ligand /li·gand/ (li´gand) (lig´and) an organic molecule that donates the necessary electrons to form coordinate covalent bonds with metallic ions. Also, an ion or molecule that reacts to form a complex with another molecule.
ligand
ligand
li·gand (l  g nd, l gnd)n. An ion, a molecule, or a molecular group that binds to another chemical entity to form a larger complex. |
ligand
[lig′ənd, lī′gənd]
Etymology: L, ligare, to bind
1 a molecule, ion, or group bound to the central metal atom of a chemical compound, such as the oxygen molecule in oxyhemoglobin, which is bound to the central iron atom.
2 an organic molecule attached to a specific site on a cell surface or to a tracer element. The binding is reversible in a competitive binding assay. It may be the analyte or a cross-reactant. Examples include vitamin B12, a ligand with intrinsic factor as the binding protein, and various antigens, which are ligands with antibody-binding proteins.
ligand
(līg
nd),
n 1. a molecule, ion, or group bound to the central atom of a chemical compound, such as the oxygen molecule in hemoglobin, which is bound to the central iron atom.
2. an organic molecule attached to a specific site on a surface or to a tracer element.
nd), n 1. a molecule, ion, or group bound to the central atom of a chemical compound, such as the oxygen molecule in hemoglobin, which is bound to the central iron atom.
2. an organic molecule attached to a specific site on a surface or to a tracer element.
ligand
an organic molecule that donates the necessary electrons to form coordinate covalent bonds with metallic ions. Also, an ion or part of a molecule that specifically binds to form a complex with another molecule.
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