Proteins have roles in hormone synthesis

Hormones are substances produced by the endocrine glands. Proteins are responsible for hormone synthesis. Many hormones are made from protein.

The hormone is produced from an endocrine gland when the endocrine gland is stimulated. The hormone is then released into the blood circulation to its target cell. In the target cell, the hormone conveys a signal to initiate a specific reaction or cellular process.

For example, insulin is a hormone secreted by the pancreas to regulate the level of blood glucose. After eating a meal, your blood glucose levels rise. The pancreas releases the hormone insulin in response to the increased blood glucose. Insulin tells body cells that glucose is available and to take up from the blood and either store it or use it for making energy or building other molecules and substances for the body's use.