BIOL 300 Lecture Notes - Lecture 32: Membrane Transport Protein, Prokaryote, Allele
Document Summary
Steroid hormones have widely different effects that depend on relatively small chemical. Carrier proteins carry the steroid hormones derived from cholesterol and have 4 carbon rings and the carrier protein steroid complex collides with the surface of a cell and the hormone is released and goes into the cell. The hormone then binds to its internal receptor. Even though this is small it can have a large difference. For example testosterone vs. estrogen have small differences but in the end, they result in either a male or a female who are two distinct and different human beings. The response of a cell to steroid hormones depends on its internal receptors and the genes. The steroid hormone nuclear complex has two domains. One that binds to the steroid hormone. Another that interacts with the target dene. When a steroid hormone combines with the receptor, it changes the receptors shape allowing it to interact with the genes area the hormone will affect.
