Shared thematic elements in photochemical reaction centers

Research output: Contribution to journalReview article

99 Scopus citations

Abstract

The structural, functional, and evolutionary relationships between photosystem II and the purple non-sulfur bacterial reaction center have been recognized for several years. These can be classified as "quinone type" (type II) photosystems because the terminal electron acceptor is a mobile quinone molecule. The analogous relationship between photosystem I and the green sulfur bacterial (and heliobacterial) reaction centers has only recently become clear. These can be classified as "iron-sulfur type" (type I) photosystems because the terminal electron acceptor consists of one or more bound iron-sulfur clusters. At a fundamental level, the quinone type and iron-sulfur type reaction centers share a common photochemical motif in the early process of charge separation, leading to the speculation that all photochemical reaction centers have a common evolutionary origin. This review summarizes the current state of knowledge in comparative reaction center biochemistry between prokaryotic bacteria, cyanobacteria, and green plants.

Original languageEnglish (US)
Pages (from-to)1642-1646
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume90
Issue number5
DOIs
StatePublished - Mar 1 1993

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Shared thematic elements in photochemical reaction centers'. Together they form a unique fingerprint.

  • Cite this