Which of the Following Is a Characteristic of EF-Hand Proteins

question 18

Multiple Choice

Which of the following is a characteristic of EF-hand proteins?

• A)EF-hand domains usually are arranged so that 3 EF-hand domains directly contact each other.
• B)EF-hand proteins dramatically change conformation upon binding Mg²⁺ ions.
• C)CaM (an EF-hand protein)binds target protein with basic amphiphilic alpha helix (Baa helix)motifs.
• D)Conformational changes promote dissociation of the EF-hand protein from its target protein(s).

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Definitions:

Live-virus Vaccines

Vaccines that contain a version of the living virus that has been weakened so that it does not cause the disease in people with normal immune systems.

Weakened Viruses

Viruses that have been attenuated (reduced in virulence) for use in vaccines, allowing the immune system to develop immunity without causing the disease.

Immune Response

The body's defensive reaction to foreign substances or organisms, involving recognition and destruction.