Steroid receptor

... water that can be transported through the membrane. Aldosterone is a steroid, so what it does is to interact with a nuclear receptor that eventually turns on the transcription of a gene encoding a Sodium channel.

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... bound to protein in the blood. Here your textbook is referring to the steroid hormones of course. they are bound noncovalently to protein in the ... of unbound hormone that can diffuse inside the cell to bind a nuclear receptor. No, they are not. You are thinking cholesterol, which is transported ...

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Estrogen is not one hormone, it is the name used to denote either of two steroid hormones. These hormones are noted for their role in the development ... via passive diffusion and binds to specific proteins called estrogen receptors,which reside in the cell nuclei. In the absence of estrogen, these ...

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... of those proteins are for the cell membrane - transport proteins and receptor proteins for hormones etc... Other proteins are called enzymes which ... the manufacture of other biomolecules, for example the manufacture of steroid hormones in the smooth endoplasmic reticulum.

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... into the cell while protein hormones cannot but must attach to the receptor site on the cell membrane? :? EDIT: Sorry, I posted in the wrong subforum. :oops: Because sex hormones are steroid/lipid so that they will easily diffuse through plasma membrane. Inside the ...

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