Which ZO protein is described as responding to epidermal growth factor signaling?

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Multiple Choice

Which ZO protein is described as responding to epidermal growth factor signaling?

Explanation:
ZO-2 is notable for its ability to respond to growth factor signals. When epidermal growth factor signaling is active, ZO-2 can be regulated in ways that impact tight junction dynamics and even influence gene expression, showing a dynamic link between extracellular cues and junctional function. The other ZO family members are mainly viewed as structural scaffolds that tether transmembrane proteins to the actin cytoskeleton, with less emphasis on direct responsiveness to growth factor signaling. Therefore, ZO-2 best fits the description of responding to epidermal growth factor signaling.

ZO-2 is notable for its ability to respond to growth factor signals. When epidermal growth factor signaling is active, ZO-2 can be regulated in ways that impact tight junction dynamics and even influence gene expression, showing a dynamic link between extracellular cues and junctional function. The other ZO family members are mainly viewed as structural scaffolds that tether transmembrane proteins to the actin cytoskeleton, with less emphasis on direct responsiveness to growth factor signaling. Therefore, ZO-2 best fits the description of responding to epidermal growth factor signaling.

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