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© Emmanuelle Quemin
Electron micrograph of the hyperthermophilic archaea Sulfolobus islandicus strain LAL14/1.
Publication : Trends in biochemical sciences

Evolution of the haem copper oxidases superfamily: a rooting tale

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Trends in biochemical sciences - 31 Jul 2009

Gribaldo S, Talla E, Brochier-Armanet C

Link to Pubmed [PMID] – 19647436

Trends Biochem. Sci. 2009 Aug;34(8):375-81

Understanding the origin and evolution of haem copper dioxygen reductases (HCO O(2)Red), the terminal enzymes of aerobic respiratory chains, is fundamental to clarify the emergence of this important cellular process. Phylogenetic analyses of HCO O(2)Red have led to contradictory results, suggesting, in turn, that they predate oxygenic photosynthesis and already reduced oxygen as their function; they predate oxygenic photosynthesis, but did not reduce oxygen; they postdate oxygenic photosynthesis. Here, we present a discussion of current data on the distribution and phylogeny of HCO O(2)Red, which leads to a novel and clearer picture of the origin and evolution of these key enzymes as well as their function.

http://www.ncbi.nlm.nih.gov/pubmed/19647436