1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
3 years ago
10

The second messenger cyclic AMP (cAMP) is synthesized from ATP by the activity of the enzyme adenylyl cyclase. Cyclic AMP, in tu

rn, activates protein kinase A (PKA), also called cAMP‑dependent protein kinase, which is responsible for most of the effects of cAMP within the cell. Determine the correct steps in the activation of PKA, and then place them in the correct order, starting after the adenylyl cyclase reaction.
Chemistry
1 answer:
scoundrel [369]3 years ago
8 0

Answer: 1. Cyclic AMP(cAMP) concentration increases;

2. cAMP then binds to the two regulatory subunits;

3. A change in the conformation of enzyme results. The autoinhibitory sequences move away from the active site of the catalytic subunits;

4. The catalytic sites are now free to catalyse the various reactions of PKA.

(Note: The question did not list the steps to be placed in the correct order)

Explanation:

The inactive form of Protein Kinase A (PKA) contains two identical sub-units (C) and two identical regulatory sub-units (R). Two auto-inhibitory sequences of the regulatory subunits occupy the catalytic sites of the catalytic subunits. After the reaction of adenylyl cyclase, this inactive form of PKA is activated in the following steps:

1.<em> </em><em>Cyclic AMP</em><em>(</em><em>cAMP</em><em>) concentration increases;</em>

<em>2. </em><em>cAMP</em><em> then binds to the two regulatory subunits;</em>

<em>3. A change in the conformation of enzyme results. The autoinhibitory sequences move away from the active site of the catalytic subunits;</em>

<em>4. The catalytic sites are now free to catalyse the reactions various of </em><em>PKA</em><em> which includes the regulation of glycogen, sugar, and lipid metabolism. </em>

You might be interested in
You have a gas stored in a rigid container (fixed volume). Explain the relationship between a decrease in temperature, collision
alexandr1967 [171]

Answer:

A decrease in temperature would decrease kinetic energy, therefore decreasing collisions possible.

Explanation:

A gas at a fixed volume is going to have collisions automatically. If you decrease the temperature (same thing as decreasing kinetic energy) you are cooling down the molecules in the container which gives them less energy and "relaxes" them. This decrease in energy causes them to move around much slower and causing less collisions, at a much slower rate. In a perfect world, these collisions do not slow down the molecule but we know that they do, just a very very small unmeasurable amount.

6 0
3 years ago
Calculate the average velocity of nitogen molecule at STP<br>​
JulijaS [17]

Answer:

Nitrogen molecule is 28 neuclons×1.67×10-27 kg/nucleon = 4.68 д 10-26 kg. So the average speed of a gas molecule is about 500 m/sec. This is roughly the speed of sound in a gas 340 m/sec. So the average kinetic energy of the gas molecules is related to the temperature of the gas.

I hope this is helpful

4 0
3 years ago
How many hydrogen bonds are between cytosine and guanine
Dahasolnce [82]

Answer:

3

Explanation:

5 0
2 years ago
Read 2 more answers
How much heat energy is required to raise the temperature of 0.360 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of co
AVprozaik [17]
MThe  heat  energy  required  to  raise  the  temperature   of  0.36Kg   of  copper   from   22 c   to  60  c  is  calculate  using  the  following  formula

MC delta T
m(mass)=  0.360kg  in  grams  =  0.360  x1000 = 360 g
  c(specific  heat  energy)  =  0.0920  cal/g.c
delta T =  60- 23  = 37  c

heat  energy is therefore=  360g   x0.0920 cal/g.c  x 37  c=  1225.44  cal

5 0
3 years ago
I need help!! Following measurements
Anna71 [15]
I am so sorry I do not know but I need to answer a question in order to ask one I hope u pass:))
5 0
3 years ago
Other questions:
  • Calculate the number of moles from the given number of particles. Express your answer to the correct number of significant figur
    6·2 answers
  • The quantity 44 liters expressed in cubic meters is ____.
    10·1 answer
  • A negative change in entropy indicates that...
    9·2 answers
  • The product of the nuclear reaction in which 40Ar is subjected to neutron capture followed by alpha emission is ________. The pr
    14·1 answer
  • Question 1 of 10
    8·1 answer
  • What do we use to keep track of major Earth events?​
    13·1 answer
  • Which are exmaples of chemical change?
    9·1 answer
  • Answer the question below ​
    9·1 answer
  • When the following redox equation is balanced with smallest whole number coefficients, the coefficient for nitrogen dioxide will
    7·2 answers
  • It takes 50.0 J to raise the temperature of an 10.6 g piece of unknown metal from 13.0°C to 24.9 °C.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!