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Liao Y, Wang Z, Pei Y, Yan S, Chen T, Qi B, Li Y. Unveiling the applications of membrane proteins from oil bodies: leading the way in artificial oil body technology and other biotechnological advancements. Crit Rev Food Sci Nutr 2024:1-28. [PMID: 38594966 DOI: 10.1080/10408398.2024.2331566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Oil bodies (OBs) function as organelles that store lipids in plant seeds. An oil body (OB) is encased by a membrane composed of proteins (e.g., oleosins, caleosins, and steroleosins) and a phospholipid monolayer. The distinctive protein-phospholipid membrane architecture of OBs imparts exceptional stability even in extreme environments, thereby sparking increasing interest in their structure and properties. However, a comprehensive understanding of the structure-activity relationships determining the stability and properties of oil bodies requires a more profound exploration of the associated membrane proteins, an aspect that remains relatively unexplored. In this review, we aim to summarize and discuss the structural attributes, biological functions, and properties of OB membrane proteins. From a commercial perspective, an in-depth understanding of the structural and functional properties of OBs is important for the expansion of their applications by producing artificial oil bodies (AOB). Besides exploring their structural intricacies, we describe various methods that are used for purifying and isolating OB membrane proteins. These insights may provide a foundational framework for the practical utilization of OB membrane proteins in diverse applications within the realm of AOB technology, including biological and probiotic delivery, protein purification, enzyme immobilization, astringency detection, and antibody production.
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Affiliation(s)
- Yi Liao
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhenxiao Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Yukun Pei
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Shizhang Yan
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Tianyao Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
- Intelligent Equipment Research Center for the Development of Special Medicinal and Food Resources, Harbin Institute of Technology Chongqing Research Institute, Chongqing, China
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Yuan Y, Cao X, Zhang H, Liu C, Zhang Y, Song XL, Gai S. Genome-wide identification and analysis of Oleosin gene family in four cotton species and its involvement in oil accumulation and germination. BMC PLANT BIOLOGY 2021; 21:569. [PMID: 34863105 PMCID: PMC8642851 DOI: 10.1186/s12870-021-03358-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Cotton is not only a major textile fiber crop but also a vital oilseed, industrial, and forage crop. Oleosins are the structural proteins of oil bodies, influencing their size and the oil content in seeds. In addition, the degradation of oleosins is involved in the mobilization of lipid and oil bodies during seed germination. However, comprehensive identification and the systematic analysis of the Oleosin gene (OLEOs) family have not been conducted in cotton. RESULTS An in-depth analysis has enabled us to identify 25 and 24 OLEOs in tetraploid cotton species G. hirsutum and G. barbadense, respectively, while 12 and 13 OLEOs were identified in diploid species G. arboreum and G. raimondii, respectively. The 74 OLEOs were further clustered into three lineages according to the phylogenetic tree. Synteny analysis revealed that most of the OLEOs were conserved and that WGD or segmental duplications might drive their expansion. The transmembrane helices in GhOLEO proteins were predicted, and three transmembrane models were summarized, in which two were newly proposed. A total of 24 candidate miRNAs targeting GhOLEOs were predicted. Three highly expressed oil-related OLEOs, GH_A07G0501 (SL), GH_D10G0941 (SH), and GH_D01G1686 (U), were cloned, and their subcellular localization and function were analyzed. Their overexpression in Arabidopsis increased seed oil content and decreased seed germination rates. CONCLUSION We identified OLEO gene family in four cotton species and performed comparative analyses of their relationships, conserved structure, synteny, and gene duplication. The subcellular localization and function of three highly expressed oil-related OLEOs were detected. These results lay the foundation for further functional characterization of OLEOs and improving seed oil content.
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Affiliation(s)
- Yanchao Yuan
- College of Life Sciences, Qingdao Agricultural University, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao, China
| | - Xinzhe Cao
- College of Life Sciences, Qingdao Agricultural University, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao, China
| | - Haijun Zhang
- State Key Laboratory of Crop Biology/Agronomy College, Shandong Agricultural University, Taian, Shandong, China
| | - Chunying Liu
- College of Life Sciences, Qingdao Agricultural University, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao, China
| | - Yuxi Zhang
- College of Life Sciences, Qingdao Agricultural University, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao, China
| | - Xian-Liang Song
- State Key Laboratory of Crop Biology/Agronomy College, Shandong Agricultural University, Taian, Shandong, China.
| | - Shupeng Gai
- College of Life Sciences, Qingdao Agricultural University, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao, China.
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Chen K, Yin Y, Liu S, Guo Z, Zhang K, Liang Y, Zhang L, Zhao W, Chao H, Li M. Genome-wide identification and functional analysis of oleosin genes in Brassica napus L. BMC PLANT BIOLOGY 2019; 19:294. [PMID: 31272381 PMCID: PMC6610931 DOI: 10.1186/s12870-019-1891-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/18/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Rapeseed is the third largest oil seed crop in the world. The seeds of this plant store lipids in oil bodies, and oleosin is the most important structural protein in oil bodies. However, the function of oleosin in oil crops has received little attention. RESULTS In the present study, 48 oleosin sequences from the Brassica napus genome were identified and divided into four lineages (T, U, SH, SL). Synteny analysis revealed that most of the oleosin genes were conserved, and all of these genes experienced purifying selection during evolution. Three and four important oleosin genes from Arabidopsis and B. napus, respectively, were cloned and analyzed for function in Arabidopsis. Overexpression of these oleosin genes in Arabidopsis increased the seed oil content slightly, except for BnaOLE3. Further analysis revealed that the average oil body size of the transgenic seeds was slightly larger than that of the wild type (WT), except for BnaOLE1. The fatty acid profiles showed that the linoleic acid content (13.3% at most) increased and the peanut acid content (11% at most) decreased in the transgenic lines. In addition, the seed size and thousand-seed weight (TSW) also increased in the transgenic lines, which could lead to increased total lipid production. CONCLUSION We identified oleosin genes in the B. napus genome, and overexpression of oleosin in Arabidopsis seeds increased the seed weight and linoleic acid content (13.3% at most).
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Affiliation(s)
- Kang Chen
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Yongtai Yin
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Si Liu
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Zhenyi Guo
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Kai Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Yu Liang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Lina Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Weiguo Zhao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Hongbo Chao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Maoteng Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
- Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang Normal University, Huanggang, China
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Identification of an oleosin-like gene in seagrass seeds. Biotechnol Lett 2017; 39:1757-1763. [DOI: 10.1007/s10529-017-2414-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 08/18/2017] [Indexed: 11/25/2022]
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Korte R, Bräcker J, Brockmeyer J. Gastrointestinal digestion of hazelnut allergens on molecular level: Elucidation of degradation kinetics and resistant immunoactive peptides using mass spectrometry. Mol Nutr Food Res 2017; 61. [PMID: 28677900 DOI: 10.1002/mnfr.201700130] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 05/06/2017] [Accepted: 06/01/2017] [Indexed: 12/28/2022]
Abstract
SCOPE Allergy to hazelnut seeds ranks among the most prevalent food allergies in Europe. The aim of this study was to elucidate the gastrointestinal digestion of hazelnut allergens on molecular level. METHODS AND RESULTS Hazelnut flour was digested in vitro following the Infogest consensus model. For six allergenic proteins, the time-dependent course of digestion was monitored by SDS-PAGE and HPLC-MS/MS, and degradation products were characterized by a bottom-up proteomics approach. Depending on the molecular structure, a specific biochemical fate was observed for each allergen, and degradation kinetics were traced back to the peptide level. 1183 peptides were characterized, including 130 peptides that carry known IgE-binding epitopes and may represent sensitizers for hazelnut allergy. The kinetics of peptide formation and degradation were determined by label-free quantification and follow a complex multi-stage mechanism. CONCLUSION We present a comprehensive survey on the gastrointestinal digestion of a relevant allergenic food on level of the peptidome, including the first systematic characterization and quantification of degradation products. This provides information on the differential resistance of plant food allergens and their structural elements undergoing digestion and forms the basis for a deeper understanding of the molecular principles responsible for sensitization to food allergy.
