____ of Tyr⁵²⁷ in the SH2 Domain of Protein Tyrosine

question 19

Multiple Choice

____ of Tyr⁵²⁷ in the SH2 domain of protein tyrosine kinase pp60^c−src ____ tyrosine kinase activity by moving an "activation loop" ____ the active site.

• A) Phosphorylation; activates; away from
• B) Phosphorylation; inhibits; into
• C) Dephosphorylation; inhibits; away from
• D) Dephosphorylation; activates; into
• E) none are true

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Definitions:

Medulla Oblongata

The lower portion of the brainstem, controlling vital body functions such as breathing, heart rate, and blood pressure.

Midbrain

A portion of the brainstem that plays an important role in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Pons

A part of the brain located above the medulla oblongata and in front of the cerebellum, playing key roles in the regulation of breathing and sleep.

Hypothalamus

A region of the brain that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.