What do steroid hormone signaling and receptor tyrosine kinase (RTK) signaling have in common? Their pathways involve G-proteins that are activated by GDP-GTP exchange. They both result in gene transcription. They both use the second messenger cAMP. The receptors are both enzymes.

What do steroid hormone signaling and receptor tyrosine kinase (RTK) signaling have in common? Their pathways involve G-proteins that are activated by GDP-GTP exchange. They both result in gene transcription. They both use the second messenger cAMP. The receptors are both enzymes.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter32: The Reception And Transmission Of Extracellular Information

Section: Chapter Questions

Problem 6P

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Concept explainers

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.

Question

What do steroid hormone signaling and receptor tyrosine kinase (RTK) signaling have in common?

		Their pathways involve G-proteins that are activated by GDP-GTP exchange.
		They both result in gene transcription.
		They both use the second messenger cAMP.
		The receptors are both enzymes.

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