1
|
Ye L, Zheng W, Li X, Han W, Shen J, Lin Q, Hou L, Liao L, Zeng X. The Role of Gluten in Food Products and Dietary Restriction: Exploring the Potential for Restoring Immune Tolerance. Foods 2023; 12:4179. [PMID: 38002235 PMCID: PMC10670377 DOI: 10.3390/foods12224179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
Wheat is extensively utilized in various processed foods due to unique proteins forming from the gluten network. The gluten network in food undergoes morphological and molecular structural changes during food processing, affecting the final quality and digestibility of the food. The present review introduces the formation of the gluten network and the role of gluten in the key steps of the production of several typical food products such as bread, pasta, and beer. Also, it summarizes the factors that affect the digestibility of gluten, considering that different processing conditions probably affect its structure and properties, contributing to an in-depth understanding of the digestion of gluten by the human body under various circumstances. Nevertheless, consumption of gluten protein may lead to the development of celiac disease (CD). The best way is theoretically proposed to prevent and treat CD by the inducement of oral tolerance, an immune non-response system formed by the interaction of oral food antigens with the intestinal immune system. This review proposes the restoration of oral tolerance in CD patients through adjunctive dietary therapy via gluten-encapsulated/modified dietary polyphenols. It will reduce the dietary restriction of gluten and help patients achieve a comprehensive dietary intake by better understanding the interactions between gluten and food-derived active products like polyphenols.
Collapse
Affiliation(s)
- Li Ye
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Wenyu Zheng
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xue Li
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Wenmin Han
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Jialing Shen
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Qiuya Lin
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Liyan Hou
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Lan Liao
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
| | - Xin’an Zeng
- Guangdong Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; (L.Y.); (W.Z.); (X.L.); (W.H.); (J.S.); (Q.L.); (L.H.)
- Department of Food Science, Foshan University, Foshan 528000, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
2
|
Rani M, Siddiqi RA, Sharma R, Gill BS, Sogi DS. Functional and structural properties of gliadin as influenced by pH, extraction protocols, and wheat cultivars. Int J Biol Macromol 2023; 234:123484. [PMID: 36731704 DOI: 10.1016/j.ijbiomac.2023.123484] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 01/02/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023]
Abstract
Gliadin, owing to its low cost, ease to extract, high foaming capacity, easily available and high surface hydrophobicity, has found a wide range of applications both in the food and pharmaceutical sectors. The functional and structural characteristics of gliadin extracted with four extraction protocols from six wheat cultivars were investigated in this study. The surface-active properties of gliadin protein as a function of pH, extraction protocols, and wheat cultivars were compared, including solubility, zeta-potential, foaming properties, emulsion properties, surface hydrophobicity and secondary structure. Overall gliadin extracted using different extraction protocols and from different wheat cultivars was found to be higher in β-turns (24.88-37.91 %), followed by β-sheet (12.81-22.37 %), α-helix (15.13-20.70 %) and lower in random coil (6.53-9.08 %). Varied pH ranges, wheat cultivars, and different extraction protocols were found to have a substantial impact on solubility, zeta potential, foaming stability, emulsion capacity and surface hydrophobicity. The foaming capacity was observed to be more influenced by extraction protocols than wheat cultivars. Emulsion stability showed statistically significant (p ≤ 0.05) influence between the wheat cultivars, and a non-significant (p ≥ 0.05) difference among extraction protocols. The functional properties of freeze-dried gliadin extracted using different protocols were found to be pH-dependent. A comprehensive understanding of how the structural, surface active and functional properties of gliadin are influenced by the extraction protocols and wheat cultivars will enable us to understand the gliadin better and broaden its use for both food and non-food applications.
Collapse
Affiliation(s)
- Monika Rani
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Raashid Ahmad Siddiqi
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Ritika Sharma
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Balmeet Singh Gill
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Dalbir Singh Sogi
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, Punjab, India.
| |
Collapse
|
3
|
Grácio M, Oliveira S, Lima A, Boavida Ferreira R. RuBisCO as a protein source for potential food applications: a review. Food Chem 2023; 419:135993. [PMID: 37030211 DOI: 10.1016/j.foodchem.2023.135993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 03/29/2023]
Abstract
RuBisCO is a complete protein, widely abundant and recognized as ideal for human consumption. Further, its biochemical composition, organoleptic and physical features mean RuBisCO has potential as a nutritionally beneficial food additive. Nonetheless, despite growing plant-based market trends, there is a lack of information about the applications of this protein. Here, we explored the biochemical features of RuBisCO as a potential food additive and compared it with other plant protein sources currently available. We describe potential advantages, including nutritional content, digestibility, non-allergenicity and, potential bioactivities. Despite the lack of industrial procedures for RuBisCO purification, a growing number of novel methods are emerging, justifying discussion of their feasibilities. Overall, this information can help both researchers and industry to review the use RuBisCO as a sustainable source of protein for plant-based food products or formulation of novel functional foods.
Collapse
|
4
|
Janssen F, Monterde V, Wouters AGB. Relevance of the air-water interfacial and foaming properties of (modified) wheat proteins for food systems. Compr Rev Food Sci Food Saf 2023; 22:1517-1554. [PMID: 36815740 DOI: 10.1111/1541-4337.13120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/16/2022] [Accepted: 01/20/2023] [Indexed: 02/24/2023]
Abstract
A shift from animal protein- to plant protein-based foods is crucial in transitioning toward a more sustainable global food system. Among food products typically stabilized by animal proteins, food foams represent a major category. Wheat proteins are ubiquitous and structurally diverse, which offers opportunities for exploiting them for food foam and air-water interface stabilization. Notably, they are often classified into those that are soluble in aqueous systems (albumins and globulins) and those that are not (gliadins and glutenins). However, gliadins are at least to an extent water extractable and thus surface active. We here provide a comprehensive overview of studies investigating the air-water interfacial and foaming properties of the different wheat protein fractions. Characteristics in model systems are related to the functional role that wheat proteins play in gas cell stabilization in existing wheat-based foods (bread dough, cake batter, and beer foam). Still, to further extend the applicability of wheat proteins, and particularly the poorly soluble glutenins, to other food foams, their modification is required. Different physical, (bio)chemical, and other modification strategies that have been utilized to alter the solubility and therefore the air-water interfacial and foaming properties of the gluten protein fraction are critically reviewed. Such approaches may open up new opportunities for the application of (modified) gluten proteins in other food products, such as plant-based meringues, whippable drinks, or ice cream. In each section, important knowledge gaps are highlighted and perspectives for research efforts that could lead to the rational design of wheat protein systems with enhanced functionality and overall an increased applicability in food industry are proposed.
