1
|
Noma S, Yamagishi M, Ogihara Y, Kawaura K. Characterization of α-gliadin alleles of Japanese wheat cultivars in relation to flour dough extensibility and celiac disease epitopes. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2022.103591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
2
|
Bacala R, Hatcher DW, Perreault H, Fu BX. Challenges and opportunities for proteomics and the improvement of bread wheat quality. JOURNAL OF PLANT PHYSIOLOGY 2022; 275:153743. [PMID: 35749977 DOI: 10.1016/j.jplph.2022.153743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/13/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Wheat remains a critical global food source, pressured by climate change and the need to maximize yield, improve processing and nutritional quality and ensure safety. An enormous amount of research has been conducted to understand gluten protein composition and structure in relation to end-use quality, yet progress has become stagnant. This is mainly due to the need and inability to biochemically characterize the intact functional glutenin polymer in order to correlate to quality, necessitating reduction to monomeric subunits and a loss of contextual information. While some individual gluten proteins might have a positive or negative influence on gluten quality, it is the sum total of these proteins, their relative and absolute expression, their sub-cellular trafficking, the amount and size of glutenin polymers, and ratios between gluten protein classes that define viscoelasticity of gluten. The sub-cellular trafficking of gluten proteins during seed maturation is still not completely clear and there is evidence of dual pathways and therefore different destinations for proteins, either constitutively or temporally. The trafficking of proteins is also unclear in endosperm cells as they undergo programmed cell death; Golgi disappear around 12 DPA but protein filling continues at least to 25 DPA. Modulation of the timing of cellular events will invariably affect protein deposition and therefore gluten strength and function. Existing and emerging proteomics technologies such as proteoform profiling and top-down proteomics offer new tools to study gluten protein composition as a whole system and identify compositional patterns that can modify gluten structure with improved functionality.
Collapse
Affiliation(s)
- Ray Bacala
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, Manitoba, R3C 3G8, Canada; University of Manitoba, Department of Chemistry, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Dave W Hatcher
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, Manitoba, R3C 3G8, Canada
| | - Héléne Perreault
- University of Manitoba, Department of Chemistry, 144 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Bin Xiao Fu
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, Manitoba, R3C 3G8, Canada; Department of Food and Human Nutritional Sciences, 209 - 35 Chancellor's Circle, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.
| |
Collapse
|
3
|
Altenbach SB, Chang HC, Simon-Buss A, Mohr T, Huo N, Gu YQ. Exploiting the reference genome sequence of hexaploid wheat: a proteomic study of flour proteins from the cultivar Chinese Spring. Funct Integr Genomics 2019; 20:1-16. [PMID: 31250230 PMCID: PMC6954139 DOI: 10.1007/s10142-019-00694-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/12/2019] [Accepted: 05/31/2019] [Indexed: 12/18/2022]
Abstract
Although the economic value of wheat flour is determined by the complement of gluten proteins, these proteins have been challenging to study because of the complexity of the major protein groups and the tremendous sequence diversity among wheat cultivars. The completion of a high-quality wheat genome sequence from the reference wheat Chinese Spring recently facilitated the assembly and annotation of a complete set of gluten protein genes from a single cultivar, making it possible to link individual proteins in the flour to specific gene sequences. In a proteomic analysis of total wheat flour protein from Chinese Spring using quantitative two-dimensional gel electrophoresis combined with tandem mass spectrometry, gliadins or low-molecular-weight glutenin subunits were identified as the predominant proteins in 72 protein spots. Individual spots were associated with 40 of 56 Chinese Spring gene sequences, including 16 of 26 alpha gliadins, 10 of 11 gamma gliadins, six of seven omega gliadins, one of two delta gliadins, and nine of ten LMW-GS. Most genes that were not associated with protein spots were either expressed at low levels in endosperm or encoded proteins with high similarity to other proteins. A wide range of protein accumulation levels were observed and discrepancies between transcript levels and protein levels were noted. This work together with similar studies using other commercial cultivars should provide new insight into the molecular basis of wheat flour quality and allergenic potential.
