Unusual Tetrapyrrole Pigments of Photosynthetic Antennae and Reaction Centers: Specially-tailored Chlorophylls.

Autor: Jee, Govind, Grimm, Bernhard, Porra, Robert J., Rüdiger, Wolfhart, Scheer, Hugo, Kobayashi, Masami, Akiyama, Machiko, Kise, Hideo, Watanabe, Tadashi
Zdroj: Chlorophylls & Bacteriochlorophylls; 2006, p55-66, 12p
Abstrakt: Primary charge separation in photosynthesis is initiated by a few specialized chlorophyll (Chl) or bacteriochlorophyll (BChl) molecules in the reaction centers. Excitation of the primary donors leads to reduction of the primary and secondary electron acceptors, which often contain structurally distinct Chl and BChl derivatives: such specially-tailored Chls include ‘prime-type,' ‘metal-free' and ‘Zn-containing' Chls. The functions of many such pigments have long remained unclear, but recently the roles of some have been elucidated. Here, a short overview is given on the minor but specially-tailored Chls that function as key components in photosynthesis. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index