Collapse
Affiliation(s)
- Frederik Janssen
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Viena Monterde
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Arno G B Wouters
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| |
Collapse
|
5
|
Zhou FZ, Yu XH, Luo DH, Yang XQ, Yin SW. Pickering water in oil emulsions prepared from biocompatible gliadin/ethyl cellulose complex particles. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
6
|
Zhang M, Jia R, Ma M, Yang T, Sun Q, Li M. Versatile wheat gluten: functional properties and application in the food-related industry. Crit Rev Food Sci Nutr 2022; 63:10444-10460. [PMID: 35608010 DOI: 10.1080/10408398.2022.2078785] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Gluten is a key component that allows wheat flour to form a dough, and it is also a byproduct of the production of wheat starch. As a commercial product, wheat gluten is increasingly used in the food-related industry because of its versatile functional properties and wide range of sources. Wheat gluten is manufactured industrially on a large scale through the Martin process and batter process and variants thereof. Gliadin and glutenin impart cohesiveness and elasticity properties, respectively, to wheat gluten. The formation of gluten networks and polymers depends mainly on covalent bonds (disulfide bonds) and noncovalent bonds (ionic bonds, hydrogen bonds, and hydrophobic interactions). The multifunctional properties (viscoelasticity, gelation, foamability, etc.) of wheat gluten are shown by rehydration and other processing techniques. Wheat gluten has been widely used in wheat-based products, food auxiliary agents, food packaging, encapsulation and release of food functional ingredients, food adsorption and heat insulation materials, special purpose foods, and versatile applications. In the future, wheat gluten protein will be used as an important raw material to participate in the development and preparation of various food and degradable materials, and the application potential of wheat gluten in food-related industries will be massive. This review summarizes the main manufacturing processes, composition, and structure of gluten protein, and the various functional properties that support its application in the food and related industries.
Collapse
Affiliation(s)
- Mengli Zhang
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, P.R. China
| | - Ruobing Jia
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, P.R. China
| | - Meng Ma
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, P.R. China
- United States Department of Agriculture-Agricultural Research Services, Beltsville Agricultural Research Center, Beltsville, Maryland, USA
| | - Tianbao Yang
- United States Department of Agriculture-Agricultural Research Services, Beltsville Agricultural Research Center, Beltsville, Maryland, USA
| | - Qingjie Sun
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, P.R. China
| | - Man Li
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, P.R. China
| |
Collapse
|
7
|
Comparison of interaction mechanism between chlorogenic acid/luteolin and glutenin/gliadin by multi-spectroscopic and thermodynamic methods. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
8
|
Dense Phases of γ-Gliadins in Confined Geometries. COLLOIDS AND INTERFACES 2021. [DOI: 10.3390/colloids5040051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The binary phase diagram of γ-gliadin, a wheat storage protein, in water was explored thanks to the microevaporator, an original PDMS microfluidic device. This protein, usually qualified as insoluble in aqueous environments, displayed a partial solubility in water. Two liquid phases, a very dilute and a dense phase, were identified after a few hours of accumulation time in the microevaporator. This liquid–liquid phase separation (LLPS) was further characterized through in situ micro-Raman spectroscopy of the dilute and dense protein phases. Micro-Raman spectroscopy showed a specific orientation of phenylalanine residues perpendicular to the PDMS surfaces only for the diluted phase. This orientation was ascribed to the protein adsorption at interfaces, which would act as nuclei for the growth of dense phase in bulk. This study, thanks to the use of both aqueous solvent and a microevaporator, would provide some evidence for a possible physicochemical origin of the gliadin assembly in the endoplasmic reticulum of albumen cells, leading to the formation of dense phases called protein bodies. The microfluidic tool could be used also in food science to probe protein–protein interactions in order to build up phase diagrams.
Collapse
|
9
|
Pycarelle SC, Delcour JA. The role and impact on quality of exogenous and endogenous lipids during sponge cake making. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
10
|
Sun F, Xie X, Zhang Y, Ma M, Wang Y, Duan J, Lu X, Yang G, He G. Wheat gliadin in ethanol solutions treated using cold air plasma at atmospheric pressure. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100808] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
11
|
Zhu X, Chen Y, Hu Y, Han Y, Xu J, Zhao Y, Chen X, Li B. Tuning the molecular interactions between gliadin and tannic acid to prepare Pickering stabilizers with improved emulsifying properties. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106179] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
12
|
Sahli L, Boire A, Solé-Jamault V, Rogniaux H, Giuliani A, Roblin P, Renard D. New exploration of the γ-gliadin structure through its partial hydrolysis. Int J Biol Macromol 2020; 165:654-664. [PMID: 32991891 DOI: 10.1016/j.ijbiomac.2020.09.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/18/2020] [Accepted: 09/18/2020] [Indexed: 11/25/2022]
Abstract
The partial enzymatic hydrolysis of wheat gliadins constitutes an interesting tool to unravel their structural specificity. In this work, the structure and conformation of γ-gliadin were investigated through its limited chymotrypsic digestion. Using a combination of computational, biochemical and biophysical tools, we studied each of its N and C terminal domains. Our results reveal that γ-gliadin is a partially disordered protein with an unfolded N-terminal domain surprisingly resistant to chymotrypsin and a folded C-terminal domain. Using spectroscopic tools, we showed that structural transitions occured over the disordered N-terminal domain for decreasing ethanol/water ratios. Using SAXS measurements, low-resolution 3D structures of γ-gliadin were proposed. To relate the repeated motifs of the N-terminal domain of γ-gliadin to its structure, engineered peptide models PQQPY/F were also studied. Overall results demonstrated similarities between the N-terminal domain and its derived model peptides. Our findings support the use of these peptides as general templates for understanding the wheat protein assembly and dynamics.
