Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 27, Problem 16P
Interpretation Introduction
Interpretation:
The reason for the T172D mutation of the AMPK to be locked in a permanently active state should be explained.
Concept introduction:
T172D shows that the mutation happens at position 172 in AMPK substitution from an essential amino acid to an aspartic resulting in charged aminoalkanoic acid (aspartic acid) in place of a polar neutral among acid (threonine).
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A strain of mice has been developed that lack the enzyme phosphorylase kinase. Yet, after strenuous exercise, the glycogen stores of a mouse of this strain are depleted. Explain how this depletion is possible.
The EC50 of an agonist for a GPCR is almost always (greater than, equal to, or less than) the KD of the same agonist at the same GPCR. Why?
Describe the biochemical alterations that result in type 2 diabetes.
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- The interconversion of DHAP and GAP greatly favors the formation of DHAP at equilibrium. Yet the conversion of DHAP by triose phosphate isomerase proceeds readily. Whyarrow_forwardDiscuss the metabolic rationale for phosphorylation of acetyl-CoA carboxylase by AMP-activated protein kinase (AMPK) and cyclic AMP–dependent protein kinase (PKA).arrow_forwardDiscuss the metabolic rationale for phosphorylation of acetyl-CoA carboxylase by AMP-activated protein kinase (AMPK) and cyclic AMP-dependent protein kinase (PKA).arrow_forward
- Write a balanced equation for the hydrolysis of cyclic GMP, catalyzed by CGMP phosphodiesterase. Would you expect an inhibitor of this enzyme to potentiate or antagonize the action of Viagra? Explain.arrow_forwardHydroxyurea has been shown to increase the expression of fetal hemoglobin in adult red blood cells, by a mechanism that remains unclear. Explain why hydroxyurea can be a useful therapy for patients with sickle-cell anemia.arrow_forwardHemophiliacs who lack factor IX are sometimes given infusions of factor VII to restore normal blood clotting activity. Explain.arrow_forward
- decrease in cGMP inactivation of a phosphodiesterase activation of guanylyl cyclase increase in cGMP activation of adenylyl cyclasearrow_forwardInositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG) are second messenger molecules derived from the cleavage of phosphatidylinositol 4,5-bisphosphate [PI(4,5) P2] by activated phospholipase C. Describe the role of IP3 in causing a rise in cytosolic Ca2+ concentration. How do cells restore resting levels of cytosolic Ca2+? What is the principal function of DAG?arrow_forwardWrite a balanced equation for the hydrolysis of cGMP, catalyzed by cGMP phosphodiesterase. Would you expect an inhibitor of this enzyme to potentiate or antagonize the action of Viagra? Explain.arrow_forward
- Lithium ion inhibits the synthesis of inositol trisphosphate by inhibiting a reaction in the breakdown of inositol trisphosphate.Explain this apparent paradox.arrow_forwardLithium ion inhibits the synthesis of inositol trisphosphate by inhibiting a reaction in the breakdown of inositol trisphosphate. Explain this apparent paradox.arrow_forwardA plant breeder has developed a new frost-resistant variety of tomato that contains higher levels of unsaturated fatty acids in membrane lipids than those found in standard tomato varieties. However, when temperatures climb above 95°F, this frost-resistant variety dies, whereas the standard variety continues to grow. Provide a likely explanation of the biochemical basis of increased tolerance to cold and increased susceptibility to heat of this new tomato variety.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning