Definition of Agrin
1. adv. & a. In the act of grinning.
Definition of Agrin
1. Adjective. grinning; having happiness or satisfaction apparent on one's face ¹
2. Noun. (neuroscience) a protein involved in the formation of neuromuscular junctions during embryonic development ¹
¹ Source: wiktionary.com
Definition of Agrin
1. in the state of grinning [adv]
Medical Definition of Agrin
1.
Protein isolated from the synapse rich electric organ of Torpedo californica that induces the formation of synaptic specialisations on myotubes in culture.
Present in muscle cells before innervation and concentrated at the neuromuscular junction once AChR clustering occurs. The release of agrin from motor axon terminals is thought to trigger the formation of the postsynaptic apparatus at developing and regenerating neuromuscular junctions.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(22 Feb 2008)
Lexicographical Neighbors of Agrin
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