SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil

Fatty Acid Desaturase 2 (FAD2), a key enzyme in the fatty acid biosynthesis pathway, is involved in the desaturation and conversion of oleic acid to linoleic acid. Therefore, it plays a crucial role in oleic/linoleic acid ratio and the quality of olive oil. DNA sequencing of 19 FAD2 genes from a set...

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Main Authors: Rayda Ben Ayed, Fabienne Moreau, Hajer Ben Hlima, Ahmed Rebai, Sezai Ercisli, Narendra Kadoo, Mohsen Hanana, Amine Assouguem, Riaz Ullah, Essam A. Ali
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Computational and Structural Biotechnology Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S200103702200068X
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author Rayda Ben Ayed
Fabienne Moreau
Hajer Ben Hlima
Ahmed Rebai
Sezai Ercisli
Narendra Kadoo
Mohsen Hanana
Amine Assouguem
Riaz Ullah
Essam A. Ali
author_facet Rayda Ben Ayed
Fabienne Moreau
Hajer Ben Hlima
Ahmed Rebai
Sezai Ercisli
Narendra Kadoo
Mohsen Hanana
Amine Assouguem
Riaz Ullah
Essam A. Ali
author_sort Rayda Ben Ayed
collection DOAJ
description Fatty Acid Desaturase 2 (FAD2), a key enzyme in the fatty acid biosynthesis pathway, is involved in the desaturation and conversion of oleic acid to linoleic acid. Therefore, it plays a crucial role in oleic/linoleic acid ratio and the quality of olive oil. DNA sequencing of 19 FAD2 genes from a set of olive oil varieties revealed several single-nucleotide polymorphisms (SNPs) and highlighted associations between some of the SNPs and saturated fatty acids contents. This was further confirmed by SNP-interaction and machine learning approach. Haplotype diversity analysis led to the discovery of three highly polymorphic SNPs and four haplotypes harboring differential oleic/linoleic acid ratios. Moreover, a combination of molecular modeling and docking experiments allowed a deeper and better understanding of the structure–function relationship of the FAD2 enzyme. Sequence patterns and variations involved in the regulation of the FAD2 activity were also identified. Furthermore, S82C and H213N substitutions in OeFAD2 make the Oueslati variety more interesting in terms of fatty acid profile and oleic acid level.
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spelling doaj.art-db7002e332524fafb25a75ccb753364c2022-12-24T04:51:37ZengElsevierComputational and Structural Biotechnology Journal2001-03702022-01-012012291243SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oilRayda Ben Ayed0Fabienne Moreau1Hajer Ben Hlima2Ahmed Rebai3Sezai Ercisli4Narendra Kadoo5Mohsen Hanana6Amine Assouguem7Riaz Ullah8Essam A. Ali9Laboratory of Molecular and Cellular Screening Processes, Genomics and Bioinformatics Group, Centre of Biotechnology of Sfax, PB 1177, 3018 Sfax, Tunisia; Corresponding author.Institut National de la Recherche Agronomique (INRA), 2 Place Pierre Viala, 34000 Montpellier, FranceLaboratoire de Génie Enzymatique et de Microbiologie, Equipe de Biotechnologie des Algues, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, 3038 Sfax, TunisiaLaboratory of Molecular and Cellular Screening Processes, Genomics and Bioinformatics Group, Centre of Biotechnology of Sfax, PB 1177, 3018 Sfax, TunisiaAtaturk University, Faculty of Agriculture, Department of Horticulture, 25240 Erzurum, TurkeyCSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, IndiaLaboratory of Extrêmophile Plants, Biotechnology Center of Borj-Cédria, B.P. 901, 2050 Hammam Lif, TunisiaLaboratory of Functional Ecology and Environment, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Imouzzer Street, Fez P.O. Box 2202, MoroccoDepartment of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi ArabiaFatty Acid Desaturase 2 (FAD2), a key enzyme in the fatty acid biosynthesis pathway, is involved in the desaturation and conversion of oleic acid to linoleic acid. Therefore, it plays a crucial role in oleic/linoleic acid ratio and the quality of olive oil. DNA sequencing of 19 FAD2 genes from a set of olive oil varieties revealed several single-nucleotide polymorphisms (SNPs) and highlighted associations between some of the SNPs and saturated fatty acids contents. This was further confirmed by SNP-interaction and machine learning approach. Haplotype diversity analysis led to the discovery of three highly polymorphic SNPs and four haplotypes harboring differential oleic/linoleic acid ratios. Moreover, a combination of molecular modeling and docking experiments allowed a deeper and better understanding of the structure–function relationship of the FAD2 enzyme. Sequence patterns and variations involved in the regulation of the FAD2 activity were also identified. Furthermore, S82C and H213N substitutions in OeFAD2 make the Oueslati variety more interesting in terms of fatty acid profile and oleic acid level.http://www.sciencedirect.com/science/article/pii/S200103702200068XFatty acid desaturaseMachine learningHaplotypeProtein structureDockingOleic/linoleic acid ratio
spellingShingle Rayda Ben Ayed
Fabienne Moreau
Hajer Ben Hlima
Ahmed Rebai
Sezai Ercisli
Narendra Kadoo
Mohsen Hanana
Amine Assouguem
Riaz Ullah
Essam A. Ali
SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
Computational and Structural Biotechnology Journal
Fatty acid desaturase
Machine learning
Haplotype
Protein structure
Docking
Oleic/linoleic acid ratio
title SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
title_full SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
title_fullStr SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
title_full_unstemmed SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
title_short SNP discovery and structural insights into OeFAD2 unravelling high oleic/linoleic ratio in olive oil
title_sort snp discovery and structural insights into oefad2 unravelling high oleic linoleic ratio in olive oil
topic Fatty acid desaturase
Machine learning
Haplotype
Protein structure
Docking
Oleic/linoleic acid ratio
url http://www.sciencedirect.com/science/article/pii/S200103702200068X
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