Oba Y, Tsuduki H, Kato SI, Ojika M, Inouye S. Identification of the luciferin-luciferase system and quantification of coelenterazine by mass spectrometry in the deep-sea luminous ostracod Conchoecia pseudodiscophora.
Chembiochem 2005;
5:1495-9. [PMID:
15515099 DOI:
10.1002/cbic.200400102]
[Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The bioluminescence system of the ostracod Conchoecia pseudodiscophora, which is abundant in the Sea of Japan, has been characterized. The luminescence (lambda(max)=463 nm) is produced by a luciferin-luciferase reaction, and the luciferin has been identified as coelenterazine. Coelenterazine, coelenteramide, and coelenteramine from C. pseudodiscophora were quantified by LC-ESI-MS/MS analysis. The coelenterazine content was estimated to be approximately 230 pg per animal by using a calibration curve of synthetic coelenterazine. The reaction between homogenates of C. pseudodiscophora and synthetic coelenterazine showed luminescence activity; this suggests that a coelenterazine-type luciferase is present.
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