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Zhang Y, Fu W, Liu D, Chen X, Zhou P. Deciphering the thick filaments assembly behavior of myosin as affected by enzymatic deamidation. Food Chem 2024; 433:137385. [PMID: 37696090 DOI: 10.1016/j.foodchem.2023.137385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023]
Abstract
Enzymatic deamidation is a promising approach in enhancing the solubility of myofibrillar proteins (MPs) in water paving the way of tailor manufacturing muscle protein-based beverages. This work aimed to clarify the solubilization mechanism by deciphering myosin thick filaments assembly as affected by protein-glutaminase deamidation. With the extension of deamidation, filamentous structures in MPs shortened continuously. Dynamic monitoring of quartz crystal microbalance-dissipated showed the adsorption capacity of the deaminated MPs was reduced from 3.66 ng/cm2 to 2.03 ng/cm2, indicating that the ability to assemble myosin thick filaments was significantly weakened. By simulating the surface charge, it was found that deamidation may neutralize the positive charged clusters distanced at 14-29 nm from rod C-terminus. Since this region confers myosin electrostatic property to initiate staggered dimerization, deamidation in this region, which severely affected the electrostatic balance between residues, impaired ordered thick filament growing and elongating, thus promoting the solubilization of MPs in water.
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Affiliation(s)
- Yanyun Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenyan Fu
- Wuxi Biologics Co., Ltd, Wuxi 214092, China
| | - Dongmei Liu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xing Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Peng Zhou
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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Li M, Coppo L, Jena BP, Larsson L. The optimized quantum dot mediated thermometry reveals isoform specific differences in efficiency of myosin extracted from muscle mini bundles. Arch Biochem Biophys 2022; 722:109212. [DOI: 10.1016/j.abb.2022.109212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 03/13/2022] [Accepted: 04/01/2022] [Indexed: 11/26/2022]
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Filamentous myosin in low-ionic strength meat protein processing media: Assembly mechanism, impact on protein functionality, and inhibition strategies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Li Y, Feng T, Sun J, Guo L, Wang B, Huang M, Xu X, Yu J, Ho H. Physicochemical and microstructural attributes of marinated chicken breast influenced by breathing ultrasonic tumbling. ULTRASONICS SONOCHEMISTRY 2020; 64:105022. [PMID: 32106068 DOI: 10.1016/j.ultsonch.2020.105022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/09/2020] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Currently, the conventional atmospheric pressure-based and vacuum-based tumbling processes have a limited improvement on the chicken characteristic attributes during the marination process. In view of this, through a breathing (pressure change) tumbling strategy, ultrasonication (40 kHz, 140 W) was applied to improve tenderness, taste, and microstructure of chicken by a redesigned tumbler. The results showed that the tumbling with the breathing action and ultrasonication significantly enhanced the marinating absorptivity, tenderness and taste, and accelerated the degradation of myosin light chain. Free peptides (from 1465.9 ± 34.6 to 4725.7 ± 43.2 μg/mL) and amino acids (from 1.503 ± 0.096 to 2.593 ± 0.109 mg/mL) rose evidently for the control and the breathing tumbling treatment assisted by ultrasound respectively. Raman analysis revealed that strength of disulfide bonds declined from 0.731 ± 0.006 to 0.607 ± 0.011 a.u. and the conversion from α-helix (decreased by 67.23%) into β-fold (increased by 1573%) conformation occurred. Low field NMR analysis indicated that the content of immobilized water increased from 77385 ± 14 to 137011 ± 106 au·ms by integral calculus. Scanning and transmission electron microscopies clearly showed a prospective rupture of myofibers, myofibrils, and lysosomes. Overall, as a potential alternative, the breathing ultrasonic tumbling means improved the marinating efficiency and characteristics of marinated chicken breast.
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Affiliation(s)
- Yan Li
- College of Food Science & Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Ting Feng
- College of Food Science & Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Jingxin Sun
- College of Food Science & Engineering, Qingdao Agricultural University, Qingdao 266109, China.
| | - Liping Guo
- College of Food Science & Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Baowei Wang
- College of Food Science & Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Ming Huang
- National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China; Nanjing Huangjiaoshou Food Sci. & Tech. Co., Ltd., Nanjing 211226, China
| | - Xinglian Xu
- College of Food Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiying Yu
- Hainan (Tanniu) Wenchang Chicken Co., Ltd., Haikou 571133, China
| | - Harvey Ho
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
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Kuhn ER, Naik AR, Lewis BE, Kokotovich KM, Li M, Stemmler TL, Larsson L, Jena BP. Nanothermometry Reveals Calcium-Induced Remodeling of Myosin. NANO LETTERS 2018; 18:7021-7029. [PMID: 30346792 PMCID: PMC6818504 DOI: 10.1021/acs.nanolett.8b02989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Ions greatly influence protein structure-function and are critical to health and disease. A 10, 000-fold higher calcium in the sarcoplasmic reticulum (SR) of muscle suggests elevated calcium levels near active calcium channels at the SR membrane and the impact of localized high calcium on the structure-function of the motor protein myosin. In the current study, combined quantum dot (QD)-based nanothermometry and circular dichroism (CD) spectroscopy enabled detection of previously unknown enthalpy changes and associated structural remodeling of myosin, impacting its function following exposure to elevated calcium. Cadmium telluride QDs adhere to myosin, function as thermal sensors, and reveal that exposure of myosin to calcium is exothermic, resulting in lowering of enthalpy, a decrease in alpha helical content measured using CD spectroscopy, and the consequent increase in motor efficiency. Isolated muscle fibers subjected to elevated levels of calcium further demonstrate fiber lengthening and decreased motility of actin filaments on myosin-functionalized substrates. Our results, in addition to providing new insights into our understanding of muscle structure-function, establish a novel approach to understand the enthalpy of protein-ion interactions and the accompanying structural changes that may occur within the protein molecule.
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Affiliation(s)
- Eric R. Kuhn
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
| | - Akshata R. Naik
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
| | - Brianne E. Lewis
- Department of Pharmaceutical Science, College of Pharmacy, Wayne State University, Detroit, Michigan 48201, United States
| | - Keith M. Kokotovich
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
| | - Meishan Li
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Timothy L. Stemmler
- Department of Pharmaceutical Science, College of Pharmacy, Wayne State University, Detroit, Michigan 48201, United States
| | - Lars Larsson
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Bhanu P. Jena
- Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
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