Collapse
Affiliation(s)
- Line Sahli
- INRAE, UR1268 Biopolymers Interactions Assemblies, 44300 Nantes, France
| | - Adeline Boire
- INRAE, UR1268 Biopolymers Interactions Assemblies, 44300 Nantes, France
| | | | - Hélène Rogniaux
- INRAE, UR1268 Biopolymers Interactions Assemblies, 44300 Nantes, France; INRAE, BIBS Platform, 44300 Nantes, France
| | - Alexandre Giuliani
- DISCO Beamline, Synchrotron Soleil, l'Orme des Merisiers, 91192 Gif sur Yvette, France; UAR 1008, Transform, INRAE, BP 71627, F-44316, Nantes, France
| | - Pierre Roblin
- Laboratoire de Génie Chimique and Fédération de Recherche FERMAT, 4 allée Emile Monso, 31030 Toulouse, France
| | - Denis Renard
- INRAE, UR1268 Biopolymers Interactions Assemblies, 44300 Nantes, France.
| |
Collapse
|
13
|
Cochereau R, Renard D, Noûs C, Boire A. Semi-permeable vesicles produced by microfluidics to tune the phase behaviour of encapsulated macromolecules. J Colloid Interface Sci 2020; 580:709-719. [PMID: 32712477 DOI: 10.1016/j.jcis.2020.07.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/28/2020] [Accepted: 07/05/2020] [Indexed: 12/11/2022]
Abstract
Understanding the dynamics of macromolecular assemblies in solution, such as Liquid-Liquid Phase Separation (LLPS), represents technologic and fundamental challenges in many fields. In cell biology, such dynamics are of great interest, because of their involvement in subcellular processes. In our study, we aimed to control the assembly of macromolecules in aqueous semi-permeable vesicles, that we named osmosomes, using microfluidics. We developed a microfluidic chip that allows for producting and trapping Giant Unilamellar Vesicles (GUVs) encapsulating macromolecules. This device also allows for modification of the composition of the inner phase and of the membranes of the trapped GUVs. The vesicles are produced from water-in-oil-in-water (w/o/w) double emulsions in less than 20 min after discarding the oil phase. They are highly monodisperse and their diameter can be modulated between 20 and 110 µm by tuning the flow rates of fluid phases. Their unilamellarity is proofed by two techniques: (1) fluorescence quenching experiments and (2) the insertion of the α-hemolysin membrane protein pore. We demonstrate that the internal pH of osmosomes can be tuned in less than 1 min by controlling solvent exchanges through the α-hemolysin pores. The detailed analysis of the exchange kinetics suggests that the microfluidic chip provides an efficient pore formation due to the physical trapping of vesicles and the constant flow rate. Finally, we show a proof of concept for macromolecular assembly within osmosomes by pH-triggered LLPS of wheat proteins within a few minutes.
Collapse
|
14
|
Ceresino EB, Johansson E, Sato HH, Plivelic TS, Hall SA, Kuktaite R. Morphological and structural heterogeneity of solid gliadin food foams modified with transglutaminase and food grade dispersants. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105995] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
15
|
Peng D, Jin W, Arts M, Yang J, Li B, Sagis LM. Effect of CMC degree of substitution and gliadin/CMC ratio on surface rheology and foaming behavior of gliadin/CMC nanoparticles. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105955] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Yan X, Ma C, Cui F, McClements DJ, Liu X, Liu F. Protein-stabilized Pickering emulsions: Formation, stability, properties, and applications in foods. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.07.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
17
|
Ma L, Zou L, McClements DJ, Liu W. One-step preparation of high internal phase emulsions using natural edible Pickering stabilizers: Gliadin nanoparticles/gum Arabic. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105381] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Youssef H, DeWolf CE. Interfacial Self-Assembly of Antimicrobial Peptide GL13K into Non-Fibril Crystalline β-Sheets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:660-665. [PMID: 31880463 DOI: 10.1021/acs.langmuir.9b03120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The need for new and potent antibiotics in an era of increasing multidrug resistance in bacteria has driven the search for new antimicrobial agents, including the design of synthetic antimicrobial peptides (AMPs). While a number of β-sheet forming AMPs have been proposed, their similarity to β-amyloids raises a number of concerns associated with neurodegenerative states. GL13K is an effective, synthetic AMP that selectively folds into β-sheets at anionic interfaces. Moreover, it is one of relatively few AMPs that preferentially fold into β-sheets without bridging disulfides. The interfacial activity of GL13K and its propensity to form amyloid fibrils have not been investigated. Using structural studies at the air/water interface and in the absence of anionic lipids, we demonstrate that while GL13K does form crystalline β-sheets, it does not self-assemble into fibrils. This work emphasizes the requirement for a single charged amino acid in the hydrophobic face to prevent fibril formation in synthetic peptides.
Collapse
Affiliation(s)
- Hala Youssef
- Department of Chemistry and Biochemistry and Centre for NanoScience Research , Concordia University , 7141 Sherbrooke Street West , Montreal H4B 1R6 , Canada
| | - Christine E DeWolf
- Department of Chemistry and Biochemistry and Centre for NanoScience Research , Concordia University , 7141 Sherbrooke Street West , Montreal H4B 1R6 , Canada
| |
Collapse
|
19
|
Sahli L, Renard D, Solé-Jamault V, Giuliani A, Boire A. Role of protein conformation and weak interactions on γ-gliadin liquid-liquid phase separation. Sci Rep 2019; 9:13391. [PMID: 31527735 PMCID: PMC6746847 DOI: 10.1038/s41598-019-49745-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/29/2019] [Indexed: 02/02/2023] Open
Abstract
Wheat storage proteins, gliadins, were found to form in vitro condensates in 55% ethanol/water mixture by decreasing temperature. The possible role of this liquid-liquid phase separation (LLPS) process on the in vivo gliadins storage is elusive and remains to be explored. Here we use γ-gliadin as a model of wheat proteins to probe gliadins behavior in conditions near physiological conditions. Bioinformatic analyses suggest that γ-gliadin is a hybrid protein with N-terminal domain predicted to be disordered and C-terminal domain predicted to be ordered. Spectroscopic data highlight the disordered nature of γ-gliadin. We developed an in vitro approach consisting to first solubilize γ-gliadin in 55% ethanol (v/v) and to progressively decrease ethanol ratio in favor of increased aqueous solution. Our results show the ability of γ-gliadin to self-assemble into dynamic droplets through LLPS, with saturation concentrations ranging from 25.9 µM ± 0.85 µM (35% ethanol (v/v)) to 3.8 µM ± 0.1 µM (0% ethanol (v/v)). We demonstrate the importance of the predicted ordered C-terminal domain of γ-gliadin in the LLPS by highlighting the protein condensates transition from a liquid to a solid state under reducing conditions. We demonstrate by increasing ionic strength the role displayed by electrostatic interactions in the phase separation. We also show the importance of hydrogen bonds in this process. Finally, we discuss the importance of gliadins condensates in their accumulation and storage in the wheat seed.
