HIV-1 Protease Is Different from Most Mammalian Aspartic Acid Proteases

question 24

Multiple Choice

HIV-1 protease is different from most mammalian aspartic acid proteases in that it has:

• A) two subunits each with a two-aspartate active site.
• B) two subunits each contributing an aspartate to the active site.
• C) two active sites on one protein.
• D) two subunits, one with an active site, and the other with a regulatory activity.
• E) none of the above.

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Definitions:

Economic Profit

The difference between total revenue and total costs, where costs include both explicit and implicit costs.

Competitive Firm

A company that operates in a market where it must take the prevailing market price as given because the firm's individual sales do not significantly affect the market price.

Total Revenue

The total income generated by a firm from selling its goods or services, calculated as the price per unit times the number of units sold.

Output Units

Refers to the quantity of goods or services produced within a given time frame.