Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

R. Kouril; A.A. Arteni; J. Lax; N. Yeremenko; S. D'Haene; M. Rogner; H.C.P. Matthijs; J.P. Dekker; E.J. Boekema

doi:10.1016/j.febslet.2005.03.051

Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

R. Kouril
, A.A. Arteni
, J. Lax
, N. Yeremenko
, S. D'Haene
, M. Rogner
, H.C.P. Matthijs
, J.P. Dekker
, E.J. Boekema

Biophysics Photosynthesis/Energy

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Cyanobacteria express large quantities of the iron stress-inducible protein IsiA under iron deficiency. IsiA can assemble into numerous types of single or double rings surrounding Photosystem I. These supercomplexes are functional in light-harvesting, empty IsiA rings are effective energy dissipaters. Electron microscopy studies of these supercomplexes show that Photosystem I trimers bind 18 IsiA copies in a single ring, whereas monomers may bind up to 35 copies in two rings. Work on mutants indicates that the PsaF/J and PsaL subunits facilitate the formation of closed rings around Photosystem I monomers but are not obligatory components in the formation of Photosystem I-IsiA supercomplexes. © 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	3253-3257
Journal	FEBS Letters
Volume	579
Issue number	15
DOIs	https://doi.org/10.1016/j.febslet.2005.03.051
Publication status	Published - 2005

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Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

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10.1016/j.febslet.2005.03.051

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@article{1448288307f2439c8f2fabe1c0d48b2a,

title = "Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis",

abstract = "Cyanobacteria express large quantities of the iron stress-inducible protein IsiA under iron deficiency. IsiA can assemble into numerous types of single or double rings surrounding Photosystem I. These supercomplexes are functional in light-harvesting, empty IsiA rings are effective energy dissipaters. Electron microscopy studies of these supercomplexes show that Photosystem I trimers bind 18 IsiA copies in a single ring, whereas monomers may bind up to 35 copies in two rings. Work on mutants indicates that the PsaF/J and PsaL subunits facilitate the formation of closed rings around Photosystem I monomers but are not obligatory components in the formation of Photosystem I-IsiA supercomplexes. {\textcopyright} 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.",

author = "R. Kouril and A.A. Arteni and J. Lax and N. Yeremenko and S. D'Haene and M. Rogner and H.C.P. Matthijs and J.P. Dekker and E.J. Boekema",

note = "Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis",

year = "2005",

doi = "10.1016/j.febslet.2005.03.051",

language = "English",

volume = "579",

pages = "3253--3257",

journal = "FEBS Letters",

issn = "0014-5793",

publisher = "John Wiley and Sons Inc.",

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TY - JOUR

T1 - Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

AU - Kouril, R.

AU - Arteni, A.A.

AU - Lax, J.

AU - Yeremenko, N.

AU - D'Haene, S.

AU - Rogner, M.

AU - Matthijs, H.C.P.

AU - Dekker, J.P.

AU - Boekema, E.J.

N1 - Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

PY - 2005

Y1 - 2005

N2 - Cyanobacteria express large quantities of the iron stress-inducible protein IsiA under iron deficiency. IsiA can assemble into numerous types of single or double rings surrounding Photosystem I. These supercomplexes are functional in light-harvesting, empty IsiA rings are effective energy dissipaters. Electron microscopy studies of these supercomplexes show that Photosystem I trimers bind 18 IsiA copies in a single ring, whereas monomers may bind up to 35 copies in two rings. Work on mutants indicates that the PsaF/J and PsaL subunits facilitate the formation of closed rings around Photosystem I monomers but are not obligatory components in the formation of Photosystem I-IsiA supercomplexes. © 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

AB - Cyanobacteria express large quantities of the iron stress-inducible protein IsiA under iron deficiency. IsiA can assemble into numerous types of single or double rings surrounding Photosystem I. These supercomplexes are functional in light-harvesting, empty IsiA rings are effective energy dissipaters. Electron microscopy studies of these supercomplexes show that Photosystem I trimers bind 18 IsiA copies in a single ring, whereas monomers may bind up to 35 copies in two rings. Work on mutants indicates that the PsaF/J and PsaL subunits facilitate the formation of closed rings around Photosystem I monomers but are not obligatory components in the formation of Photosystem I-IsiA supercomplexes. © 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

U2 - 10.1016/j.febslet.2005.03.051

DO - 10.1016/j.febslet.2005.03.051

M3 - Article

SN - 0014-5793

VL - 579

SP - 3253

EP - 3257

JO - FEBS Letters

JF - FEBS Letters

IS - 15

ER -

Structure and functional role of supercomplexes of IsiA and Photosystem I in cyanobacterial photosynthesis

Abstract

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