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  2. Signal transduction - Wikipedia

    en.wikipedia.org/wiki/Signal_transduction

    Signal transduction is the process by which a chemical or physical signal is transmitted through a cell as a series of molecular events. Proteins responsible for detecting stimuli are generally termed receptors , although in some cases the term sensor is used. [ 1 ]

  3. Cell signaling - Wikipedia

    en.wikipedia.org/wiki/Cell_signaling

    A more complex signal transduction pathway is the MAPK/ERK pathway, ... These three steps of cell signaling all ensure that the right cells are behaving as told, at ...

  4. Biochemical cascade - Wikipedia

    en.wikipedia.org/wiki/Biochemical_cascade

    Each signal transduction occurs with a primary extracellular messenger that binds to a transmembrane or nuclear receptor, initiating intracellular signals. The complex formed produces or releases second messengers that integrate and adapt the signal, amplifying it, by activating molecular targets, which in turn trigger effectors that will lead ...

  5. JAK-STAT signaling pathway - Wikipedia

    en.wikipedia.org/wiki/JAK-STAT_signaling_pathway

    The JAK-STAT system consists of three main components: (1) a receptor (green), which penetrates the cell membrane; (2) Janus kinase (JAK) (yellow), which is bound to the receptor, and; (3) Signal Transducer and Activator of Transcription (STAT) (blue), which carries the signal into the nucleus and DNA. The red dots are phosphates.

  6. Transduction (physiology) - Wikipedia

    en.wikipedia.org/wiki/Transduction_(physiology)

    Principal steps of sensory processing. In physiology, transduction is the translation of arriving stimulus into an action potential by a sensory receptor. It begins when stimulus changes the membrane potential of a sensory receptor. A sensory receptor converts the energy in a stimulus into an electrical signal. [1]

  7. List of signalling pathways - Wikipedia

    en.wikipedia.org/wiki/List_of_signalling_pathways

    In cell biology, there are a multitude of signalling pathways. Cell signalling is part of the molecular biology system that controls and coordinates the actions of cells.. Akt/PKB signalling pathway

  8. Insulin signal transduction pathway - Wikipedia

    en.wikipedia.org/wiki/Insulin_signal...

    Signal transduction is a mechanism in which the cell responds to a signal from the environment by activating several proteins and enzymes that will give a response to the signal. Feedback mechanism might involve negative and positive feedbacks. In the negative feedback, the pathway is inhibited and the result of the transduction pathway is ...

  9. Second messenger system - Wikipedia

    en.wikipedia.org/wiki/Second_messenger_system

    An important feature of the second messenger signaling system is that second messengers may be coupled downstream to multi-cyclic kinase cascades to greatly amplify the strength of the original first messenger signal. [3] [4] For example, RasGTP signals link with the mitogen activated protein kinase (MAPK) cascade to amplify the allosteric ...