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Affiliation(s)
- Robin Korte
- Institute of Food Chemistry, University of Münster, Münster, Germany
| | - Julia Bräcker
- Analytical Food Chemistry, University of Stuttgart, Stuttgart, Germany
| | - Jens Brockmeyer
- Analytical Food Chemistry, University of Stuttgart, Stuttgart, Germany
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Jappe U, Schwager C. Relevance of Lipophilic Allergens in Food Allergy Diagnosis. Curr Allergy Asthma Rep 2017; 17:61. [PMID: 28795292 DOI: 10.1007/s11882-017-0731-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review is to provide available data on a new class of allergens, the oleosins, and their diagnostic value. There is evidence that allergen extracts used for in vivo as well as in vitro diagnostic tests do not contain oleosins because these proteins are lipophilic and nearly insoluble in saline or aqueous solutions. So far, only oleosins of peanut, sesame and hazelnut have been registered as allergens. Reports on IgE-binding tests performed with oleosins of different species with sera from allergic patients show that IgE specific for oleosins are associated with severe allergic reactions which is why they should be part of the diagnostic tests in the future. RECENT FINDINGS Recent findings showed that oleosins purified from in shell-roasted peanuts revealed a higher IgE-binding capacity when compared to raw ones. Naturally purified as well as recombinantly produced peanut oleosins can be used in basophil activation test. The synopsis of all reports on different thermal processing of several oleosin sources and the respective data obtained with patients sera investigated via immunoblot and basophil activation test points to the recommendation that-if naturally purified oleosins are used, they should mostly be obtained from roasted food allergen sources. For immunoblot and basophil activation test, both, naturally purified oleosins as well as recombinant modified oleosins are valuable diagnostic tools.
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Affiliation(s)
- Uta Jappe
- Division of Clinical and Molecular Allergology, Priority Research Area Asthma & Allergy, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Research Center Borstel, Parkallee 35, 23845, Borstel, Germany. .,Interdisciplinary Allergy Outpatient Clinic, Department of Pneumology, University of Lübeck, Lübeck, Germany.
| | - Christian Schwager
- Division of Clinical and Molecular Allergology, Priority Research Area Asthma & Allergy, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Research Center Borstel, Parkallee 35, 23845, Borstel, Germany
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Magishi N, Yuikawa N, Kobayashi M, Taniuchi S. Degradation and removal of soybean allergen in Japanese soy sauce. Mol Med Rep 2017; 16:2264-2268. [PMID: 28656270 DOI: 10.3892/mmr.2017.6815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 02/27/2017] [Indexed: 11/05/2022] Open
Abstract
Soy sauce is a traditional fermented seasoning of Japan and is available throughout the world. The two main raw ingredients of soy sauce are soybean and wheat, both of which are established food allergens. The present study examined the degradation and removal of soybean allergens in soy sauce by immunoblotting with anti‑soybean protein antibody from rabbit and sera from two children with soybean allergy. It was demonstrated that soybean allergens were gradually degraded during the fermentation process, but were not completely degraded in raw soy sauce. During the processes of heat‑treatment and filtration, the soluble soybean allergens in raw soy sauce were denatured to insoluble allergens by heat‑treatment and subsequently completely removed from soy sauce by filtration. Therefore, to reduce the allergenicity of soy sauce, heat‑treatment and filtration are very important processes in addition to the enzymatic degradation during the fermentation of soy sauce.
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Affiliation(s)
- Norihiro Magishi
- Research Laboratory, Higashimaru Shoyu Co., Ltd., Tatsuno, Hyogo 679‑4167, Japan
| | - Naoya Yuikawa
- Research Laboratory, Higashimaru Shoyu Co., Ltd., Tatsuno, Hyogo 679‑4167, Japan
| | - Makio Kobayashi
- Research Laboratory, Higashimaru Shoyu Co., Ltd., Tatsuno, Hyogo 679‑4167, Japan
| | - Shoichiro Taniuchi
- Department of Pediatrics, Takatsuki General Hospital, Takatsuki, Osaka 569-1192, Japan
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8
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Abstract
Oleosins form a steric barrier surface on lipid droplets in cytoplasm, preventing them from contacting and coalescing with adjacent droplets. Oleosin genes have been detected in numerous plant species. However, the presence of oleosin genes in the most basally diverging lineage of land plants, liverworts, has not been reported previously. Thus we explored whether liverworts have an oleosin gene. In Marchantia polymorpha L., a thalloid liverwort, one predicted sequence was found that could encode oleosin, possessing the hallmark of oleosin, a proline knot (-PX5SPX3P-) motif. The phylogeny of the oleosin gene family in land plants was reconstructed based on both nucleotide and amino acid sequences of oleosins, from 31 representative species covering almost all the main lineages of land plants. Based on our phylogenetic trees, oleosin genes were classified into three groups: M-oleosins (defined here as a novel group distinct from the two previously known groups), low molecular weight isoform (L-oleosin), and high molecular weight isoform (H-oleosin), according to their amino-acid organization, phylogenetic relationships, expression tissues, and immunological characteristics. In liverworts, mosses, lycophytes, and gymnosperms, only M-oleosins have been described. In angiosperms, however, while this isoform remains and is highly expressed in the gametophyte pollen tube, two other isoforms also occur, L-oleosins and H-oleosins. Phylogenetic analyses suggest that the M-oleosin isoform is the precursor to the ancestor of L-oleosins and H-oleosins. The later two isoforms evolved by successive gene duplications in ancestral angiosperms. At the genomic level, most oleosins possess no introns. If introns are present, in both the L-isoform and the M-isoform a single intron inserts behind the central region, while in the H-isoform, a single intron is located at the 5'-terminus. This study fills a major gap in understanding functional gene evolution of oleosin in land plants, shedding new light on evolutionary transitions of lipid storage strategies.
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Affiliation(s)
- Yuan Fang
- School of Life Science, East China Normal University, Shanghai, China
- University and Jepson Herbaria, and Department of Integrative Biology, University of California, Berkeley, California, United State of America
| | - Rui-Liang Zhu
- School of Life Science, East China Normal University, Shanghai, China
| | - Brent D. Mishler
- University and Jepson Herbaria, and Department of Integrative Biology, University of California, Berkeley, California, United State of America
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Jolivet P, Acevedo F, Boulard C, d'Andréa S, Faure JD, Kohli A, Nesi N, Valot B, Chardot T. Crop seed oil bodies: from challenges in protein identification to an emerging picture of the oil body proteome. Proteomics 2013; 13:1836-49. [PMID: 23589365 DOI: 10.1002/pmic.201200431] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 02/08/2013] [Accepted: 02/11/2013] [Indexed: 01/27/2023]
Abstract
Oleaginous seeds store lipids in specialized structures called oil bodies (OBs). These organelles consist of a core of neutral lipids bound by proteins embedded in a phospholipid monolayer. OB proteins are well conserved in plants and have long been grouped into only two categories: structural proteins or enzymes. Recent work, however, which identified other classes of proteins associated with OBs, clearly shows that this classification is obsolete. Proteomics-mediated OB protein identification is facilitated in plants for which the genome is sequenced and annotated. However, it is not clear whether this knowledge can be dependably transposed to less well-characterized plants, including the well-established commercial sources of seed oil as well as the many others being proposed as novel sources for biodiesel, especially in Africa and Asia. Toward an update of the current data available on OB proteins this review discusses (i) the specific difficulties for proteomic studies of organelles; (ii) a 2012 census of the proteins found in seed OBs from various crops; (iii) the oleosin composition of OBs and their role in organelle stability; (iv) PTM of OB proteins as an emerging field of investigation; and finally we describe the emerging model of the OB proteome from oilseed crops.
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Affiliation(s)
- Pascale Jolivet
- INRA, UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, Versailles, France
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Zhang H, Miao H, Wang L, Qu L, Liu H, Wang Q, Yue M. Genome sequencing of the important oilseed crop Sesamum indicum L. Genome Biol 2013; 14:401. [PMID: 23369264 PMCID: PMC3663098 DOI: 10.1186/gb-2013-14-1-401] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The Sesame Genome Working Group (SGWG) has been formed to sequence and assemble the sesame (Sesamum indicum L.) genome. The status of this project and our planned analyses are described.
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Affiliation(s)
- Haiyang Zhang
- Henan Sesame Research Center, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Hongmei Miao
- Henan Sesame Research Center, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Lei Wang
- TEDA School of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, People's Republic of China
| | - Lingbo Qu
- Department of Bioengineering, Henan Technology University, Zhengzhou 450001, People's Republic of China
| | - Hongyan Liu
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Qiang Wang
- Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, People's Republic of China
| | - Meiwang Yue
- Crops Research Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, People's Republic of China
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Abstract
Hydrophobic storage neutral lipids are stably preserved in specialized organelles termed oil bodies in the aqueous cytosolic compartment of plant cells via encapsulation with surfactant molecules including phospholipids and integral proteins. To date, three classes of integral proteins, termed oleosin, caleosin, and steroleosin, have been identified in oil bodies of angiosperm seeds. Proposed structures, targeting traffic routes, and biological functions of these three integral oil-body proteins were summarized and discussed. In the viewpoint of evolution, isoforms of oleosin and caleosin are found in oil bodies of pollens as well as those of more primitive species; moreover, caleosin- and steroleosin-like proteins are also present in other subcellular locations besides oil bodies. Technically, artificial oil bodies of structural stability similar to native ones were successfully constituted and seemed to serve as a useful tool for both basic research studies and biotechnological applications.
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Affiliation(s)
- Jason T. C. Tzen
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
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12
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Nikiforidis CV, Biliaderis CG, Kiosseoglou V. Rheological characteristics and physicochemical stability of dressing-type emulsions made of oil bodies–egg yolk blends. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.02.058] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Achouri A, Nail V, Boye JI. Sesame protein isolate: Fractionation, secondary structure and functional properties. Food Res Int 2012. [DOI: 10.1016/j.foodres.2012.01.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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14
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Li W, Li L, Sun X, Tang K. An oleosin-fusion protein driven by the CaMV35S promoter is accumulated in Arabidopsis (Brassicaceae) seeds and correctly targeted to oil bodies. GENETICS AND MOLECULAR RESEARCH 2012; 11:2138-46. [DOI: 10.4238/2012.august.13.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Johnson W, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG, Shank RC, Slaga TJ, Snyder PW, Andersen FA. Amended Safety Assessment of Sesamum Indicum (Sesame) Seed Oil, Hydrogenated Sesame Seed Oil, Sesamum Indicum (Sesame) Oil Unsaponifiables, and Sodium Sesameseedate. Int J Toxicol 2011; 30:40S-53S. [DOI: 10.1177/1091581811406987] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sesamum indicum (sesame) seed oil and related cosmetic ingredients are derived from Sesamum indicum. Sesamum indicum (sesame) seed oil, sesamum indicum (sesame) oil unsaponifiables, and hydrogenated sesame seed oil function as conditioning agents. Sodium sesameseedate functions as a cleansing agent, emulsifying agent, and a nonaqueous viscosity increasing agent. These ingredients are neither skin irritants, sensitizers, teratogens, nor carcinogens at exposures that would result from cosmetic use. Both animal and human data relevant to the cosmetic use of these ingredients were reviewed. The CIR Expert Panel concluded that these ingredients are safe in the present practices of use and concentration as described in this safety assessment.
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16
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Nikiforidis CV, Kiosseoglou V. Competitive displacement of oil body surface proteins by Tween 80 – Effect on physical stability. Food Hydrocoll 2011. [DOI: 10.1016/j.foodhyd.2010.10.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Jiang PL, Wang CS, Hsu CM, Jauh GY, Tzen JTC. Stable Oil Bodies Sheltered by a Unique Oleosin in Lily Pollen. ACTA ACUST UNITED AC 2007; 48:812-21. [PMID: 17468126 DOI: 10.1093/pcp/pcm051] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Stable oil bodies were purified from mature lily (Lilium longiflorum Thunb.) pollen. The integrity of pollen oil bodies was maintained via electronegative repulsion and steric hindrance possibly provided by their surface proteins. Immunodetection revealed that a major protein of 18 kDa was exclusively present in pollen oil bodies and massively accumulated in late stages of pollen maturation. According to mass spectrometric analyses, this oil body protein possessed a tryptic fragment of 13 residues matching that of a theoretical rice oleosin. A complete cDNA fragment encoding this putative oleosin was obtained by PCR cloning with primers derived from its known 13-residue sequence. Sequence analysis as well as immunological non-cross-reactivity suggests that this pollen oleosin represents a distinct class in comparison with oleosins found in seed oil bodies and tapetum. In pollen cells observed by electron microscopy, oil bodies were presumably surrounded by tubular membrane structures, and encapsulated in the vacuoles after germination. It seems that pollen oil bodies are mobilized via a different route from that of glyoxysomal mobilization of seed oil bodies after germination.
