The legumin gene family: a reconstructed Vicia faba legumin gene encoding a high-molecular-weight subunit is related to type B genes |
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Authors: | Ute Heim Helmut Bäumlein Ulrich Wobus |
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Affiliation: | (1) Institut für Pflanzengenetik und Kulturpflanzenforschung, Correnstrasse 3, D-06466 Gatersleben, Germany |
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Abstract: | Nucleotide sequence information from a partial genomic clone, a cDNA clone, a RACE clone and a PCR fragment was combined to reconstruct the first reported complete gene sequence encoding a large legumin subunit, designated LelB3. The length difference to the well-characterized major legumin subunits is caused by an extended glutamin/glutamic acid-rich region encoded by the C-terminal part of the chain. Amino acid sequence comparisons reveal that gene LelB3 is more closely related to B-type than to A-type legumin genes of Vicia faba. Gene LelB3 is a member of a small gene family as indicated by published (Pich and Schubert, Biol Zbl 112 (1993); 342–350) and limited own data. |
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Keywords: | gene family legumin (high-molecular-weight polypeptide) storage protein gene Vicia faba |
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