ligand

Any molecule that binds to another; in normal usage a soluble molecule such as a hormone or neurotransmitter, that binds to a receptor. The decision as to which is the ligand and which the receptor is often a little arbitrary when the broader sense of receptor is used (where there is no implication of transduction of signal). In these cases it is probably a good rule to consider the ligand to be the smaller of the two - thus in a lectin-sugar interaction, the sugar would be the ligand (even though it is attached to a much larger molecule, recognition is of the saccharide). ...

Ligand

a protein molecule which binds to another specific protein molecule. The forces of the bond are week and thus protein-ligand bonds depend on close fit of one molecule to the other, so as to capture as many bonding sites as possible. Ligands are specific for a particular protein. They are found on cell surfaces of microorganisms where they assist in...
Found on http://www.encyclo.co.uk/local/20169

ligand

[n] - an atom or molecule or radical or ion that forms a complex around a central atom
Found on http://www.webdictionary.co.uk/definition.php?query=ligand

ligand

If it is possible to indicate a 'central atom' in a polyatomic molecular entity , the atoms or groups bound to that atom are called ligands. (Cf. IUPAC INORGANIC NOMENCLATURE (1990); Rule I-10.2.3.) The term is generally used in connection with metallic 'central atoms'. In biochemistry a part of a polyatomic molecular entity may be considered centr...
Found on http://www.chem.qmul.ac.uk/iupac/gtpoc/KL.html

Ligand

A small molecule that binds specifically to a larger one; for example, a hormone is the ligand for its specific protein receptor.
Found on http://www.combichemistry.com/glossary_k.html

Ligand

A Lewis base in a coordination compound.
Found on http://www.encyclo.co.uk/local/20728

ligand

1. In inorganic chemistry, a molecule or ion that binds to a metal cation to form a complex. 2. In biochemistry, a molecule that binds to a receptor, having a biological effect.
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/l.shtml

ligand

Ligand is an ion (F-, Cl-, Br-, I-, S2-, CN-, NCS-, OH-, NH2-) or molecule (NH3, H2O, NO, CO) that donates a pair of electron to a metal atom or ion in forming a coordination complex.
Found on http://www.ktf-split.hr/periodni/en/abc/l.html

Ligand

A molecule or ion bonded to a central metal atom or ion in a coordination compound.
Found on http://www.chemicalglossary.net/definition/1005-Ligand

Ligand

An ion, a molecule, or a molecular group that binds to another chemical entity to form a larger complex.
Found on http://www.encyclo.co.uk/local/20741

ligand

The molecule, ion, or group bound to the central atom in a chelate or a coordination compound.
Found on http://www.encyclo.co.uk/local/20742

Ligand

is a substance that binds to a membrane receptor or ion channel. Most ligands are either neurotransmitters, hormones or drugs
Found on http://www.medicalneuroscience.com/ngloss.htm

Ligand

Ligand: A molecule that binds to another. Often, a soluble molecule such as a hormone or neurotransmitter that binds to a receptor. From the Latin ligandus, binding from the root ligare, to bind or tie. Ligate and ligature come from the same root.
Found on http://www.medterms.com/script/main/art.asp?articlekey=22761

ligand

<chemistry, immunology> Any molecule that binds to another, in normal usage a soluble molecule such as a hormone or neurotransmitter, that binds to a receptor. The decision as to which is the ligand and which the receptor is often a little arbitrary when the broader sense of receptor is used (where there is no implication of transduction of s...
Found on http://www.encyclo.co.uk/local/20973

ligand

noun an atom or molecule or radical or ion that forms a complex around a central atom
Found on http://wordnetweb.princeton.edu/perl/webwn?s=ligand

ligand

(li´gand) (lig´әnd) 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.
Found on http://www.encyclo.co.uk/local/21001

ligand

in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. The atoms and ... [5 related articles]
Found on http://www.britannica.com/eb/a-z/l/49

ligand

The molecule, ion, or group bound to the central atom in a chelate or a coordination compound
Found on http://www.encyclo.co.uk/local/21115

ligand

An ion or molecule linked to a central metal ion to form a so-called complex compound. Almost any ion or molecule that can act as a base, having an atom able to donate an electron-pair, may act as a ligand – common examples include water (H2O), ammonia (NH3
Found on http://www.daviddarling.info/encyclopedia/L/ligand.html

ligand

ligand (lig'und) , charged or uncharged molecule with one or more unshared pairs of electrons that can attach to a central metallic atom or ion to form an aggregate known as a complex ion (see chemical bond). Some ligands that share electrons with metals form very stable complexes. Some common b...
Found on http://www.infoplease.com/ce6/sci/A0829743.html

ligand

Type: Term Pronunciation: lig′and, lī′gand Definitions: 1. Any individual atom, group, or molecule attached to a central metal ion by multiple coordinate bonds, the porphyrin portion of heme, the corrin nucleus of the B12 vitamins. 2. An organic molecule attached to a tracer element, a radioisotope. 3. A molecule that binds to a ma...
Found on http://www.medilexicon.com/medicaldictionary.php?t=50186

Ligand

In Biochemistry: substance that binds to a biological receptor. In Chemistry: an atom or group of atoms.
Found on http://www.drugdesign.com/web/teaching/glossary

Ligand

A small molecule that binds specifically to a larger one; for example, a hormone is the ligand for its specific protein receptor.
Found on http://www.combichemistry.com/glossary_k.html

Ligand

A Lewis base in a coordination compound.
Found on http://www.chemistry-dictionary.com/definition/ligand.php

Ligand

[biochemistry] In biochemistry and pharmacology, a ligand (from the Latin ligandum, binding) is a substance (usually a small molecule) that forms a complex with a biomolecule to serve a biological purpose. In protein-ligand binding, the ligand is usually a signal-triggering molecule, binding to a site on a target protein. In DNA-ligand bind...
Found on http://en.wikipedia.org/wiki/Ligand_(biochemistry)
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