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Affiliation(s)
- Pei-Luen Jiang
- Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, Taiwan
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18
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Simkin AJ, Qian T, Caillet V, Michoux F, Ben Amor M, Lin C, Tanksley S, McCarthy J. Oleosin gene family of Coffea canephora: quantitative expression analysis of five oleosin genes in developing and germinating coffee grain. JOURNAL OF PLANT PHYSIOLOGY 2006; 163:691-708. [PMID: 16442665 DOI: 10.1016/j.jplph.2005.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2005] [Accepted: 11/02/2005] [Indexed: 05/06/2023]
Abstract
Coffee grains have an oil content between 10% and 16%, with these values associated with Coffea canephora (robusta) and C. arabica (arabica), respectively. As the majority of the oil stored in oil seeds is contained in specific structures called oil bodies, we were interested in determining whether there are any differences in the expression of the main oil body proteins, the oleosins, between the robusta and arabica varieties. Here, we present the isolation, characterization and quantitative expression analysis of six cDNAs representing five genes of the coffee oleosin family (CcOLE-1 to CcOLE-5) and one gene of the steroleosin family (CcSTO-1). Each coffee oleosin cDNA encodes for the signature structure for oleosins, a long hydrophobic central sequence containing a proline KNOT motif. Sequence analysis also indicates that the C-terminal domain of CcOLE-1, CcOLE-3 and CcOLE-5 contain an 18-residue sequence typical of H-form oleosins. Quantitative RT-PCR showed that the transcripts of all five oleosins were predominantly expressed during grain maturation in robusta and arabica grain, with CcOLE-1 and CcOLE-2 being more highly expressed. While the relative expression levels of the five oleosins were similar for robusta and arabica, significant differences in the absolute levels of expression were found between the two species. Quantitative analysis of oleosin transcripts in germinating arabica grain generally showed that the levels of these transcripts were lower in the grain after drying, and then further decreased during germination, except for a small spike of expression for CcOLE-2 early in germination. In contrast, the levels of CcSTO-1 transcripts remained relatively constant during germination, in agreement with suggestions that this protein is actively involved in the process of oil body turnover. Finally, we discuss the implications of the coffee oleosin expression data presented relative to the predicted roles for the different coffee oleosins during development and germination.
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Affiliation(s)
- Andrew J Simkin
- Centre de Recherche Nestlé, 101 Av. Gustave Eiffel, Notre Dame d'Oé, BP 49716-37097 Tours, France
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Leduc V, Moneret-Vautrin DA, Tzen JTC, Morisset M, Guerin L, Kanny G. Identification of oleosins as major allergens in sesame seed allergic patients. Allergy 2006; 61:349-56. [PMID: 16436145 DOI: 10.1111/j.1398-9995.2006.01013.x] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The prevalence of sesame allergy is increasing in European countries. Cases of severe allergy lack any evidence of specific immunoglobulin (Ig)Es by prick tests and CAPSystem-FEIA. The reasons for this negativity are unknown. METHODS In 32 patients displaying immediate symptoms such as anaphylactic shock, asthma, urticaria, angioedema, sesame allergy was diagnosed by double-blind placebo-controlled food challenge (DBPCFC) or convincing clinical history. However, 10 patients had negative prick tests and CapSystem-FEIA. The specificity of IgEs was further investigated by enzyme-linked immunosorbent assay (ELISA), isoelectrofocalisation (IEF)-blotting, and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) blotting using total sesame extracts and purified fraction of oil bodies. Monospecific rabbit antibodies directed to two oleosin isoforms (15 and 17 kDa) were used. RESULTS By ELISA, white sesame seed extract allowed the detection of higher levels of IgE than brown sesame extract. In all sera, numerous bands binding IgEs were detected by IEF or SDS-PAGE. In reducing conditions, two bands (15-17 kDa), could be separated from 2S albumin. Oleosins, present in oil bodies fractions, were recognized by IgEs from all sera. CONCLUSION Oleosins are major allergens of sesame seeds and may be relevant to severe anaphylaxis. Falsely negative prick tests could be due to the lack of oleosins in presently available extracts, or to the fact that epitopes might be buried in the inner molecule. Detection tests currently used to identify sesame allergens based on sesame vicillins or other storage proteins could be insufficient for the detection of sesame seed contamination. Oleosins have been named Ses i 4 (17 kDa) and Ses i 5 (15 kDa), in accordance with the IUIS Nomenclature Committee.
