题目
BIOL3611.13541.202610 ClassMeeting7
单项选择题
Anfinsen experiment demonstrated that protein......... is encoded in a protein's ...............................structure and was dependent on the ................................of Ribonuclease A
选项
A.structure/secondary/folding
B.folding/secondary/performance
C.folding/primary/activity
D.structure/tertiary/activity
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标准答案
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思路分析
Clarifying the prompt, we’re asked to evaluate which statement about the Anfinsen experiment is correct and why.
Option 1: 'structure/secondary/folding' claims that the protein's structure is encoded in its secondary structure and that folding relates to secondary structure. This is not aligned with Anfinsen’s key insight, which emphasizes the primary sequence (not secondary) as the encoding s......Login to view full explanation登录即可查看完整答案
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类似问题
Gene expression is considered “complete” when:
Protein disulfide isomerase (PDI) is a protein folding enzyme that catalyzes disulfide–sulfhydryl exchange reactions. Ribonuclease is an enzyme with two β‑sheets, three α‑helices, and four disulfide bridges critical to the stability of its structure. PDI rapidly converts inactive, scrambled ribonuclease to enzymatically active ribonuclease. This process is driven by the decrease in free energy as the scrambled conformations are converted into the stable, active conformation of the enzyme. In contrast, PDI rapidly inactivates insulin, a protein that forms an hexamer of alpha and beta subunits. What does PDI's effect on insulin imply about the structure of insulin?
The Anfinsen experiment we discussed in our meetings showed that protein folding is encoded in the primary structure of a protein. Anfinsen did his experiment at a concentration of 1mg/mL. Choose from the answers below the one you believe represents best what would have ahppened if he used instead the physiological concentration of ribonuclease (~100mg/mL).
Fill in the boxes and the titles of the figure shown above
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