Growth hormone is not a tropic hormone. This is because, unlike tropic hormones, it does not target other endocrine glands.
Growth hormone affects bones and muscles. It promotes long bone growth during the <span>formative years. It also targets many organs to stimulate growth by promoting fat breakdown and protein synthesis.</span>
Protein phosphates have the opposite effect as protein kinases. They dephosphorylate proteins. An example is the Protein phosphatase 1 that is significant to transcription regulation in the cell nucleus. If Protein phosphatases are not working, the cells would be unable to respond to environmental stimuli and would die.
