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
Problem 3ITD
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Question
- VEGF is synthetized in cancer cell to promote angiogenesis. Which sentence is correct?
- 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.
- 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 .
- 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
- 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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