Look up: Aequorin

1. aequorin
   Protein (30 kD) extracted from jellyfish ( Aequorea aequorea ) that emits light in proportion to the concentration of calcium ions. Used to measure calcium concentrations, but has to be microinjected into cells. Contains EF-hand motif. See also bioluminescence.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
2. aequorin
   <chemical> A photoprotein isolated from the bioluminescent jellyfish aequorea. It emits visible light by an intramolecular reaction when a trace amount of calcium ion is added. The light-emitting moiety in the bioluminescence reaction is believed to be 2-amino-3-benzyl-5-(p-hydroxyphenyl)pyraz...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
3. aequorin
   Type: Term Pronunciation: ē′kwō-rin Definitions: 1. A luminescent protein isolated from the jellyfish Aequorea that emits blue light in the presence of even minute amounts of calcium ion; injected intracellularly, it is used to measure free calcium ion transients within cells.
   Found on http://www.medilexicon.com/medicaldictio
   
   
4. Aequorin
   `Aequorin` is a photoprotein isolated from luminescent jellyfish (like various Aequorea species, e.g., jstor = 1542194 -->--> It was originally isolated from the coelenterate by Osamu Shimomura.--> Structure: Aequorin is composed of two distinct units, the apoprotein apoaequorin, w...
   Found on http://en.wikipedia.org/wiki/Aequorin