VEGF is synthetized in cancer cell to promote angiogenesis. Which sentence is correct

Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter9: Cell Communication
Section: Chapter Questions
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  1. VEGF is synthetized in cancer cell to promote angiogenesis. Which sentence is correct?
  1. Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is constantly active; mature VEGF chain is released to the lumen through signal peptidase cleavage.
  2. Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is activated by start-transfer sequence; mature VEGF chain is .
  3. Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is activated by start-transfer sequence; mature VEGF chain remains embedded to the membrane for further transport
  4. Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is constantly active; mature VEGF chain remains embedded to the membrane for further transport

 

 

 

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