THE PRINCIPLE OF CELL SIGNALING

Reception Transduction Response

CHEMICAL SIGNALING

Paracrine signaling

Synapticsignaling

Endocrinesignaling

Local signaling Long distance signaling

CONTACT-DEPENDENT SIGNALING

Gap Junction Cell-Cell Contact

RECEPTION OF EXTRACELLULAR SIGNALS

Ion Channel-Linked Receptors

Enzyme-Linked Receptors

G-Protein Coupled Receptors Steroid Receptor

STRUCTURE OF ION CHANNEL LINKED RECEPTOR

ACTIVATION OF ION CHANNEL-LINKED RECEPTOR

Receptor Binding Ion Channel Opens

Receptor Inactivation

STRUCTURE OF G-PROTEIN LINKED RECEPTOR

ACTIVATION OF G-PROTEIN LINKED RECEPTORS

ACTIVATION OF G-PROTEIN LINKED RECEPTORS

STRUCTURE OF ENZYME-LINKED RECEPTOR

ACTIVATION OF ENZYME-LINKED RECEPTOR

Inactive Tyrosine Kinase System

Active Tyrosine Kinase System

INTRACELLULAR RECEPTOR