Steroids hormones exert their effects
by binding to
Steroid hormones cross the cell membrane and bind to specific receptors within the cell. These receptors are transcription factors that are active only in the presence of particular hormones. The hormone-tran­scription factor complex binds to steroid hormone responsive elements in DNA to influence transcription from steroid-sensitive genes. Thyroid hormone, reti­noic acid, and 1,25-dihydroxycholecalciferol exert their effects in a similar way.
Cell surface receptors
G proteins
Transcription factors
Cyclic adenosine monophophate (AMP)