The chemical signals begun at a matrix receptor reach the nucleus and do what?

1. A matrix molecule binds a receptor and the receptor changes shape. 2. The receptor then changes the conformation of the microfilaments just inside the membrane. 3. Those conformational changes induce chemical signals inside the cell. 4. The signals reach the nucleus and switch the transcription of specific sections of DNA on or off. 5. Changing transcription changes the production of the associated proteins. 6. That in turn changes the activities taking place within the cell, which is the point of the whole chain. 7. The nuclear step is switching DNA transcription on or off. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.6 Connections between Cells and Cellular Activities_