This invited paper is part of the Symposium-in-Print: Photobiology in Asia.
The 17-Propionate Function of (Bacterio)chlorophylls: Biological Implication of Their Long Esterifying Chains in Photosynthetic Systems†
Article first published online: 26 FEB 2007
Photochemistry and Photobiology
Volume 83, Issue 1, pages 152–162, January/February 2007
How to Cite
Tamiaki, H., Shibata, R. and Mizoguchi, T. (2007), The 17-Propionate Function of (Bacterio)chlorophylls: Biological Implication of Their Long Esterifying Chains in Photosynthetic Systems. Photochemistry and Photobiology, 83: 152–162. doi: 10.1562/2006-02-27-IR-819
- Issue published online: 26 FEB 2007
- Article first published online: 26 FEB 2007
- Received 27 February 2006; accepted 13 June 2006; published online 15 June 2006
Molecular structures of (bacterio)chlorophylls [=(B)Chls] in photosynthetic apparatus are surveyed, and a diversity of the ester groups of the 17-propionate substituent is particularly focused on in this review. In oxygenic photosynthetic species including green plants and algae, the ester of Chl molecules is limited to a phytyl group. Geranylgeranyl and farnesyl groups in addition to phytyl are observed in (B)Chl molecules inside photosynthetic proteins of anoxygenic bacteria. In main light-harvesting antennas of green bacteria (chlorosomes), a greater variety of ester groups including long straight chains are used in the composite BChl molecules. This diversity is ascribable to the fact that chlorosomal BChls self-aggregate to form a core part of chlorosomes without any specific interaction of oligopeptides. Biological significance of the long chains is discussed in photosynthetic apparatus, especially in chlorosomes.