PMID: 2118804Aug 9, 1990Paper

Genetic analysis of a 9 kDa phycocyanin-associated linker polypeptide

Biochimica Et Biophysica Acta
R de LorimierS E Stevens

Abstract

The gene encoding LR9, a 9 kDa phycocyanin-associated linker polypeptide, was cloned from the cyanobacterium Synechococcus sp. PCC 7002 (Agmenellum quadruplicatum PR-6). This gene, termed cpcD, was located immediately 3' to cpcC, a gene which encodes another phycocyanin-associated linker, LR33. Mutation of cpcD by insertion led to the loss of LR9 as the only detectable change in phycobilisome composition. Cells and isolated phycobilisomes from the cpcD- strain did not detectably differ from the wild-type in absorption or steady-state fluorescence emission. Purified phycobilisomes from the wild-type and cpcD- strains were compared by electron microscopy. The number of phycocyanin discs in the rod substructures of the mutant was more variable than in the wild-type. Hence, one function of LR9 may be to minimize the heterogeneity of rod length, possibly by binding to the core-distal face of phycocyanin-LR33 complexes to prevent the tandem joining of such units. A mutant in which cpcD and cpcC-cpcD intergenic sequences are deleted shows a partial loss of LR33. Inverted repeats in this intergenic region may be required for optimal stability of the cpcC transcript.

References

Oct 26, 1989·Biochimica Et Biophysica Acta·P MaxsonA N Glazer
Jan 1, 1985·Annual Review of Biophysics and Biophysical Chemistry·A N Glazer
Jan 1, 1983·Methods in Enzymology·D Hanahan, M Meselson
Jun 1, 1983·Hoppe-Seyler's Zeitschrift für physiologische Chemie·P FüglistallerH Zuber

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Citations

May 1, 1994·Photosynthesis Research·A N GlazerK Sauer
Dec 8, 2010·Photosynthesis Research·Guillermo Mendoza-HernándezCarlos Gómez-Lojero
Aug 14, 1992·Journal of Photochemistry and Photobiology. B, Biology·Y M GindtK Sauer
Mar 1, 1992·Plant Physiology·R M de LorimierS E Stevens
Nov 21, 2007·International Journal of Biological Sciences·Xiangyu GuanXuexi Tang
Oct 12, 2007·Journal of Biochemistry and Molecular Biology·Duvvuri Prasanna Kumar, Sistla D S Murthy
Nov 3, 2010·Journal of Molecular Biology·Liron DavidNoam Adir
Mar 2, 1999·Journal of Structural Biology·R MacColl
Jun 1, 2018·Molecular & Cellular Proteomics : MCP·Philipp SpätKarl Forchhammer
Jul 16, 2019·Biochimica Et Biophysica Acta. Bioenergetics·Noam AdirDvir Harris
Jun 26, 2021·Metabolic Engineering Communications·Anton PuzorjovAlistair J McCormick

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