Role of Ubiquitin in cell –
Correct Answer: Energy dependent protein degradation
Description: Ans. is 'c' i.e., Energy dependent protein degradation o There are two major enzyme systems responsible for degradation of damaged or unneeded proteins1) Ubiquitin-proteosome proteolytic pathway# Defective protein is first covalently attached to ubiquitin. Covalent bond is formed between glycine (a- carboxyl group) of ubiquitin and lysine (amino group) of target protein.# Ubiquitinated protein is then degraded in proteosomes by ATP dependent (energy dependent) mechanism.2) Lysomes# Proteins are degraded by proteolytic enzymes which is energy independent (non-energy dependent).
Category:
Biochemistry
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now