Many PTB-Containing Proteins Act as Docking Sites for Multiple Proteins

question 15

Multiple Choice

Many PTB-containing proteins act as docking sites for multiple proteins.If these proteins are involved in the RTK signal transduction pathway,they most likely:

• A)contain GRB2 domains.
• B)are involved in autophosphorylation of the RTK.
• C)are phosphorylating the receptor and the docking protein.
• D)are adopting a different conformation (shape)to expand the pathways affected by ligand binding.

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