FX, FA, and FB Iron-Sulfur Clusters in Type I Photosynthetic Reaction Centers

B. Jagannathan, J. H. Golbeck

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Photosynthetic reaction centers are membrane-bound pigment-protein complexes that use light to catalyze a transmembrane electron transfer against a steep thermodynamic gradient. They are found in plants and photosynthetic bacteria, and have evolved into two types. Type II reaction centers employ a mobile quinone as the terminal electron acceptor. Type I reaction centers employ an interpolypeptide [4Fe-4S] cluster (FX) as an intermediate electron acceptor and two [4Fe-4S] iron-sulfur clusters (FA and FB) as the terminal electron acceptors. This article focuses on type I reaction centers with special attention paid to the spectroscopic properties of FX, FA, and FB, and to the biochemical properties of the polypeptides that bind these iron-sulfur clusters.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Biological Chemistry
Subtitle of host publicationSecond Edition
PublisherElsevier Inc.
Pages335-342
Number of pages8
ISBN (Electronic)9780123786319
ISBN (Print)9780123786302
DOIs
StatePublished - Feb 15 2013

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)

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    Jagannathan, B., & Golbeck, J. H. (2013). FX, FA, and FB Iron-Sulfur Clusters in Type I Photosynthetic Reaction Centers. In Encyclopedia of Biological Chemistry: Second Edition (pp. 335-342). Elsevier Inc.. https://doi.org/10.1016/B978-0-12-378630-2.00184-5