BIO 1140 Lecture Notes - Lecture 12: Exocytosis, Growth Factor, Ribosome
Document Summary
By sending a transcription factor that will trigger a signal transduction cascade. Regardless to weather the receptor to which it binds to is in the membrane or inside of the cell, the goal is to get the cell to respond to the message that we are bringing. We are going to talk about the tip of the iceberg. Relay the message and amplification for large response. They are going to bind lipophilic messenger- steroids or thyroid hormones. Signalling cell are going to release lipophilic messengers. It is going to find a receptor in the cytocol or nucleus. If it is going to find a receptor in the cytocol, they will bind together to create a transcription factor and move into the nucleus. If its receptor is in the nucleus, then it is already in the target destination: why is the target destination in the nucleus, because lipophilic messenger bound to their receptors act as transcription factors.