The Outer Membrane Protein E24 of Spinach Chloroplast Envelope: Cloning of a cDNA and Topological Insertion of the Protein in the Membrane

Teyssier, Emeline; Ma, Block; Garin, Jérôme; Joyard, Jacques; Douce, Roland

doi:10.1007/978-94-009-0173-5_1033

Cited by 3 publications

(2 citation statements)

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“…IEP37 is the most conspicuous one. This major inner envelope membrane protein is a SAM-dependent methyltransferase (Teyssier et al 1995) committed to the biosynthesis of plastid prenylquinones (Motohashi et al 2003). These observations are strong arguments in favor of a major role of envelope membranes in the biosynthesis of plastid prenylquinones.…”

Section: Quinonesmentioning

confidence: 99%

Chloroplast envelope membranes: a dynamic interface between plastids and the cytosol

et al. 2007

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Chloroplasts are bounded by a pair of outer membranes, the envelope, that is the only permanent membrane structure of the different types of plastids. Chloroplasts have had a long and complex evolutionary past and integration of the envelope membranes in cellular functions is the result of this evolution. Plastid envelope membranes contain a wide diversity of lipids and terpenoid compounds serving numerous biochemical functions and the flexibility of their biosynthetic pathways allow plants to adapt to fluctuating environmental conditions (for instance phosphate deprivation). A large body of knowledge has been generated by proteomic studies targeted to envelope membranes, thus revealing an unexpected complexity of this membrane system. For instance, new transport systems for metabolites and ions have been identified in envelope membranes and new routes for the import of chloroplast-specific proteins have been identified. The picture emerging from our present understanding of plastid envelope membranes is that of a key player in plastid biogenesis and the co-ordinated gene expression of plastid-specific protein (owing to chlorophyll precursors), of a major hub for integration of metabolic and ionic networks in cell metabolism, of a flexible system that can divide, produce dynamic extensions and interact with other cell constituents. Envelope membranes are indeed one of the most complex and dynamic system within a plant cell. In this review, we present an overview of envelope constituents together with recent insights into the major functions fulfilled by envelope membranes and their dynamics within plant cells.

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Section: Quinonesmentioning

confidence: 99%

Chloroplast envelope membranes: a dynamic interface between plastids and the cytosol

et al. 2007

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“…can be subdivided into two different classes: first, those proteins like Oep7 (Salomon et al, 1990), Omp24 (Fischer et al, 1994;Teyssier et al, 1995), Oep14 (Li et al, 1991), and Toc34 (Seedorf et al, 1995) which are anchored into the membrane by a single transmembrane region, most likely forming a helical structure. The second class comprises the pore forming proteins Oep16 (Pohlmeyer et al, 1997), Oep21 (Bölter et al, 1999), Oep24 (Pohlmeyer et al, 1998), and Oep37 embedded into the membrane by multiple transmembrane segments.…”

Section: Building the Barrier -Insertion Of Outer Envelope Proteinsmentioning

confidence: 99%