Select one: a. G-protein receptors b. tyrosine kinase receptors c. JAK-STAT receptors d. steroid intracellular receptors e. transmembrane ion channels
You
perform an assay on the activity of the JAK tyrosine kinase using a
40 microliter aliquot of a lysate prepared from cells labeled for
six minutes with radioactive cysteine. the total volume of the
lysate is 5 milliliters (ml). In the aliquot, you measure the
amount of all proteins and determine the presence of 13 micrograms
of protein in 75 microliters of lysate. which of the following is
the best calculation of the specific activity of the kinase in...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
11. To have communication between cells, you must have a A) B) C) D) receptor. signaling molecule. responding cell. All of these choices are correct. 12. A cell that responds to an environmental condition by the release of a chemical is an example of which of the following elements of cellular communication? A) a signaling cell B) a signaling molecule C) a receptor protein D) a responding cell E) None of the other answer options is correct 13. A chemical...
Question 1
The protein in the diagram is (circle all that apply):
Group of answer choices
a) a peripheral membrane protein
b) an integral membrane protein
c) a lipid anchored protein
Question 2
The protein shown in the diagram could potentially function as
(circle all that apply):
Group of answer choices
a) a receptor
b) a transmembrane anchor
c) a pore or channel
Question 3
The protein shown in the diagram has which of the following
(choose all that apply)?...
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