Collapse
Affiliation(s)
- Line Sahli
- INRA, UR1268 Biopolymers Interactions Assemblies, 44300, Nantes, France.
| | - Denis Renard
- INRA, UR1268 Biopolymers Interactions Assemblies, 44300, Nantes, France
| | | | - Alexandre Giuliani
- DISCO beamline, Synchrotron Soleil, l'Orme des Merisiers, 91192, Gif sur Yvette, France
- UAR 1008, CEPIA, INRA, BP 71627, F-44316, Nantes, France
| | - Adeline Boire
- INRA, UR1268 Biopolymers Interactions Assemblies, 44300, Nantes, France
| |
Collapse
|
20
|
Gómez Castro MF, Miculán E, Herrera MG, Ruera C, Perez F, Prieto ED, Barrera E, Pantano S, Carasi P, Chirdo FG. p31-43 Gliadin Peptide Forms Oligomers and Induces NLRP3 Inflammasome/Caspase 1- Dependent Mucosal Damage in Small Intestine. Front Immunol 2019; 10:31. [PMID: 30761127 PMCID: PMC6363691 DOI: 10.3389/fimmu.2019.00031] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/08/2019] [Indexed: 01/08/2023] Open
Abstract
Celiac disease (CD) is a chronic enteropathy elicited by a Th1 response to gluten peptides in the small intestine of genetically susceptible individuals. However, it remains unclear what drives the induction of inflammatory responses of this kind against harmless antigens in food. In a recent work, we have shown that the p31-43 peptide (p31-43) from α-gliadin can induce an innate immune response in the intestine and that this may initiate pathological adaptive immunity. The receptors and mechanisms responsible for the induction of innate immunity by p31-43 are unknown and here we present evidence that this may reflect conformational changes in the peptide that allow it to activate the NLRP3 inflammasome. Administration of p31-43, but not scrambled or inverted peptides, to normal mice induced enteropathy in the proximal small intestine, associated with increased production of type I interferon and mature IL-1β. P31-43 showed a sequence-specific spontaneous ability to form structured oligomers and aggregates in vitro and induced activation of the ASC speck complex. In parallel, the enteropathy induced by p31-43 in vivo did not occur in the absence of NLRP3 or caspase 1 and was inhibited by administration of the caspase 1 inhibitor Ac-YVAD-cmk. Collectively, these findings show that p31-43 gliadin has an intrinsic propensity to form oligomers which trigger the NLRP3 inflammasome and that this pathway is required for intestinal inflammation and pathology when p31-43 is administered orally to mice. This innate activation of the inflammasome may have important implications in the initial stages of CD pathogenesis.
Collapse
Affiliation(s)
- María Florencia Gómez Castro
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Emanuel Miculán
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - María Georgina Herrera
- Instituto de Fisicoquímica y Químicas Biológicas, Dr. Alejandro Paladini (CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Carolina Ruera
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Federico Perez
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Eduardo Daniel Prieto
- Laboratorio de Nanoscopía y Fisicoquímica de Superficies (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Exequiel Barrera
- Biomolecular Simulations Group, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Sergio Pantano
- Biomolecular Simulations Group, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Paula Carasi
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| | - Fernando Gabriel Chirdo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (CONICET), Universidad Nacional de La Plata, La Plata, Argentina
| |
Collapse
|
21
|
Poirier A, Banc A, Stocco A, In M, Ramos L. Multistep building of a soft plant protein film at the air-water interface. J Colloid Interface Sci 2018; 526:337-346. [DOI: 10.1016/j.jcis.2018.04.087] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 04/22/2018] [Accepted: 04/23/2018] [Indexed: 01/24/2023]
|
22
|
pH-, ion- and temperature-dependent emulsion gels: Fabricated by addition of whey protein to gliadin-nanoparticle coated lipid droplets. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.11.032] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
23
|
Foaming and surface properties of gliadin nanoparticles: Influence of pH and heating temperature. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.09.026] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
24
|
Zhou FZ, Yan L, Yin SW, Tang CH, Yang XQ. Development of Pickering Emulsions Stabilized by Gliadin/Proanthocyanidins Hybrid Particles (GPHPs) and the Fate of Lipid Oxidation and Digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1461-1471. [PMID: 29350533 DOI: 10.1021/acs.jafc.7b05261] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This work attempted to engineer emulsions' interface using the special affinity between proline-rich gliadin and proanthocyanidins (PA), to develop surfactant-free antioxidant Pickering emulsions with digestive-resistant properties. This binding interaction between gliadin and PA benefited the interfacial adsorption of the particles to corn oil droplets. Pickering droplets as building units assembled into an interconnected three-dimensional network structure, giving the emulsions viscoelasticity and ultrastability. Oxidative markers in Pickering emulsions were periodically monitored under thermally accelerated storage. Lipid digestion and oxidation fates were characterized using in vitro gastrointestinal (GI) models. The interfacial membrane constructed by antioxidant particles served as a valid barrier against lipid oxidation and digestion, in a PA dose-dependent manner. Briefly, lipid oxidation under storage and simulated GI tract was retarded. Free fatty acid (FFA) fraction released decreased by 55% from 87.9% (bulk oil) to 39.5% (Pickering emulsion), implying engineering interfacial architecture potentially benefited to fight obesity. This study opens a facile strategy to tune lipid oxidation and digestion profiles through the cooperation of the Pickering principle and the interfacial delivery of antioxidants.
