Which of the Following Amino Acids Are Most Frequently Phosphorylated

question 17

Multiple Choice

Which of the following amino acids are most frequently phosphorylated by protein kinases in the cytoplasm during signal transduction?

• A) tyrosines
• B) glycine and histidine
• C) serine and threonine
• D) glycine and glutamic acid
• E) Any of the 20 amino acids are equally phosphorylated.

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Definitions:

Celler-Kefauver Act

A U.S. law enacted in 1950 aimed at preventing anti-competitive mergers and acquisitions that could lead to decreased competition.

Civil Aeronautics Board

A former federal agency in the United States responsible for regulating the air transport industry until its deregulation in the early 1980s.

Sherman Act

An 1890 United States antitrust law that outlaws monopolistic practices and promotes competition.

Price-fixing

An illegal agreement among competitors to set prices at a certain level, rather than competing naturally in the market.