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D1 protein variants in Photosystem II from Thermosynechococcus elongatus studied by low temperature optical spectroscopy

Hughes, Joseph; Cox, Nicholas; Rutherford, Alfred W; Krausz, Elmars; Lai, Thanh-Lan; Boussac, Alain; Sugiura, Miwa

Description

In Photosystem II (PSII) from Thermosynechococcus elongatus, high-light intensity growth conditions induce the preferential expression of the psbA3 gene over the psbA1 gene. These genes encode for the D1 protein variants labeled D1:3 and D1:1, respectively. We have compared steady state absorption and photo-induced difference spectra at < 10 K of PSII containing either D1:1 or D1:3. The following differences were observed. (i) The pheophytin Qx band was red-shifted in D1:3 (547.3 nm) compared...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/58294
Source: Biochimica et Biophysica Acta: Bioenergetics
DOI: 10.1016/j.bbabio.2009.07.007

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