The Most Common Motif Found in Membrane-Spanning Proteins Is

question 44

Multiple Choice

The most common motif found in membrane-spanning proteins is:

• A) α helices of nonpolar amino acids that pass through the membrane.
• B) αhelices of charged amino acids that form channels via extensive hydrogen bonding.
• C) a triple helix of ɑ helices.
• D) a helix-turn-helix arrangement of the peptide strands.
• E) None of the above.

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Definitions:

Discount Rate

The interest rate used in determining the present value of future cash flows or in evaluating the attractiveness of an investment.

Project Cash Flows

The net amount of cash that is generated or expended by a particular project or investment, after accounting for all inflows and outflows.

Project Profitability Index

The ratio of the net present value of a project’s cash flows to the investment required.

Net Present Values

refers to the calculation that determines the present value of a series of future cash flows by discounting them at a certain rate, often used for assessing the profitability of investments.