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Título: | Identification and Assessment of the Potential Allergenicity of 7S Vicilins in Olive (Olea europaea L.) Seeds |
Autor: | Jiménez-López, José Carlos CSIC ORCID; Zafra, Adoración CSIC ORCID; Palanco, Lucía; Florido, José Fernando; Alché Ramírez, Juan de Dios CSIC ORCID | Palabras clave: | Olivos Plantas de pólenes alergénicos Proteínas vegetales Vicilina Fiebre del heno Alérgenos |
Fecha de publicación: | 2016 | Editor: | Hindawi Publishing Corporation | Citación: | BioMed Research International Volume 2016 (2016), Article ID 4946872, 11 pages http://dx.doi.org/10.1155/2016/4946872 | Resumen: | Olive seeds, which are a raw material of interest, have been reported to contain 11S seed storage proteins (SSPs). However, the presence of SSPs such as 7S vicilins has not been studied. In this study, following a search in the olive seed transcriptome, 58 sequences corresponding to 7S vicilins were retrieved. A partial sequence was amplified by PCR from olive seed cDNA and subjected to phylogenetic analysis with other sequences. Structural analysis showed that olive 7S vicilin contains 9 -helixes and 22 -sheets. Additionally, 3D structural analysis displayed good superimposition with vicilin models generated from Pistacia and Sesamum. In order to assess potential allergenicity, T and B epitopes present in these proteins were identified by bioinformatic approaches. Different motifs were observed among the species, as well as some species-specific motifs. Finally, expression analysis of vicilins was carried out in protein extracts obtained from seeds of different species, including the olive. Noticeable bands were observed for all species in the 15–75 kDa MW interval, which were compatible with vicilins. The reactivity of the extracts to sera from patients allergic to nuts was also analysed. The findings with regard to the potential use of olive seed as food are discussed. [EN] | Versión del editor: | http://dx.doi.org/10.1155/2016/4946872 | URI: | http://hdl.handle.net/10261/132395 | DOI: | 10.1155/2016/4946872 | E-ISSN: | 2314-6141 |
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4946872.pdf | http://dx.doi.org/10.1155/2016/4946872 | 2,68 MB | Adobe PDF | Visualizar/Abrir |
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