The isolation of and methods of using a sub-genomic transcript (Sgt) promoter from Mirabilis mosaic virus (MMV) are described. A 333 bp MMV Sgt promoter fragment (sequence-;306 to +27 from the transcription start site, TSS) was found to be sufficient for strongest promoter activity. This MMV Sgt promoter fragment shows comparable promoter activity to the MMV FLt promoter both in transgenic plants and in protoplasts. The MMV Sgt promoter also demonstrates much greater activity compared to Cauliflower mosaic virus (CaMV) 19S promoter and 35S promoter. The MMV Sgt promoter fragment and any chimeric gene to which it may be linked are usefull for plant geneic engineering to obtain transgenic plants, plant cells and seeds.

 
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< Isolated human kinase proteins, nucleic acid molecules encoding human kinase proteins, and uses thereof

> Nucleotide sequences derived from the genome of retroviruses of the HIV-1, HIV-2 and SIV type, and their uses in particular for the amplification of the genomes of these retroviruses and for the in vitro diagnosis of the diseases due to these viruses

> Methods for plant transformation and regeneration of Papaver somniferum
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