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Multiple pathways for the targeting of thylakoid proteins in chloroplasts

Multiple pathways for the targeting of thylakoid proteins in chloroplasts
Multiple pathways for the targeting of thylakoid proteins in chloroplasts

The assembly of the photosynthetic apparatus requires the import of numerous cytosolically synthesised proteins and their correct targeting into or across the thylakoid membrane. Biochemical and genetic studies have revealed the operation of several targeting pathways for these proteins, some of which are used for thylakoid lumen proteins whereas others are utilised by membrane proteins. Some pathways can be traced back to the prokarytoic ancestors of chloroplasts but at least one pathway appears to have arisen in response to the transfer of genes from the organelle to the nucleus. In this article we review recent findings in this field that point to the operation of a mechanistically unique protein translocase in both plastids and bacteria, and we discuss emerging data that reconcile the remarkable variety of targeting pathways with the natures of the substrate precursor proteins.

Chloroplasts, Membrane proteins, Protein transport, Signal peptides, Thylakoid
0167-4412
209-221
Robinson, Colin
678e0157-d628-44e8-83de-3591b07c673f
Hynds, Peter J.
e923c757-2505-4bee-8c04-9e472e18e46d
Robinson, David
dcef4b3b-ac9b-4c1b-b8b2-1bee4b81a8cc
Mant, Alexandra
63319e45-deeb-45ad-a30d-e05b42052a0d
Robinson, Colin
678e0157-d628-44e8-83de-3591b07c673f
Hynds, Peter J.
e923c757-2505-4bee-8c04-9e472e18e46d
Robinson, David
dcef4b3b-ac9b-4c1b-b8b2-1bee4b81a8cc
Mant, Alexandra
63319e45-deeb-45ad-a30d-e05b42052a0d

Robinson, Colin, Hynds, Peter J., Robinson, David and Mant, Alexandra (1998) Multiple pathways for the targeting of thylakoid proteins in chloroplasts. Plant Molecular Biology, 38 (1-2), 209-221. (doi:10.1023/A:1006041917853).

Record type: Article

Abstract

The assembly of the photosynthetic apparatus requires the import of numerous cytosolically synthesised proteins and their correct targeting into or across the thylakoid membrane. Biochemical and genetic studies have revealed the operation of several targeting pathways for these proteins, some of which are used for thylakoid lumen proteins whereas others are utilised by membrane proteins. Some pathways can be traced back to the prokarytoic ancestors of chloroplasts but at least one pathway appears to have arisen in response to the transfer of genes from the organelle to the nucleus. In this article we review recent findings in this field that point to the operation of a mechanistically unique protein translocase in both plastids and bacteria, and we discuss emerging data that reconcile the remarkable variety of targeting pathways with the natures of the substrate precursor proteins.

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More information

Published date: September 1998
Keywords: Chloroplasts, Membrane proteins, Protein transport, Signal peptides, Thylakoid

Identifiers

Local EPrints ID: 413067
URI: http://eprints.soton.ac.uk/id/eprint/413067
ISSN: 0167-4412
PURE UUID: 972c8385-a02a-40be-a832-f34ac6eec558
ORCID for Alexandra Mant: ORCID iD orcid.org/0000-0001-7169-209X

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Date deposited: 14 Aug 2017 16:31
Last modified: 08 Jan 2022 03:00

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Contributors

Author: Colin Robinson
Author: Peter J. Hynds
Author: David Robinson
Author: Alexandra Mant ORCID iD

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