Photosynthesis Research

, Volume 95, Issue 2–3, pp 147–154

Nomenclature for membrane-bound light-harvesting complexes of cyanobacteria

Mini review

Abstract

Accessory chlorophyll-binding proteins (CBP) in cyanobacteria have six transmembrane helices and about 11 conserved His residues that might participate in chlorophyll binding. In various species of cyanobacteria, the CBP proteins bind different types of chlorophylls, including chlorophylls a, b, d and divinyl-chlorophyll a, b. The CBP proteins do not belong to the light-harvesting complexes (LHC) superfamily of plant and algae. The proposed new name of CBP for this class of proteins, which is a unique accessory light-harvesting superfamily in cyanobacteria, clarifies the confusion of names of prochlorophytes chlorophyll binding protein (Pcb), PSII-like light-harvesting proteins and iron-stress-induced protein A (IsiA). The CBP complexes are a member of a larger family that includes the chlorophyll a-binding proteins CP43 and CP47 that function as core antennas of photosystem II.

Keywords

Light-harvesting protein complexes Chlorophyll-binding protein complexes Cyanobacteria Acaryochloris Prochlorophytes 

Abbreviations

CBP

Accessory chlorophyll-binding proteins

CP43/CP47

Core antenna of reaction center II

dCBP

Accessory divinylchlorophyll binding proteins

IsiA

Iron-stress-induced protein A

PBS

Phycobilisomes

Pcb

Prochlorophyte chlorophyll-binding protein complexes

PS

Photosystem

RC

Reaction center

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.School of Biological SciencesUniversity of SydneySydneyAustralia
  2. 2.School of Information TechnologiesUniversity of SydneySydneyAustralia
  3. 3.Departments of Biology and ChemistryWashington UniversitySt. LouisUSA

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