Crossreactivity between the light-emitting systems of distantly related organisms: Novel type of light-emitting compound | Zendy

Jay Dunlap | Zendy; J. Woodland Hastings | Zendy; Osamu Shimomura | Zendy

Open Access

Crossreactivity between the light-emitting systems of distantly related organisms: Novel type of light-emitting compound

Author(s) -

Jay Dunlap,

J. Woodland Hastings,

Osamu Shimomura

Publication year - 1980

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.77.3.1394

Subject(s) - dinoflagellate , fluorescence , bioluminescence , luciferin , luciferase , light emission , chemistry , biochemistry , biophysics , photoprotein , luminescent measurements , luminescence , biology , photochemistry , gene , botany , materials science , optoelectronics , physics , transfection , quantum mechanics

Dinoflagellate luciferin has been found to crossreact and emit light with euphausid photoprotein; and euphausid fluorescent substance gives luminescence with dinoflagellate luciferase. Luciferin and the fluorescent substance, both highly unstable and fluorescent compounds, are biochemically similar but not identical. Preliminary spectral and chemical data suggest that both compounds contain an open-chain polypyrrole structure, novel among compounds so far known to be involved in light emission in any biological system. The dinoflagellates and euphausids are phylogenetically distant; the possibility that the latter obtain the molecule nutritionally from the former is suggested.

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