effector

effector /ef·fec·tor/ (ĕ-fek´ter)

1. an agent that mediates a specific effect.

2. an organ that produces an effect in response to nerve stimulation.

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allosteric effector  an enzyme inhibitor or activator that has its effect at a site other than the catalytic site of the enzyme.

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ef·fec·tor (-fktr)

n.

1. A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.

2. A nerve ending that carries impulses to a muscle, gland, or organ and activates muscle contraction or glandular secretion.

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effector

[ifek′tər]

Etymology: L, efficere, to accomplish

1 an organ that produces an effect, such as glandular secretion, as a result of nerve stimulation.

2 a molecule, such as an enzyme, that can start or stop a chemical reaction.

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effector (ēfek´tur),

n 1. a motor or secretory nerve ending in an organ, gland, or muscle; consequently called an
effector organ. n 2. an on-the-job organ of the body that responds to stimulations asking for corrections. Antonym: receptor.

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effector

1. a muscle or gland that contracts or secretes, respectively, in direct response to nerve impulses.

2. a molecule that binds to an enzyme with an effect on its catalytic activity, i.e. either an activator or inhibitor.

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allosteric effector

one that binds to an enzyme at a site other than the active site.

effector cell

cell in the immune system that mediates an immune function.

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effector

An organ, such as a gland or muscle, that responds to a motor stimulation. See Allosteric effector.