How to Interpret Ramachandran Plots

How to Interpret Ramachandran Plots

Assessment

Interactive Video

Science, Chemistry

University

Hard

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The video tutorial explains the Ramachandran plot, a tool in biochemistry for predicting protein secondary structures. It details how to plot amino acids based on their Phi and PSI angles and interpret the plot to determine likely secondary structures. A real-life example using pyruvate kinase is provided, highlighting the plot's practical application. The tutorial also discusses the limitations and typical observations of the plot, emphasizing the restricted range of observed angles in proteins.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is a Ramachandran plot and why is it useful in biochemistry?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the types of secondary structures that can be predicted using a Ramachandran plot.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the secondary structure associated with a specific amino acid using its Phi and PSI angles?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What does the density of black dots on a Ramachandran plot indicate about the secondary structures present?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the blue regions on a Ramachandran plot?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain why certain regions of the Ramachandran plot are empty and what this implies about protein structure.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the limitations of using a Ramachandran plot for predicting secondary structures in proteins.

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