Author： Rose A. Gindullis F. Meier I.
Publisher： Oxford University Press
ISSN： 1460-2431
Source： Journal of Experimental Botany, Vol.54, Iss.385, 2003-04, pp. : 1133-1141
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Abstract
A cDNA for a novel plant protein was isolated from tomato. Nuclear Matrix Protein 1 (NMP1) is a ubiquitously expressed 36 kDa protein, which has no homologues in animals and fungi, but is highly conserved among flowering and non-flowering plants, including gymnosperms, moss, and the liverwort Marchantia polymorpha. NMP1 is predominantly α-helical with multiple stretches of short amphipathic regions. Cell fractionation, immunofluorescence, and GFP localization experiments showed that NMP1 is located both in the cytoplasm and nucleus and that the nuclear fraction is associated with the nuclear matrix. NMP1 is a candidate for a plant-specific structural protein with a function both in the nucleus and cytoplasm.
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