Revision of the structure of the light-emitter in aequorin bioluminescence

Abstract
The structure of the excited light-emitter in aequorin bioluminescence was assigned not to an amide anion of coelenteramide but to a phenolate anion on the basis of the luminescence of regenerated aequorin and of the fluorescence of regenerated blue fluorescent protein with coelenteramide analogues including N-methyl derivatives.