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Affiliation(s)
- V Leduc
- Allerbio Laboratory (R and D), Varennes en Argonne, France
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Pons L, Chéry C, Mrabet N, Schohn H, Lapicque F, Guéant JL. Purification and cloning of two high molecular mass isoforms of peanut seed oleosin encoded by cDNAs of equal sizes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2005; 43:659-68. [PMID: 16095908 DOI: 10.1016/j.plaphy.2005.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Oleosins are small plant proteins characterized by a long hydrophobic core flanked by amphipathic N- and C-terminal domains, which act as emulsifiers for the storage of lipids in seeds. They have been sequenced in a number of oilseeds important for the food industry but not in peanuts. We purified the major isoform of peanut oleosin by preparative electrophoresis with continuous elution, in sufficient amounts to raise specific antibodies, perform circular dichroism and N-sequence tryptic fragments. The structure of the purified oleosin was dominated by alpha-helix that may be assigned to the SDS-resistant central hydrophobic stretch. A two-step RT-PCR strategy was developed to determine the cDNA sequence of this oleosin. Two cDNA variants of equal sizes encoding for isoforms of 176 amino acids each were identified. The isoforms differed by seven amino acids mainly located in the N- and C-terminal domains. The corresponding mRNAs were estimated at 0.9 kb by Northern blot and were transcribed from genes without introns. Immunoprecipitation of the in vitro-translated peanut oleosin labeled with [14C]leucine or [35S]methionine produced the full-length protein (17 kDa) and a 6-kDa peptide corresponding to the N/C-terminal domains. This peptide was able to form SDS-PAGE stable oligomers by interacting with the full-length protein. A similar peptide was released after [125I]iodination of the purified oleosin that generated intermediate-sized oligomers also visible by Western blot on a crude oleosin extract. Oligomers reflect the natural ability of oleosins to strongly interact with each other via not only their central domains but also their N- and C-terminal domains.
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Affiliation(s)
- Laurent Pons
- Laboratoire de Pathologie Cellulaire et Moléculaire en Nutrition, Inserm EMI 0014, Faculté de Médecine, Université Henri Poincaré Nancy 1, BP 184, 54505 Vandaeuvre-lès-Nancy cedex, France
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21
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Wältermann M, Steinbüchel A. Neutral lipid bodies in prokaryotes: recent insights into structure, formation, and relationship to eukaryotic lipid depots. J Bacteriol 2005; 187:3607-19. [PMID: 15901682 PMCID: PMC1112053 DOI: 10.1128/jb.187.11.3607-3619.2005] [Citation(s) in RCA: 212] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Marc Wältermann
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, Münster, Germany
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22
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Lin LJ, Tzen JTC. Two distinct steroleosins are present in seed oil bodies. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2004; 42:601-8. [PMID: 15331088 DOI: 10.1016/j.plaphy.2004.06.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2004] [Accepted: 06/16/2004] [Indexed: 05/05/2023]
Abstract
In addition to oleosin isoforms, three minor proteins, Sop1, 2 and 3 are present in sesame oil bodies. Genes encoding Sop1 and Sop2, named caleosin and steroleosin for their calcium and sterol-binding capacity, respectively, have been cloned recently. Blast sequence analysis of the first 32 N-terminal residues revealed that Sop3 was presumably a steroleosin-like protein homologous to Sop2. A putative cDNA clone of Sop3 was obtained by PCR, and subsequently confirmed by immunological recognition with antibodies against its over-expressed protein in Escherichia coli. Although Sop2 and Sop3, tentatively named steroleosin-A and -B, were found homologous, they could not be cross-recognized immunologically. Sequence comparison showed that these two steroleosins possessed a conserved NADP+ binding subdomain but a diverse sterol-binding subdomain of different size. Both steroleosins were progressively accumulated in maturing seeds but with different cumulating patterns. Dehydrogenase activity detected in their expressed proteins indicated that steroleosin-B might comparably possess a broader sterol selectivity and higher NADP+ specificity than steroleosin-A. Immunological cross-recognition implies that steroleosin-B is present in seed oil bodies of diverse species. A structural model of an oil-body was drawn with all its known essential constituents, and secondary structure organizations of the three classes of oil-body proteins were compared.
