Lipid transfer in plants.

Experientia ·Vol. 46 ·No. 6 ·1990-06-15 ·Pages 579-85

Arondel V, Kader JC

Abstract

Plant cells contain cytosolic proteins, called lipid transfer proteins (LTP), which are able to facilitate in vitro intermembrane transfer of phospholipids. Proteins of this kind from three plants, purified to homogeneity, have several properties in common: molecular mass around 9 kDa, high isoelectric point, lack of specificity for phospholipids, and binding ability for fatty acids. The comparison of their amino acid sequences revealed striking homologies and conserved domains which are probably involved in their function as LTPs. These proteins could play a major role in membrane biogenesis by conveying phospholipids from their site of biosynthesis to membranes unable to form these lipids. Immunochemical methods were used to establish an in vivo correlation between membrane biogenesis and the level of LTP or the amount of LTP synthesized in vitro from mRNAs. The recent isolation of a full-length cDNA allows novel approaches to studying the participation of LTPs in the biogenesis of plant cell membranes.

MeSH Terms

Amino Acid Sequence Antigens, Plant Biological Transport Carrier Proteins/metabolism Lipid Metabolism Molecular Sequence Data Plant Proteins Plants/metabolism

Chemicals

Antigens, Plant Carrier Proteins Plant Proteins lipid transfer proteins, plant

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Arondel V

Laboratoire de Physiologie Cellulaire (U.R.A. CNRS 1180), Université Pierre et Marie Curie, Paris, France.

Kader J C

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23 references, click to expand

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Article Info

Journal

Experientia

Abbr.

Experientia

ISSN

0014-4754

DOI

10.1007/BF01939696

Published

1990-06-15

Pages

579-85

Language

English

Region

Switzerland

NLM ID

0376547

Subset

External Links

PubMed source DOI: 10.1007/BF01939696

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Lipid transfer in plants.

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