Collapse
Affiliation(s)
- Fu-Zhen Zhou
- Research and Development Center of Food Proteins, School of Food Science and Engineering and ‡Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology , Guangzhou 510640, P.R. China
| | - Li Yan
- Research and Development Center of Food Proteins, School of Food Science and Engineering and ‡Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology , Guangzhou 510640, P.R. China
| | - Shou-Wei Yin
- Research and Development Center of Food Proteins, School of Food Science and Engineering and ‡Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology , Guangzhou 510640, P.R. China
| | - Chuan-He Tang
- Research and Development Center of Food Proteins, School of Food Science and Engineering and ‡Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology , Guangzhou 510640, P.R. China
| | - Xiao-Quan Yang
- Research and Development Center of Food Proteins, School of Food Science and Engineering and ‡Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology , Guangzhou 510640, P.R. China
| |
Collapse
|
25
|
Zhu JY, Tang CH, Yin SW, Yang XQ. Development and characterisation of polylactic acid-gliadin bilayer/trilayer films as carriers of thymol. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jun-You Zhu
- Research and Development Center of Food Proteins; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety; South China University of Technology; Guangzhou 510640 China
| | - Chuan-He Tang
- Research and Development Center of Food Proteins; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety; South China University of Technology; Guangzhou 510640 China
| | - Shou-Wei Yin
- Research and Development Center of Food Proteins; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety; South China University of Technology; Guangzhou 510640 China
- State Key Laboratory of Pulp and Paper Engineering; South China University of Technology; Guangzhou 510640 China
| | - Xiao-Quan Yang
- Research and Development Center of Food Proteins; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety; South China University of Technology; Guangzhou 510640 China
| |
Collapse
|
26
|
Zeng T, Wu ZL, Zhu JY, Yin SW, Tang CH, Wu LY, Yang XQ. Development of antioxidant Pickering high internal phase emulsions (HIPEs) stabilized by protein/polysaccharide hybrid particles as potential alternative for PHOs. Food Chem 2017; 231:122-130. [DOI: 10.1016/j.foodchem.2017.03.116] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 03/09/2017] [Accepted: 03/22/2017] [Indexed: 11/30/2022]
|
27
|
Boisselier É, Demers É, Cantin L, Salesse C. How to gather useful and valuable information from protein binding measurements using Langmuir lipid monolayers. Adv Colloid Interface Sci 2017; 243:60-76. [PMID: 28372794 DOI: 10.1016/j.cis.2017.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 12/22/2022]
Abstract
This review presents data on the influence of various experimental parameters on the binding of proteins onto Langmuir lipid monolayers. The users of the Langmuir methodology are often unaware of the importance of choosing appropriate experimental conditions to validate the data acquired with this method. The protein Retinitis pigmentosa 2 (RP2) has been used throughout this review to illustrate the influence of these experimental parameters on the data gathered with Langmuir monolayers. The methods detailed in this review include the determination of protein binding parameters from the measurement of adsorption isotherms, infrared spectra of the protein in solution and in monolayers, ellipsometric isotherms and fluorescence micrographs.
Collapse
Affiliation(s)
- Élodie Boisselier
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada.
| | - Éric Demers
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Line Cantin
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Christian Salesse
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada.
| |
Collapse
|
28
|
Peng D, Jin W, Li J, Xiong W, Pei Y, Wang Y, Li Y, Li B. Adsorption and Distribution of Edible Gliadin Nanoparticles at the Air/Water Interface. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2454-2460. [PMID: 28241119 DOI: 10.1021/acs.jafc.6b05757] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Edible gliadin nanoparticles (GNPs) were fabricated using the anti-solvent method. They possessed unique high foamability and foam stability. An increasing concentration of GNPs accelerated their initial adsorption speed from the bulk phase to the interface and raised the viscoelastic modulus of interfacial films. High foamability (174.2 ± 6.4%) was achieved at the very low concentration of GNPs (1 mg/mL), which was much better than that of ovalbumin and sodium caseinate. Three stages of adsorption kinetics at the air/water interface were characterized. First, they quickly diffused and adsorbed at the interface, resulting in a fast increase of the surface pressure. Then, nanoparticles started to fuse into a film, and finally, the smooth film became a firm and rigid layer to protect bubbles against coalescence and disproportionation. These results explained that GNPs had good foamability and high foam stability simultaneously. That provides GNPs as a potential candidate for new foaming agents applied in edible and biodegradable products.
Collapse
Affiliation(s)
- Dengfeng Peng
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Weiping Jin
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
- College of Food Science and Engineering, Wuhan Polytechnic University , Wuhan, Hubei 430023, People's Republic of China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Wenfei Xiong
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Yaqiong Pei
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Yuntao Wang
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Yan Li
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University , Wuhan, Hubei 430070, People's Republic of China
- Functional Food Enginnering & Technology Research Center of Hubei Province , Wuhan, Hubei 430070, People's Republic of China
| |
Collapse
|
29
|
EHD2 restrains dynamics of caveolae by an ATP-dependent, membrane-bound, open conformation. Proc Natl Acad Sci U S A 2017; 114:E4360-E4369. [PMID: 28223496 DOI: 10.1073/pnas.1614066114] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The EH-domain-containing protein 2 (EHD2) is a dynamin-related ATPase that confines caveolae to the cell surface by restricting the scission and subsequent endocytosis of these membrane pits. For this, EHD2 is thought to first bind to the membrane, then to oligomerize, and finally to detach, in a stringently regulated mechanistic cycle. It is still unclear how ATP is used in this process and whether membrane binding is coupled to conformational changes in the protein. Here, we show that the regulatory N-terminal residues and the EH domain keep the EHD2 dimer in an autoinhibited conformation in solution. By significantly advancing the use of infrared reflection-absorption spectroscopy, we demonstrate that EHD2 adopts an open conformation by tilting the helical domains upon membrane binding. We show that ATP binding enables partial insertion of EHD2 into the membrane, where G-domain-mediated oligomerization occurs. ATP hydrolysis is related to detachment of EHD2 from the membrane. Finally, we demonstrate that the regulation of EHD2 oligomerization in a membrane-bound state is crucial to restrict caveolae dynamics in cells.
Collapse
|
30
|
Hu YQ, Yin SW, Zhu JH, Qi JR, Guo J, Wu LY, Tang CH, Yang XQ. Fabrication and characterization of novel Pickering emulsions and Pickering high internal emulsions stabilized by gliadin colloidal particles. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.05.028] [Citation(s) in RCA: 179] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
31
|
The importance of cyclic structure for Labaditin on its antimicrobial activity against Staphylococcus aureus. Colloids Surf B Biointerfaces 2016; 148:453-459. [PMID: 27665378 DOI: 10.1016/j.colsurfb.2016.09.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/04/2016] [Accepted: 09/11/2016] [Indexed: 01/24/2023]
Abstract
Antimicrobial resistance has reached alarming levels in many countries, thus leading to a search for new classes of antibiotics, such as antimicrobial peptides whose activity is exerted by interacting specifically with the microorganism membrane. In this study, we investigate the molecular-level mechanism of action for Labaditin (Lo), a 10-amino acid residue cyclic peptide from Jatropha multifida with known bactericidal activity against Streptococcus mutans. We show that Lo is also effective against Staphylococcus aureus (S. aureus) but this does not apply to its linear analogue (L1). Using polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), we observed with that the secondary structure of Lo was preserved upon interacting with Langmuir monolayers from a phospholipid mixture mimicking S. aureus membrane, in contrast to L1. This structure preservation for the rigid, cyclic Lo is key for the self-assembly of peptide nanotubes that induce pore formation in large unilamellar vesicles (LUVs), according to permeability assays and dynamic light scattering measurements. In summary, the comparison between Labaditin (Lo) and its linear analogue L1 allowed us to infer that the bactericidal activity of Lo is more related to its interaction with the membrane. It does not require specific metabolic targets, which makes cyclic peptides promising for antibiotics without bacteria resistance.
