Membrane-bound carotenoid in micrococcus luteus protects naphthoquinone from photodynamic action

ABSTRACT ALTHOUGH carotenoid pigments are widely distributed in nature, their function is little understood. Studies of nonphotosynthetic bacteria have led to the conclusion that these

pigments are present in the plasma membrane where they protect membrane components from photo-oxidation. We report here a study of detergent-extracted carotenoid which is not protein-bound

but associated with membrane lipid. The lipid-carotenoid micelles are shown to protect naphthoquinones from photodestruction, a function attributed to the native pigment. Access through your

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INFORMATION AUTHORS AND AFFILIATIONS * Department of Biochemistry, Bedford College, London, NW1, UK M. ANWAR, T. HASAN KHAN, J. PREBBLE & P. F. ZAGALSKY Authors * M. ANWAR View author

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RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE ANWAR, M., KHAN, T., PREBBLE, J. _et al._ Membrane-bound carotenoid in _Micrococcus luteus_ protects

naphthoquinone from photodynamic action. _Nature_ 270, 538–540 (1977). https://doi.org/10.1038/270538a0 Download citation * Received: 28 July 1977 * Accepted: 18 October 1977 * Issue Date:

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