Journal
TRENDS IN PLANT SCIENCE
Volume 24, Issue 11, Pages 1008-1021Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2019.06.016
Keywords
-
Categories
Funding
- Leverhulme Trust [RPG-2017-223]
- Biotechnology and Biological Sciences Research Council [BB/K002627/1, BB/L011206/1]
- BBSRC [BB/K002627/1] Funding Source: UKRI
Ask authors/readers for more resources
One of the earliest events in the molecular evolution of photosynthesis is the structural and functional specialisation of type I (ferredoxin-reducing) and type II (quinone-reducing) reaction centres. In this opinion article we point out that the homodimeric type I reaction centre of heliobacteria has a calcium-binding site with striking structural similarities to the Mn4CaO5 duster of photosystem II. These similarities indicate that most of the structural elements required to evolve water oxidation chemistry were present in the earliest reaction centres. We suggest that the divergence of type I and type 11 reaction centres was made possible by a drastic structural shift linked to a change in redox properties that coincided with or facilitated the origin of photosynthetic water oxidation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available