Plant and Cell Physiology, 1995, Vol. 36, No. 7 1393-1397
© 1995
Short Communication |
Tobacco Nuclear Genes for Photosystem I Subunits, psaD, psaE and psaH Share an Octamer Motif Bound with Nuclear Proteins
Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University Sapporo, 060 Japan
1To whom correspondence should be addressed.
In Nicotiana sylvestris, nuclear-encoded photosystem I (PSI) genes, psaD, psaE and psaH, share an octamer motif bound with three phosphoproteins. This motif is not found in the chloroplast genome. From the view point of endosymbiont hypothesis, these results suggest that a set of ancient PSI genes acquired a common cis-element in the nucleus after they were transferred from the ancestral organelle.
(Received March 20, 1995; Accepted August 9, 1995)
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