Collapse
|
32
|
Yang J, Huang J, Zeng H, Chen L. Surface pressure affects B-hordein network formation at the air–water interface in relation to gastric digestibility. Colloids Surf B Biointerfaces 2015; 135:784-792. [DOI: 10.1016/j.colsurfb.2015.08.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/28/2015] [Accepted: 08/20/2015] [Indexed: 01/12/2023]
|
33
|
Demers É, Boisselier É, Horchani H, Blaudez D, Calvez P, Cantin L, Belley N, Champagne S, Desbat B, Salesse C. Lipid Selectivity, Orientation, and Extent of Membrane Binding of Nonacylated RP2. Biochemistry 2015; 54:2560-70. [DOI: 10.1021/bi501517r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Éric Demers
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Élodie Boisselier
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Habib Horchani
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Daniel Blaudez
- CBMN-UMR
5248 CNRS, Université de Bordeaux, IPB, Allée Geoffroy
Saint Hilaire, 33600 Pessac, France
| | - Philippe Calvez
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Line Cantin
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Nicolas Belley
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Sophie Champagne
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| | - Bernard Desbat
- CBMN-UMR
5248 CNRS, Université de Bordeaux, IPB, Allée Geoffroy
Saint Hilaire, 33600 Pessac, France
| | - Christian Salesse
- CUO-Recherche,
Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec
and Département d’ophtalmologie, Faculté de médecine,
and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada
| |
Collapse
|
34
|
Wang P, Tao H, Wu F, Yang N, Chen F, Jin Z, Xu X. Effect of frozen storage on the foaming properties of wheat gliadin. Food Chem 2014; 164:44-9. [DOI: 10.1016/j.foodchem.2014.05.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 05/04/2014] [Accepted: 05/06/2014] [Indexed: 11/28/2022]
|
35
|
Quester S, Dahesh M, Strey R. Microcellular foams made from gliadin. Colloid Polym Sci 2014; 292:2385-2389. [PMID: 25190899 PMCID: PMC4149742 DOI: 10.1007/s00396-014-3317-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 06/11/2014] [Accepted: 06/16/2014] [Indexed: 11/02/2022]
Abstract
We have generated closed-cell microcellular foams from gliadin, an abundantly available wheat storage protein. The extraction procedure of gliadin from wheat gluten, which involves only the natural solvents water and ethanol, respectively, is described with emphasis on the precipitation step of gliadin which results in a fine dispersion of mostly spherical, submicron gliadin particles composed of myriad of protein molecules. A dense packing of these particles was hydrated and subjected to an atmosphere of carbon dioxide or nitrogen in a high-pressure cell at 250 bar. Subsequent heating to temperatures close to but still below 100 °C followed by sudden expansion and simultaneous cooling resulted in closed-cell microcellular foam. The spherical gliadin templates along with the resulting foam have been analyzed by scanning electron microscope (SEM) pictures. The size distribution of the primary particles shows diameters peaked around 0.54 μm, and the final foam cell size peaks around 1.2 μm, at a porosity of about 80 %. These are the smallest foam cell sizes ever reported for gliadin. Interestingly, the cell walls of these microcellular foams are remarkably thin with thicknesses in the lower nanometer range, thus nourishing the hope to be able to reach gliadin nanofoam.
Collapse
Affiliation(s)
- S Quester
- Department of Chemistry, Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany
| | - M Dahesh
- Laboratoire Charles Coulomb UMR 5221, Université Montpellier 2, CNRS, 34095 Montpellier, France ; Laboratoire Charles Coulomb UMR 5221, CNRS, 34095 Montpellier, France ; UMR IATE, UM2-CIRAD-INRA-SupAgro, 2 Place Pierre Viala, 34070 Montpellier, France
| | - R Strey
- Department of Chemistry, Institute of Physical Chemistry, University of Cologne, 50939 Cologne, Germany
| |
Collapse
|
36
|
Lhor M, Bernier SC, Horchani H, Bussières S, Cantin L, Desbat B, Salesse C. Comparison between the behavior of different hydrophobic peptides allowing membrane anchoring of proteins. Adv Colloid Interface Sci 2014; 207:223-39. [PMID: 24560216 PMCID: PMC4028306 DOI: 10.1016/j.cis.2014.01.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 01/11/2014] [Accepted: 01/13/2014] [Indexed: 10/25/2022]
Abstract
Membrane binding of proteins such as short chain dehydrogenase reductases or tail-anchored proteins relies on their N- and/or C-terminal hydrophobic transmembrane segment. In this review, we propose guidelines to characterize such hydrophobic peptide segments using spectroscopic and biophysical measurements. The secondary structure content of the C-terminal peptides of retinol dehydrogenase 8, RGS9-1 anchor protein, lecithin retinol acyl transferase, and of the N-terminal peptide of retinol dehydrogenase 11 has been deduced by prediction tools from their primary sequence as well as by using infrared or circular dichroism analyses. Depending on the solvent and the solubilization method, significant structural differences were observed, often involving α-helices. The helical structure of these peptides was found to be consistent with their presumed membrane binding. Langmuir monolayers have been used as membrane models to study lipid-peptide interactions. The values of maximum insertion pressure obtained for all peptides using a monolayer of 1,2-dioleoyl-sn-glycero-3-phospho-ethanolamine (DOPE) are larger than the estimated lateral pressure of membranes, thus suggesting that they bind membranes. Polarization modulation infrared reflection absorption spectroscopy has been used to determine the structure and orientation of these peptides in the absence and in the presence of a DOPE monolayer. This lipid induced an increase or a decrease in the organization of the peptide secondary structure. Further measurements are necessary using other lipids to better understand the membrane interactions of these peptides.
