Photosynth Res. 2008 Sep;97(3):255-61. Epub 2008 Sep 3.

Tracking the molecular evolution of photosynthesis through characterization of atomic contents of the photosynthetic units.

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School of Biological Sciences, University of Sydney, Sydney, NSW, 2006, Australia. minchen@bio.usyd.edu.au

Abstract

Oxygen molecules have a great impact on protein evolution. We have performed a comparative study of key photosynthetic proteins in order to seek the answer to the question; did the evolutionary substitution of oxygen- and nitrogen-containing residues in the photosynthetic proteins correspond to nutrient constraints and metabolic optimization? The D1 peptide in RC II complexes has higher oxygen-containing amino acid residues and PufL/PufM have lower oxygen content in their peptides. In this article, we also discuss the possible influences of micro-environment and the available nutrients on the protein structure and their atomic distribution.

PMID:: 18766462; [PubMed - indexed for MEDLINE]

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