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Affiliation(s)
- Li-Jen Lin
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan, ROC
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23
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Lin LJ, Tai SSK, Peng CC, Tzen JTC. Steroleosin, a sterol-binding dehydrogenase in seed oil bodies. PLANT PHYSIOLOGY 2002; 128:1200-1211. [PMID: 11950969 PMCID: PMC154248 DOI: 10.1104/pp.010982] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2001] [Revised: 11/27/2001] [Accepted: 12/18/2001] [Indexed: 05/20/2023]
Abstract
Besides abundant oleosin, three minor proteins, Sop 1, 2, and 3, are present in sesame (Sesamum indicum) oil bodies. The gene encoding Sop1, named caleosin for its calcium-binding capacity, has recently been cloned. In this study, Sop2 gene was obtained by immunoscreening, and it was subsequently confirmed by amino acid partial sequencing and immunological recognition of its overexpressed protein in Escherichia coli. Immunological cross recognition implies that Sop2 exists in seed oil bodies of diverse species. Along with oleosin and caleosin genes, Sop2 gene was transcribed in maturing seeds where oil bodies are actively assembled. Sequence analysis reveals that Sop2, tentatively named steroleosin, possesses a hydrophobic anchoring segment preceding a soluble domain homologous to sterol-binding dehydrogenases/reductases involved in signal transduction in diverse organisms. Three-dimensional structure of the soluble domain was predicted via homology modeling. The structure forms a seven-stranded parallel beta-sheet with the active site, S-(12X)-Y-(3X)-K, between an NADPH and a sterol-binding subdomain. Sterol-coupling dehydrogenase activity was demonstrated in the overexpressed soluble domain of steroleosin as well as in purified oil bodies. Southern hybridization suggests that one steroleosin gene and certain homologous genes may be present in the sesame genome. Comparably, eight hypothetical steroleosin-like proteins are present in the Arabidopsis genome with a conserved NADPH-binding subdomain, but a divergent sterol-binding subdomain. It is indicated that steroleosin-like proteins may represent a class of dehydrogenases/reductases that are involved in plant signal transduction regulated by various sterols.
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Affiliation(s)
- Li-Jen Lin
- Graduate Institute of Agricultural Biotechnology, National Chung-Hsing University, Taichung, Taiwan 40227, Republic of China
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Chen JC, Tzen JT. An in vitro system to examine the effective phospholipids and structural domain for protein targeting to seed oil bodies. PLANT & CELL PHYSIOLOGY 2001; 42:1245-52. [PMID: 11726710 DOI: 10.1093/pcp/pce160] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
An in vitro system was established to examine the targeting of proteins to maturing seed oil bodies. Oleosin, the most abundant structural protein, and caleosin, a newly identified minor constituent in seed oil bodies, were translated in a reticulocyte lysate system and simultaneously incubated with artificial oil emulsions composed of triacylglycerol and phospholipid. The results suggest that oil body proteins could spontaneously target to artificial oil emulsions in a co-translational mode. Incorporation of oleosin to artificial oil emulsions extensively protected a fragment of approximately 8 kDa from proteinase K digestion. In a competition experiment, in vitro translated caleosin and oleosin preferentially target to artificial oil emulsions instead of microsomal membranes. In oil emulsions with neutral phospholipids, relatively low protein targeting efficiency was observed. The targeting efficiency was substantially elevated when negatively charged phospholipids were supplemented to oil emulsions to mimic the native phospholipid composition of oil bodies. Mutated caleosin lacking various structural domains or subdomains was examined for its in vitro targeting efficiency. The results indicate that the subdomain comprising the proline knot motif is crucial for caleosin targeting to oil bodies. A model of direct targeting of oil-body proteins to maturing oil bodies is proposed.
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Affiliation(s)
- J C Chen
- Graduate Institute of Agricultural Biotechnology, National Chung-Hsing University, Taichung, Taiwan
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25
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Zweytick D, Athenstaedt K, Daum G. Intracellular lipid particles of eukaryotic cells. BIOCHIMICA ET BIOPHYSICA ACTA 2000; 1469:101-20. [PMID: 10998572 DOI: 10.1016/s0005-2736(00)00294-7] [Citation(s) in RCA: 260] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this review article we describe characterization of intracellular lipid particles of three different eukaryotic species, namely mammalian cells, plants and yeast. Lipid particles of all types of cells share a general structure. A hydrophobic core of neutral lipids is surrounded by a membrane monolayer of phospholipids which contains a minor amount of proteins. Whereas lipid particles from mammalian cells and plants harbor specific classes of polypeptides, mainly perilipins and oleosins, respectively, yeast lipid particles contain a more complex set of enzymes which are involved in lipid biosynthesis. Function of lipid particles as storage compartment and metabolic organelle, and their interaction with other subcellular fractions are discussed. Furthermore, models for the biogenesis of lipid particles are presented and compared among the different species.
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Affiliation(s)
- D Zweytick
- Institut für Biochemie und Lebensmittelchemie, Technische Universität, Petersgasse 12/II, A-8010, Graz, Austria
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