Multiple genes encoding serine/threonine protein phosphatases and their differential expression in Nicotiana tabacum

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Title
Multiple genes encoding serine/threonine protein phosphatases and their differential expression in Nicotiana tabacum
Author(s)
Mi Chung Suh; Hye Sun Cho; Youn Sung Kim; Jang Ryol Liu; Hyun Sook Lee
Bibliographic Citation
Plant Molecular Biology, vol. 36, pp. 315-322
Publication Year
1998
Abstract
Five cDNA clones encoding the catalytic subunits of Ser/Thr protein phosphatases (PP) of Nicotiana tabacum were described. Among them, three clones (NPP1, NPP2, and NPP3) encoded type 1 PP (PP1), whereas the rest of the clones (NPP4 and NPP5) encoded type 2A PP (PP2A). These cDNA clones exhibited high sequence identity in the PP core region to the corresponding genes from animals and plants. NPP1 mRNA was predominantly expressed in flowers, whereas NPP5 mRNA was mainly detected in leaves and flowers. Inn contrast, the transcripts of NPP2, NPP3, and NPP4 genes were present in all tissues examined. Throughout flower development, NPP1, NPP2, NPP5 mRNAs were expressed without any significant variation at the steady-state level. Genomic Southern blot showed that tobacco genome contained multiple genes and/or pseudogenes for both type 1 and type 2A phosphatases.
Keyword
cDNA cloningSer/Thr protein phosphataseNicotiana tabacummultigene family
ISSN
0167-4412
Publisher
Springer
DOI
http://dx.doi.org/10.1023/A:1005943805988
Type
Article
Appears in Collections:
Division of Biomaterials Research > Plant Systems Engineering Research > 1. Journal Articles
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