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Protein & Peptide Letters


ISSN (Print): 0929-8665
ISSN (Online): 1875-5305

An Opaque-2-Like Transcription Factor from Pearl Millet

Author(s): Lucilia Helena Marcellino, Goran Neshich, Antonio Furtado Neto and Eugen Silvano Gander

Volume 11, Issue 4, 2004

Page: [345 - 352] Pages: 8

DOI: 10.2174/0929866043407002

Price: $65


Pearl millet (Pennisetum glaucum L.), a species of the Poaceae family, is an important food crop in Africa, Asia and South America. Its nutritional value is due to storage prolamins accumulated in the seeds. In other species of the same family, the expression of the genes coding for storage prolamins is mediated by the regulatory protein opaque-2. In this paper we show that an opaque-2 -like protein is present in pearl millet too and is expressed during the early stages of seed development. The organization of the gene coding for this protein is similar to that of orthologous genes in other Poaceae species, i.e. six exons separated by five introns. A comparison of amino acid homologies with other described opaque-2 proteins is presented.

Keywords: transcription factors, opaque-2

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