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Proteins: Primary vs Secondary Structures

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Can there be a secondary structure without a primary structure? Why or why not?
Can there be a primary structure without a secondary structure? Why or why not?
What types of bonds are responsible for the secondary structure of a protein?
How would the addition of a heavy metal affect the secondary structure of a protein?

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The primary structure is the back-bone of the protein. Without a primary structure there is not structure at all as there is no back-bone. So no ...

Solution Summary

The solution discusses proteins, primary vs. secondary structures.

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Protein Structure Matching Questions

Match the phrases I-VI with options A-D below.

A) Secondary

B) Tertiary

C) Super-secondary

D) Domain

I) Final three-dimensional packaging of all three regions of a single polypeptide chain

II) Packing together of two or more adjacent folded sections within a contiguous piece of polypeptidechain (found to occur in many unrelated proteins)

III) Regular three dimensional folding pattern (repeating pi, psi values) of a contiguous segment of polypeptide chain

IV) Binding together and arrangement of separately folded polypeptide chains (subunits)

VI) Globular cluster of noncontiguous segments of polypeptide chain to form a unique, identifiable region of protein

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