Are proteins for secretion translated while they are being transferred across the ER membrane?
Are proteins for secretion translated while they are being transferred across the ER membrane?
Homework Answers
Secretory proteins were targeted to the Endoplasmic retiuculum by the signal sequence at amino terminus,was removed duringand incorporated to the growing polypeptide chain in the ER. This wasshowed by experiments that translation of secretory protein mRNAs on free ribosomes yielded proteins that retained their signal sequences and larger than normal secreted proteins. , when microsomes added to the system, the growing polypeptide chain are incorporated into the microsomes and the signal sequences are removed by the proteolytic cleavage.
Add Answer to:
Are proteins for secretion translated while they are being
transferred across the ER membrane?
1. (1.5 pts) Entering the ER: Translocation of proteins across the membrane of the ER is usually ...
Please answer letter B!
1. (1.5 pts) Entering the ER: Translocation of proteins across the membrane of the ER is usually studied using microsomes (vesicles made from rough endoplasmic reticulum. Microsomes of the rough ER carry ribosomes attached to their outer surface. Translocation of proteins across the microsomal membrane can be assessed by several experimental criteria: (1) the newly synthesized protein is protected from added proteases, but not when detergents are present to solubilize the protecting lipid bilayer; (2) the...
QUESTION 2 Proteins are translocated into the ER lumen by being pushed by translation through the...
QUESTION 2 Proteins are translocated into the ER lumen by being pushed by translation through the lipid bilayer of the ER membrane. through an aqueous channel created by the Sec61 protein. by being pulled by BiP across the lipid bilayer of the ER membrane. by flippases.
Select all of proteins below that are made on the membrane-bound ribosomes of the rough ER?...
Select all of proteins below that are made on the membrane-bound ribosomes of the rough ER? A. ER chaperones B. Mitochondrial proteins C. Secreted Proteins D. Receptors on the plasma membrane E. Nuclear proteins F. Golgi proteins G. Cytosolic proteins
#3 2. Explain the synthesis of lipids at the ER membrane and how transmembrane proteins are...
#3
2. Explain the synthesis of lipids at the ER membrane and how transmembrane proteins are inserted. 3. Compare and contrast types of membrane transport including transport proteins.
Explain the transport of extracellular membrane proteins following their post translational modification in the ER.
Explain the transport of extracellular membrane proteins following their post translational modification in the ER.
What is Co-translational insertion of secreted and transmembrane proteins into the ER membrane including translocon, secreted...
What is Co-translational insertion of secreted and transmembrane proteins into the ER membrane including translocon, secreted proteins, type 1 transmembrane protein, type 2 transmembrane proteins?
What family of proteins facilitates the movement of water across the cell plasma membrane? Describe the...
What family of proteins facilitates the movement of water across the cell plasma membrane? Describe the structure of these proteins, and relate this structure to their function.
1.Draw the pathway to import and export proteins across the nuclear membrane. Include all parts and...
1.Draw the pathway to import and export proteins across the nuclear membrane. Include all parts and players relevant to the process. 2.Draw the process involved in the import of proteins into the matrix of the mitochondria.
Select all of the examples of protein translocation across a membrane below that directly require the...
Select all of the examples of protein translocation across a membrane below that directly require the hydrolysis of ATP to drive the process movement of a protein into the mitochondrial matrix from the cytosol recycling of the Pex5 peroxisomal receptor to a state that will bind PTS1-containing proteins in the cytosol transport of NLS-containing proteins into the nucleus by importin co-translational translocation of proteins into the ER lumen can be multiple answers
Determine whether the following classes of proteins are synthesized on free ribosomes or ER docked ribosomes....
Determine whether the following classes of proteins are synthesized on free ribosomes or ER docked ribosomes. a) Single-pass membrane proteins b) Multi-pass membrane proteins c) Peripheral membrane proteins (on the cytosolic side) d) Peripheral membrane proteins (on the luminal side) e) Peripheral membrane proteins (on the extracellular side) f) Fatty acid-anchored membrane proteins g) GPI- anchored membrane proteins - Where would a protein likely go if you were to remove a characteristic hydrophobic membrane spanning domain?
Please answer letter B!
1. (1.5 pts) Entering the ER: Translocation of proteins across the membrane of the ER is usually studied using microsomes (vesicles made from rough endoplasmic reticulum. Microsomes of the rough ER carry ribosomes attached to their outer surface. Translocation of proteins across the microsomal membrane can be assessed by several experimental criteria: (1) the newly synthesized protein is protected from added proteases, but not when detergents are present to solubilize the protecting lipid bilayer; (2) the...
QUESTION 2 Proteins are translocated into the ER lumen by being pushed by translation through the lipid bilayer of the ER membrane. through an aqueous channel created by the Sec61 protein. by being pulled by BiP across the lipid bilayer of the ER membrane. by flippases.
#3
2. Explain the synthesis of lipids at the ER membrane and how transmembrane proteins are inserted. 3. Compare and contrast types of membrane transport including transport proteins.
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago