
Abstract
Chromophores of C-phycocyanin and phycoerythrο-cyanin have been chemically modified by reduction to rubins , bleaching , photoisomerization , or perturbation with bulky substituents. Pigments containing modified chromophores, or hybrids containing modified and unmodified chromophores in individual protomers have been prepared. All modifications inhibit the association of the (aß)-protomers of these pigments to higher aggregates. The results demonstrate a pronounced effect of the state of the chromophores on biliprotein quaternary structure. It may be important in phycobi1isome assembly , and also in the dual function of biliproteins as (i) antenna pigments for photosynthesis and (ii) reaction centers for photomor-phogenesis.
Item Type: | Book Section |
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Faculties: | Biology |
Subjects: | 500 Science > 570 Life sciences; biology |
URN: | urn:nbn:de:bvb:19-epub-2311-9 |
Place of Publication: | New York |
Signature: | BSB:4 Z 74.93-2 |
Language: | English |
Item ID: | 2311 |
Date Deposited: | 14. Mar 2008, 14:03 |
Last Modified: | 04. Nov 2020, 12:46 |