Introduction to Cell Signaling definitions Flashcards

A protein that binds to specific signal molecules, undergoing a conformational change that initiates a cellular response.

A molecule that binds to a receptor protein, causing a conformational change that triggers a cellular response.

A receptor protein binds to a signal molecule only if their shapes fit together precisely, similar to a lock and key mechanism, enabling the receptor to trigger a cellular response.

A model where a receptor protein binds to a signal molecule only if their shapes are complementary, similar to how a key fits into a lock, enabling a specific cellular response.

A response triggered by a receptor protein's shape change after binding with a complementary signal molecule, initiating a signaling pathway inside the cell.

A series of molecular events where a signal molecule binds to a receptor, causing a change in receptor shape, triggering intracellular processes that lead to a specific cellular response.

A series of molecular events where a signal binds to a receptor, causing a change in receptor shape, triggering intracellular processes that lead to a specific cellular response.

An intracellular target is a specific molecule or structure within a cell that a signal transduction pathway ultimately affects, leading to a cellular response.

A process where a single signal molecule triggers a cascade of events, resulting in a significantly amplified cellular response.

A series of chemical reactions where phosphate groups are added to proteins, altering their function and activity, often as part of signal transduction pathways.