Chaetopterus Photoprotein: Crystallization and Cofactor Requirements for Bioluminescence
- 15 March 1968
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 159 (3820) , 1239-1240
- https://doi.org/10.1126/science.159.3820.1239
Abstract
The Chaetopterus photoprotein has been isolated in an amorphous form (molecular weight, 120,000) whlich in (NH4)2SO4 sollutionl converts to a crystalline form (molecular weight, 184,000) having the same specific light-emittinig activity; quantum yields are 0.0093 and 0.0143, respectively. Two new cofactor reqluirements have been separated fronm impure extracts: a macromnolecule resembling a nucleoprotein, and a lipid-like substance.Keywords
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- Bioluminescence* *Grateful acknowledgement is made for aid to this paper by NSF grant GB-4086 to, and ONR contract Nonr 4246 (00) with, Princeton University, and by the staff of the Kristinebergs Zoologiska Station, Fiskebäckskil, Sweden, who kindly provided helpful library and other facilities during the completion of the manuscript. Appreciation is expressed also for the permissions received from authors and publishers to include previously published figures from the sources indicated.Published by Elsevier ,1967
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