β-Turns in a Peptide Chain Form a Tight Loop with Hydrogen

question 7

Multiple Choice

β-Turns in a peptide chain form a tight loop with hydrogen bonding of the carbonyl oxygen with:

• A) side chain amine of lysine two amino acids down the chain.
• B) amide proton on the next amino acid down the chain.
• C) amide proton of the glutamine side chain.
• D) amide proton of the residue three positions down the chain.
• E) amide proton of asparagine side chain.

---

Definitions:

Profitability Index

A financial metric used to evaluate the desirability of an investment or project, calculated as the present value of future cash flows divided by the initial investment cost.

Investment Projects

Initiatives undertaken by businesses or individuals involving the allocation of resources with the expectation of future returns.

Cash Outflows

Money spent or costs incurred by a business or individual, resulting in a decrease in cash reserves.

Straight-Line Depreciation

A manner for spreading out the cost of a tangible asset across its useful life in regular yearly installments.