Atyrosine kinase receptor is different from a g-protein linked receptor in that it can trigger at the same time. when both are in their receptor sites, the molecules form a dimer – two molecules joined together. atp is converted to adp and the gets attached to the tyrosine molecules. the addition of the causes a cascade of cellular responses.

multiple pathwaysligands/signaling moleculesinorganic phosphateinactive relay proteins

Explanation:

Receptor Tyrosine Kinase:

Receptor tyrosine kinase (RTK) is the largest class of enzyme linked cell surface receptors.When a growth factor or a ligand binds to two neighboring RTK receptors, the two receptors bind together and form a dimer. This change in the conformation of the RTKs activates the associated tyrosine kinase enzymes.Tyrosine kinases break down ATP to ADP and phosphorylate the RTKs. Cross phosphorylation between the receptors helps activate multiple tyrosine kinases on the neighboring RTK. Once phosphorylated, the cytoplasmic ends of the RTKs are available for docking by relay proteins or signaling molecules with an SH-2 domain.

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