Collapse
Affiliation(s)
- Susan B Altenbach
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA.
| | - Han-Chang Chang
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Annamaria Simon-Buss
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Toni Mohr
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Naxin Huo
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Yong Q Gu
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| |
Collapse
|
4
|
Noma S, Hayakawa K, Abe C, Suzuki S, Kawaura K. Contribution of α-gliadin alleles to the extensibility of flour dough in Japanese wheat cultivars. J Cereal Sci 2019. [DOI: 10.1016/j.jcs.2018.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
5
|
Mouzo D, Bernal J, López-Pedrouso M, Franco D, Zapata C. Advances in the Biology of Seed and Vegetative Storage Proteins Based on Two-Dimensional Electrophoresis Coupled to Mass Spectrometry. Molecules 2018; 23:E2462. [PMID: 30261600 PMCID: PMC6222612 DOI: 10.3390/molecules23102462] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 12/24/2022] Open
Abstract
Seed storage proteins play a fundamental role in plant reproduction and human nutrition. They accumulate during seed development as reserve material for germination and seedling growth and are a major source of dietary protein for human consumption. Storage proteins encompass multiple isoforms encoded by multi-gene families that undergo abundant glycosylations and phosphorylations. Two-dimensional electrophoresis (2-DE) is a proteomic tool especially suitable for the characterization of storage proteins because of their peculiar characteristics. In particular, storage proteins are soluble multimeric proteins highly represented in the seed proteome that contain polypeptides of molecular mass between 10 and 130 kDa. In addition, high-resolution profiles can be achieved by applying targeted 2-DE protocols. 2-DE coupled with mass spectrometry (MS) has traditionally been the methodology of choice in numerous studies on the biology of storage proteins in a wide diversity of plants. 2-DE-based reference maps have decisively contributed to the current state of our knowledge about storage proteins in multiple key aspects, including identification of isoforms and quantification of their relative abundance, identification of phosphorylated isoforms and assessment of their phosphorylation status, and dynamic changes of isoforms during seed development and germination both qualitatively and quantitatively. These advances have translated into relevant information about meaningful traits in seed breeding such as protein quality, longevity, gluten and allergen content, stress response and antifungal, antibacterial, and insect susceptibility. This review addresses progress on the biology of storage proteins and application areas in seed breeding using 2-DE-based maps.
Collapse
Affiliation(s)
- Daniel Mouzo
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Javier Bernal
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - María López-Pedrouso
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Daniel Franco
- Meat Technology Center of Galicia, 32900 San Cibrao das Viñas, Ourense, Spain.
| | - Carlos Zapata
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| |
Collapse
|
6
|
Cho K, Beom HR, Jang YR, Altenbach SB, Vensel WH, Simon-Buss A, Lim SH, Kim MG, Lee JY. Proteomic Profiling and Epitope Analysis of the Complex α-, γ-, and ω-Gliadin Families in a Commercial Bread Wheat. FRONTIERS IN PLANT SCIENCE 2018; 9:818. [PMID: 29971078 PMCID: PMC6018075 DOI: 10.3389/fpls.2018.00818] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/28/2018] [Indexed: 05/24/2023]
Abstract
Wheat gliadins are a complex group of proteins that contribute to the functional properties of wheat flour doughs and contain epitopes that are relevant for celiac disease (CD) and wheat-dependent exercise-induced anaphylaxis (WDEIA). In this study, we extracted ethanol-soluble gliadin fractions from flour of the Korean bread wheat cultivar Keumkang. Proteins were separated by 2-dimensional gel electrophoresis (2-DE) using a pI range of 6-11 in the first dimension and subjected to tandem mass spectrometry. α-, γ-, and ω-gliadins were identified as the predominant proteins in 31, 28, and one 2-DE spot, respectively. An additional six ω-gliadins were identified in a separate experiment in which a pI range of 3-11 was used for protein separation. We analyzed the composition of CD- and WDEIA-relevant epitopes in the gliadin sequences from Keumkang flour, demonstrating the immunogenic potential of this cultivar. Detailed knowledge about the complement of gliadins accumulated in Keumkang flour provides the background necessary to devise either breeding or biotechnology strategies to improve the functional properties and reduce the adverse health effects of the flour.
Collapse
Affiliation(s)
- Kyoungwon Cho
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South Korea
| | - Hye-Rang Beom
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South Korea
| | - You-Ran Jang
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South Korea
| | - Susan B. Altenbach
- Western Regional Research Center, United States Department of Agriculture, Agricultural Research Service, Albany, CA, United States
| | - William H. Vensel
- Western Regional Research Center, United States Department of Agriculture, Agricultural Research Service, Albany, CA, United States
| | - Annamaria Simon-Buss
- Western Regional Research Center, United States Department of Agriculture, Agricultural Research Service, Albany, CA, United States
| | - Sun-Hyung Lim
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South Korea
| | - Min G. Kim
- College of Pharmacy and Research Institute of Pharmaceutical Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, South Korea
| | - Jong-Yeol Lee
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South Korea
| |
Collapse
|