Targeting of proteins into and across the thylakoid membrane
Targeting of proteins into and across the thylakoid membrane
The assembly of the photosynthetic apparatus utilizes component proteins that are synthesized by two genomes and then targeted into and across the thylakoid membrane. The emerging picture is one of a remarkably complex system of protein trafficking, in which at least four distinct pathways operate within the chloroplast - two for lumenal proteins and two for integral membrane proteins. Some of the pathways can be traced back to the prokaryotic ancestor of the chloroplast, whereas others appear to have arisen more recently - one in response to the transfer of genes to the plant nucleus and another, possibly, in response to the acquisition of new photosynthetic proteins. Remarkably, proteins in three of these pathways are synthesized with clearable signal-type peptides that are almost identical in overall structure, yet that execute entirely different functions. Recent studies have begun to reconcile the function of these targeting signals with the nature of the protein being targeted.
431-437
Robinson, Colin
678e0157-d628-44e8-83de-3591b07c673f
Mant, Alexandra
63319e45-deeb-45ad-a30d-e05b42052a0d
November 1997
Robinson, Colin
678e0157-d628-44e8-83de-3591b07c673f
Mant, Alexandra
63319e45-deeb-45ad-a30d-e05b42052a0d
Robinson, Colin and Mant, Alexandra
(1997)
Targeting of proteins into and across the thylakoid membrane.
Trends in Plant Science, 2 (11), .
(doi:10.1016/S1360-1385(97)90027-3).
Abstract
The assembly of the photosynthetic apparatus utilizes component proteins that are synthesized by two genomes and then targeted into and across the thylakoid membrane. The emerging picture is one of a remarkably complex system of protein trafficking, in which at least four distinct pathways operate within the chloroplast - two for lumenal proteins and two for integral membrane proteins. Some of the pathways can be traced back to the prokaryotic ancestor of the chloroplast, whereas others appear to have arisen more recently - one in response to the transfer of genes to the plant nucleus and another, possibly, in response to the acquisition of new photosynthetic proteins. Remarkably, proteins in three of these pathways are synthesized with clearable signal-type peptides that are almost identical in overall structure, yet that execute entirely different functions. Recent studies have begun to reconcile the function of these targeting signals with the nature of the protein being targeted.
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Published date: November 1997
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Local EPrints ID: 413063
URI: http://eprints.soton.ac.uk/id/eprint/413063
ISSN: 1360-1385
PURE UUID: 463dd9c4-3df3-40bc-b4ef-c8b338dc7966
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Date deposited: 14 Aug 2017 16:31
Last modified: 16 Mar 2024 03:40
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Author:
Colin Robinson
Author:
Alexandra Mant
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