Collapse
Affiliation(s)
- Mustapha Lhor
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Sarah C Bernier
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Habib Horchani
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Sylvain Bussières
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Line Cantin
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada
| | - Bernard Desbat
- CBMN-UMR 5248 CNRS, Université de Bordeaux, IPB, Allée Geoffroy Saint Hilaire, 33600 Pessac, France
| | - Christian Salesse
- CUO-Recherche, Centre de recherche du CHU de Québec, Hôpital du Saint-Sacrement, Département d'ophtalmologie, Faculté de médecine, Université Laval, Québec, Québec G1V 0A6, Canada; Regroupement stratégique PROTEO, Université Laval, Québec, Québec G1V 0A6, Canada.
| |
Collapse
|
37
|
Sarkis J, Rocha J, Maniti O, Jouhet J, Vié V, Block MA, Breton C, Maréchal E, Girard‐Egrot A. The influence of lipids on MGD1 membrane binding highlights novel mechanisms for galactolipid biosynthesis regulation in chloroplasts. FASEB J 2014; 28:3114-23. [DOI: 10.1096/fj.14-250415] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Joe Sarkis
- Equipe Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS) TeamInstitut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS)Unité Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 5246University of Lyon 1VilleurbanneFrance
| | - Joana Rocha
- Centre de Recherches sur les Macromolécules Végétales (CERMAV), CNRSUniversity of Grenoble 1GrenobleFrance
| | - Ofelia Maniti
- Equipe Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS) TeamInstitut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS)Unité Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 5246University of Lyon 1VilleurbanneFrance
| | - Juliette Jouhet
- Laboratoire de Physiologie Cellulaire et Végétale, CNRSCommissariat à l'énergie Atomique et aux énergies Alternatives (CEA)Institut National de Recherche Agronomique (INRA)University of Grenoble Alpes, UMR 5168GrenobleFrance
| | - Véronique Vié
- Institut de Physique de Rennes (IPR), UMR CNRS 6251University of Rennes 1Campus BeaulieuRennesFrance
| | - Maryse A. Block
- Laboratoire de Physiologie Cellulaire et Végétale, CNRSCommissariat à l'énergie Atomique et aux énergies Alternatives (CEA)Institut National de Recherche Agronomique (INRA)University of Grenoble Alpes, UMR 5168GrenobleFrance
| | - Christelle Breton
- Centre de Recherches sur les Macromolécules Végétales (CERMAV), CNRSUniversity of Grenoble 1GrenobleFrance
| | - Eric Maréchal
- Laboratoire de Physiologie Cellulaire et Végétale, CNRSCommissariat à l'énergie Atomique et aux énergies Alternatives (CEA)Institut National de Recherche Agronomique (INRA)University of Grenoble Alpes, UMR 5168GrenobleFrance
| | - Agnès Girard‐Egrot
- Equipe Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS) TeamInstitut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS)Unité Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS) 5246University of Lyon 1VilleurbanneFrance
| |
Collapse
|
38
|
Blume A, Kerth A. Peptide and protein binding to lipid monolayers studied by FT-IRRA spectroscopy. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1828:2294-305. [PMID: 23816442 DOI: 10.1016/j.bbamem.2013.04.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 04/12/2013] [Indexed: 12/30/2022]
Abstract
Lipid monolayers at the air-water interface represent half of a lipid bilayer and are therefore suitable model systems for studying the binding of peripheral proteins and polypeptides as well as proteins containing hydrophobic membrane anchors to membrane interfaces. Infrared reflection-absorption spectroscopy (IRRAS) of these monolayer films at the air-water interface provides information on the state of the lipid monolayers as well as on the conformational and orientational order of the film constituents. We will review shortly the experimental set-up and the possibilities for obtaining structural information before several applications of the method to lipid-protein monolayers will be described. We will focus on examples where the analysis of the protein and peptide bands for pure monolayers of these compounds are combined with experiments where the same compounds are bound to lipid monolayers. Combination of these experiments leads to detailed information about the conformational properties and the orientation of the molecules at the air-water interface in contrast to being bound to the lipid-water interface. This article is part of a Special Issue entitled: FTIR in membrane proteins and peptide studies.
Collapse
Affiliation(s)
- Alfred Blume
- Institute of Chemistry, Martin-Luther-University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120, Halle Saale, Germany.
| | | |
Collapse
|
39
|
Interplay of mycolic acids, antimycobacterial compounds and pulmonary surfactant membrane: A biophysical approach to disease. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1828:896-905. [DOI: 10.1016/j.bbamem.2012.09.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 09/14/2012] [Accepted: 09/19/2012] [Indexed: 11/17/2022]
|
40
|
|
41
|
Ta HP, Berthelot K, Coulary-Salin B, Desbat B, Géan J, Servant L, Cullin C, Lecomte S. Comparative studies of nontoxic and toxic amyloids interacting with membrane models at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:4797-4807. [PMID: 21405042 DOI: 10.1021/la103788r] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Many in vitro studies have pointed out the interaction between amyloids and membranes, and their potential involvement in amyloid toxicity. In a previous study, we generated a yeast toxic mutant (M8) of the harmless model amyloid protein HET-s((218-289)). In this study, we compared the self-assembling process of the nontoxic wild-type (WT) and toxic (M8) protein at the air-water interface and in interaction with various phospholipid monolayers (DOPE, DOPC, DOPI, DOPS and DOPG). We first demonstrate using ellipsometry measurements and polarization-modulated infrared reflection absorption spectroscopy (PMIRRAS) that the air-water interface promotes and modifies the assembly of WT since an amyloid-like film was instantaneously formed at the interface with an antiparallel β-sheet structuration instead of the parallel β-sheet commonly observed for amyloid fibers generated in solution. The toxic mutant (M8) behaves in a similar manner at the air-water interface or in bulk, with a fast self-assembling and an antiparallel β-sheet organization. The transmission electron microscopy (TEM) images established the fibrillous morphology of the protein films formed at the air-water interface. Second, we demonstrate for the first time that the main driving force between this particular fungus amyloid and membrane interaction is based on electrostatic interactions with negatively charged phospholipids (DOPG, DOPI, DOPS). Interestingly, the toxic mutant (M8) clearly induces perturbations of the negatively charged phospholipid monolayers, leading to a massive surface aggregation, whereas the nontoxic (WT) exhibits a slight effect on the membrane models. This study allows concluding that the toxicity of the M8 mutant could be due to its high propensity to interact with membranes.
