Isolation and Characterization of Panax ginseng 14-3-3 Gene Family

14-3-3 proteins are a family of conserved proteins expressed in all eukaryotes. They function as regulators in signaling pathways through protein-protein interaction. These proteins have been implicated in plant metabolism, development, and responses to abiotic and biotic stresses. Here, we isolated...

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Bibliographic Details
Published in:Journal of plant biology = Singmul Hakhoe chi 2004, 47(3), , pp.167-173
Main Authors: Chung, Hwa-Jee, Park, Joo-Young, Cho, In-Sook, Hur, Cheol-Goo, Choi, Dong-Woog, Liu, Jang-Ryol
Format: Article
Language:Korean
Subjects:
14-3-3 protein
abiotic stress
Panax ginseng
phylogenetic analysis
생물학
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Summary:14-3-3 proteins are a family of conserved proteins expressed in all eukaryotes. They function as regulators in signaling pathways through protein-protein interaction. These proteins have been implicated in plant metabolism, development, and responses to abiotic and biotic stresses. Here, we isolated six cDNAs encoding 14-3-3 proteins of Panax ginseng, designated as Pg14-3-3, by searching the ginseng EST database. Their degree of amino acid identity ranged from 53 to 84％. Phylogenetic analysis showed that the Pg14-3-3 isoforms can be divided into two groups by early duplication, with one group being further split into three subgroups because of subsequent duplication events. Pg14-3-3s are differentially expressed in various root tissues and leaves, and their transcript levels are up- or down-regulated by either cold.or drought stresses. These results suggest a possible role for Pg14-3-3 proteins in abiotic stress responses.
ISSN:1226-9239
1867-0725