SRP: adapting to life in the chloroplast

The signal recognition particle (SRP) has evolved in chloroplasts to include new components, new ways of recognizing targeting substrates and new capabilities that prevent aggregation of protein-targeting substrates or even rescue substrates from an aggregated conformation. Unique attributes of chlo...

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Bibliographic Details
Published inNature structural & molecular biology Vol. 17; no. 6; pp. 676 - 677
Main Author Henry, Ralph L
Format Journal Article
LanguageEnglish
Published United States Nature Publishing Group 01.06.2010
Subjects
Binding proteins
Biological Evolution
Chlorophyll
Chloroplasts
Chloroplasts - genetics
Chloroplasts - metabolism
Ecological adaptation
Light-Harvesting Protein Complexes - genetics
Light-Harvesting Protein Complexes - metabolism
Models, Biological
Molecular biology
Physiological aspects
Post-translational modification
Protein Processing, Post-Translational
Proteins
Ribonucleoproteins
Signal Recognition Particle - genetics
Signal Recognition Particle - metabolism
Signal Transduction
Substrates
Thylakoids - metabolism
United States
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Summary:The signal recognition particle (SRP) has evolved in chloroplasts to include new components, new ways of recognizing targeting substrates and new capabilities that prevent aggregation of protein-targeting substrates or even rescue substrates from an aggregated conformation. Unique attributes of chloroplast SRP are focused toward localizing a single family of nuclear-encoded chlorophyll-binding proteins to thylakoid membranes and suggest that the successful migration of this gene family to the nucleus was tied to evolutionary adaptations in chloroplast SRP.
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ISSN:1545-9993
1545-9985
DOI:10.1038/nsmb0610-676