Photosynthesis Research

, Volume 95, Issue 2–3, pp 147–154 | Cite as

Nomenclature for membrane-bound light-harvesting complexes of cyanobacteria

  • Min Chen
  • Yinan Zhang
  • Robert E. Blankenship
Mini review


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.


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



Accessory chlorophyll-binding proteins


Core antenna of reaction center II


Accessory divinylchlorophyll binding proteins


Iron-stress-induced protein A




Prochlorophyte chlorophyll-binding protein complexes




Reaction center



MC is supported by a University of Sydney research fellowship and thanks the Australia Research Council for financial support. This work has been supported in part by US DOE Grant No. DE-FG02-04ER15550 to REB.


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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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