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Lhca5 interaction with plant photosystem I.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-7906-6891
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
2006 (English)In: FEBS Letters, ISSN 0014-5793, Vol. 580, no 27, 6485-8 p.Article in journal (Refereed) Published
Abstract [en]

In the outer antenna (LHCI) of higher plant photosystem I (PSI) four abundantly expressed light-harvesting protein of photosystem I (Lhca)-type proteins are organized in two heterodimeric domains (Lhca1/Lhca4 and Lhca2/Lhca3). Our cross-linking studies on PSI-LHCI preparations from wildtype Arabidopsis and pea plants indicate an exclusive interaction of the rarely expressed Lhca5 light-harvesting protein with LHCI in the Lhca2/Lhca3-site. In PSI particles with an altered LHCI composition Lhca5 assembles in the Lhca1/Lhca4 site, partly as a homodimer. This flexibility indicates a binding-competitive model for the LHCI assembly in plants regulated by molecular interactions of the Lhca proteins with the PSI core.

Place, publisher, year, edition, pages
2006. Vol. 580, no 27, 6485-8 p.
Keyword [en]
Lhca5, Light-harvesting complex I, Photosystem I, Cross-linking
Identifiers
URN: urn:nbn:se:umu:diva-14199DOI: doi:10.1016/j.febslet.2006.10.063PubMedID: 17107674OAI: oai:DiVA.org:umu-14199DiVA: diva2:153870
Available from: 2007-05-24 Created: 2007-05-24 Last updated: 2015-04-29Bibliographically approved

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CiteExportLink to record
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