Protein hormones bind to external receptors generating second messengers, while steroid hormones bind to internal receptors acting as transcription factors.
Las hormonas proteicas se unen a receptores externos y generan segundos mensajeros, mientras que las hormonas esteroides se unen a receptores internos y actúan como factores de transcripción.
| Front | Mode of Hormone action |
|---|---|
| Back | PROTEIN HORMONES: .bind to receptor outside cell .second messenger is generated .gene/enzyme activation etc STEROID HORMONES: .bind to receptor inside cell .hormone-receptor complex binds to promoter region and acts as transcription factor |
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