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Updated: Aug 11, 2026

Analysis of Protein Import into Chloroplasts Isolated from Stressed Plants
Published on: November 1, 2016
Identification by 2D-page analysis of salt-stress induced proteins in radish (Raphanus sativus)
F Lopez1, G Vansuyt, J Derancourt
1Laboratoire de Biochimie et Physiologie Végétales, CNRS URA 573, ENSAM-INRA, Montpellier, France.
Abstract:
The response of Raphanus sativus to salinity has been investigated. Salt-responsive proteins were detected by comparative 2D-PAGE analysis. Three polypeptides of 22, 28 and 28.5 kDa were isolated and subjected to microsequencing. The P22 possesses homology with members of the Kunitz family of trypsin inhibitor; the P28.5 is homologous to ascorbate peroxidase of several plant species while P28 did not exhibit significant homology with sequences archived in available databases.
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SDS-PAGE
A variation of gel electrophoresis, termed polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact proteins...

