Banasthali Vidyapith
Department of Bioscience and Biotechnology
Signal Transduction Pathway
,The general flow of information
during cell signalling
, • Cells communicate to each other by sending and receiving the signalling
molecules.
• The signalling molecules can come form the environment (heat, cold, touch,
sound, smell, test) or it may come from the another cell.
• If it is coning from another cell then it is necessary for target cell function and survival
• 3 steps in signal transduction:
• 1. Reception: Attachment of the signalling molecule to the cell surface receptors
• 2. Transduction: Transmission of signal from outside of the cell to inside of the cell
• 3. Response: Response of the cell after receiving of the signal
This process of converting extracellular signals into cellular response is the STP
Department of Bioscience and Biotechnology
Signal Transduction Pathway
,The general flow of information
during cell signalling
, • Cells communicate to each other by sending and receiving the signalling
molecules.
• The signalling molecules can come form the environment (heat, cold, touch,
sound, smell, test) or it may come from the another cell.
• If it is coning from another cell then it is necessary for target cell function and survival
• 3 steps in signal transduction:
• 1. Reception: Attachment of the signalling molecule to the cell surface receptors
• 2. Transduction: Transmission of signal from outside of the cell to inside of the cell
• 3. Response: Response of the cell after receiving of the signal
This process of converting extracellular signals into cellular response is the STP
