Question

What is the term for the compact protein modules found in many intracellular signaling molecules that bind to a particular structural motif in another protein (or lipid) molecule to which the signaling protein binds?

1) Cell-surface receptors
2) Adaptors
3) Interaction domains
4) Scaffold proteins

Answer 1

Scaffold proteins. The term for compact protein modules that facilitate binding in cellular signaling is 'interaction domains'. They play a key role in signaling pathways, such as those involving phosphatidyl-inositol triphosphate, indicating a cell's ability to respond to various signals that lead to a common response.

Step-by-step explanation:

The term for the compact protein modules found in many intracellular signaling molecules that bind to a particular structural motif in another protein (or lipid) molecule to which the signaling protein binds is scaffold proteins.

The term for compact protein modules that facilitate binding in cellular signaling is 'interaction domains'. They play a key role in signaling pathways, such as those involving phosphatidyl-inositol triphosphate, indicating a cell's ability to respond to various signals that lead to a common response.

The term for the compact protein modules found in many intracellular signaling molecules that bind to a particular structural motif in another protein (or lipid) molecule to which the signaling protein binds is interaction domains. These domains are crucial for the functioning of cellular signaling pathways, including the one wherein proteins bind a molecule of phosphatidyl-inositol triphosphate, which is generated as part of cell-signaling. The presence of interaction domains in proteins implies that cells can use common signaling pathways to respond to different signals, resulting in the same response, but under varying conditions and times.