Canadian Medical Guide > Chemicals and Drugs > Chemical Actions and Uses > Specialty Uses of Chemicals > Laboratory Chemicals > Ligands Terms and Definitions

Ligands

Medical Definition:	A molecule that binds to another molecule, used especially to refer to a small molecule that binds specifically to a larger molecule, e.g., an antigen binding to an antibody, a hormone or neurotransmitter binding to a receptor, or a substrate or allosteric effector binding to an enzyme. Ligands are also molecules that donate or accept a pair of electrons to form a coordinate covalent bond with the central metal atom of a coordination complex. (From Dorland, 27th ed)
Guide Notes:	IM for general only; usually NIM with specific cpd IM; no qualif
Previously Indexed:	Metals (1966-1972),Organometallic Compounds (1968-1972)

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