Collapse
Affiliation(s)
- Ha Phuong Ta
- Chimie et Biologie des Membranes et Nano-objets, Université de Bordeaux-CNRS, 2 rue Robert Escarpit, 33607 Pessac, France
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Thewissen BG, Celus I, Brijs K, Delcour JA. Foaming properties of wheat gliadin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:1370-1375. [PMID: 21261252 DOI: 10.1021/jf103473d] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We studied gliadin solubility, surface tension and foam behavior, and the presence of different gliadin types in gliadin aqueous solutions and foams as a function of pH. Gliadin has excellent foaming properties only at neutral and alkaline pH. Its solubility is minimal near neutral pH, while almost complete at acidic and alkaline pH. Surface tensions of gliadin solutions are minimal around neutral pH, higher at alkaline pH, and highest at acidic pH, which corresponds well with their respective foaming properties. Foams at acidic and alkaline pH values are enriched in γ-gliadin, while foams at pH 8.0 have a similar distribution of α- and γ-gliadins. Thus, γ-gliadin predominantly contributes to the foaming properties of gliadin. The poor foaming properties of gliadin at pH 2.0 improve in the presence of 0.25 and 1.0% NaCl. It follows that the presence of positively charged amino acid residues hinders the formation of stable foam at acidic pH.
Collapse
Affiliation(s)
- Bert G Thewissen
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), Katholieke Universiteit Leuven , Kasteelpark Arenberg 20, B-3001 Leuven, Belgium
| | | | | | | |
Collapse
|
43
|
Nasir MN, Thawani A, Kouzayha A, Besson F. Interactions of the natural antimicrobial mycosubtilin with phospholipid membrane models. Colloids Surf B Biointerfaces 2010; 78:17-23. [PMID: 20207113 DOI: 10.1016/j.colsurfb.2010.01.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 01/28/2010] [Accepted: 01/29/2010] [Indexed: 11/26/2022]
Abstract
Among the secondary metabolite lipopeptides produced by Bacillus subtilis, mycosubtilin is characterized by its strong antifungal activities. Even though its structure and its cellular target, the cytoplasmic membrane, have been determined, the molecular mechanisms of the biological activity of mycosubtilin have not been completely elucidated. In this work, the interactions between mycosubtilin and cytoplasmic membranes were modelled by using biomimetic systems such as Langmuir monolayers at the air-water interface and lipid multilamellar vesicles. The interactions of mycosubtilin with these biomimetic systems were examined, for the first time, by using specific techniques such as polarization modulation infrared reflection absorption spectroscopy, Brewster angle microscopy and high-resolution magic angle spinning NMR. Our findings indicate that mycosubtilin alone, at the air-water interface, forms a monolayer film and keeps its turn conformation. In the presence of DMPC, mycosubtilin binds to phospholipid monolayers, in a surface pressure-dependent manner. This binding results in the appearance of condensed domains which can be due to the formation of mycosubtilin clusters and/or to the lipopeptide aggregation with some phospholipid molecules and/or the formation of liquid-condensed domains of DMPC. Furthermore, in multilamellar vesicles, the mycosubtilin-DMPC interactions take place at the level of the aliphatic chains of the phospholipid because the phase transition temperature of DMPC decreased in the presence of mycosubtilin.
Collapse
|
44
|
Banc A, Desbat B, Renard D, Popineau Y, Mangavel C, Navailles L. Exploring the interactions of gliadins with model membranes: effect of confined geometry and interfaces. Biopolymers 2009; 91:610-22. [PMID: 19301297 DOI: 10.1002/bip.21188] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Mechanisms leading to the assembly of wheat storage proteins into proteins bodies within the endoplasmic reticulum (ER) of endosperm cells are unresolved today. In this work, physical chemistry parameters which could be involved in these processes were explored. To model the confined environment of proteins within the ER, the dynamic behavior of gamma-gliadins inserted inside lyotropic lamellar phases was studied using FRAP experiments. The evolution of the diffusion coefficient as a function of the lamellar periodicity enabled to propose the hypothesis of an interaction between gamma-gliadins and membranes. This interaction was further studied with the help of phospholipid Langmuir monolayers. gamma- and omega-gliadins were injected under DMPC and DMPG monolayers and the two-dimensional (2D) systems were studied by Brewster angle microscopy (BAM), polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS), and surface tension measurements. Results showed that both gliadins adsorbed under phospholipid monolayers, considered as biological membrane models, and formed micrometer-sized domains at equilibrium. However, their thicknesses, probed by reflectance measurements, were different: omega-gliadins aggregates displayed a constant thickness, consistent with a monolayer, while the thickness of gamma-gliadins aggregates increased with the quantity of protein injected. These different behaviors could find some explanations in the difference of aminoacid sequence distribution: an alternate repeated - unrepeated domain within gamma-gliadin sequence, while one unique repeated domain was present within omega-gliadin sequence. All these findings enabled to propose a model of gliadins self-assembly via a membrane interface and to highlight the predominant role of wheat prolamin repeated domain in the membrane interaction. In the biological context, these results would mean that the repeated domain could be considered as an anchor for the interaction with the ER membrane and a nucleus point for the formation and growth of protein bodies within endosperm cells. (c) 2009 Wiley Periodicals, Inc. Biopolymers 91: 610-622, 2009.This article was originally published online as an accepted preprint. The "Published Online" date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com.
Collapse
Affiliation(s)
- Amélie Banc
- Université Bordeaux-1 CNRS, Centre de Recherche Paul-Pascal, Pessac, France
| | | | | | | | | | | |
Collapse
|
45
|
Kouzayha A, Nasir MN, Buchet R, Wattraint O, Sarazin C, Besson F. Conformational and Interfacial Analyses of K3A18K3 and Alamethicin in Model Membranes. J Phys Chem B 2009; 113:7012-9. [DOI: 10.1021/jp810539b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Achraf Kouzayha
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| | - Mehmet N. Nasir
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| | - René Buchet
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| | - Olivier Wattraint
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| | - Catherine Sarazin
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| | - Françoise Besson
- Université de Lyon, Université Lyon 1, INSA de Lyon, and ICBMS CNRS UMR 5246, Villeurbanne, F-69622, France, CPE Lyon, Villeurbanne, F-69616, France, and Unité de Génie Enzymatique et Cellulaire, UMR 6022 du CNRS—Université de Picardie Jules Verne, Amiens, France
| |
Collapse
|