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Zhao M, Konno K, Zhang N, Liu Y, Zhou D, Yu C, Dong X. Characteristic thermal denaturation profile of myosin in the longitudinal retractor muscle of sea cucumber (Stichoupus japonicas). Food Chem 2021; 357:129606. [PMID: 33864997 DOI: 10.1016/j.foodchem.2021.129606] [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: 06/27/2020] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
This study elucidated thermal denaturation profile of myosin in sea cucumber longitudinal muscle. Sea cucumber myosin structure was different from fish at its head/tail junction which could not be cleaved by EDTA. However, sea cucumber myosin in salt-dissolved form could be cleaved into heavy meromyosin (HMM) and light meromyosin (LMM) segments. Although sea cucumbers lived in cold water, its myosin stability was comparable to tropical tilapia, more stable than rainbow trout (a cold water fish). Upon heating, the sea cucumber myosin lost its salt-solubility rapidly, even before losing its ATPase activity. The quick loss of salt-solubility suggested a quick denaturation at light meromyosin region as revealed by chymotryptic digestion. These results suggested that sea cucumber myosin is consisted of very stable head region and unstable tail region, which is important for choosing proper heating conditions for sea cucumber processing.
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Affiliation(s)
- Meiyu Zhao
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Kunihiko Konno
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Nana Zhang
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yu Liu
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Dayong Zhou
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Chenxu Yu
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
| | - Xiuping Dong
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China.
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Matusovsky OS, Shevchenko UV, Matusovskaya GG, Sobieszek A, Dobrzhanskaya AV, Shelud’ko NS. Catch muscle myorod modulates ATPase activity of Myosin in a phosphorylation-dependent way. PLoS One 2015; 10:e0125379. [PMID: 25915932 PMCID: PMC4410989 DOI: 10.1371/journal.pone.0125379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/23/2015] [Indexed: 11/18/2022] Open
Abstract
Myorod is expressed exclusively in molluscan catch muscle and localizes on the surface of thick filaments together with twitchin and myosin. Myorod is an alternatively spliced product of the myosin heavy-chain gene that contains the C-terminal rod part of myosin and a unique N-terminal domain. The unique domain is a target for phosphorylation by gizzard smooth myosin light chain kinase (smMLCK) and, perhaps, molluscan twitchin, which contains a MLCK-like domain. To elucidate the role of myorod and its phosphorylation in the catch muscle, the effect of chromatographically purified myorod on the actin-activated Mg2+-ATPase activity of myosin was studied. We found that phosphorylation at the N-terminus of myorod potentiated the actin-activated Mg2+-ATPase activity of mussel and rabbit myosins. This potentiation occurred only if myorod was phosphorylated and introduced into the ATPase assay as a co-filament with myosin. We suggest that myorod could be related to the catch state, a function specific to molluscan muscle.
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Affiliation(s)
- Oleg S. Matusovsky
- A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- * E-mail: (OM); (NS)
| | - Ulyana V. Shevchenko
- A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Galina G. Matusovskaya
- A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Apolinary Sobieszek
- Institute for Biomedical Aging Research, Austrian Academy of Sciences, Innsbruck, Austria
| | - Anna V. Dobrzhanskaya
- A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Nikolay S. Shelud’ko
- A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
- * E-mail: (OM); (NS)
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Ovissipour M, Rasco B, Tang J, Sablani SS. Kinetics of quality changes in whole blue mussel (Mytilus edulis) during pasteurization. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.04.029] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Molluscan catch muscle myorod and its N-terminal peptide bind to F-actin and myosin in a phosphorylation-dependent manner. Arch Biochem Biophys 2011; 509:59-65. [DOI: 10.1016/j.abb.2011.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 02/12/2011] [Accepted: 02/12/2011] [Indexed: 12/18/2022]
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A force-activated kinase in a catch smooth muscle. J Muscle Res Cell Motil 2011; 31:349-58. [PMID: 21286791 DOI: 10.1007/s10974-011-9240-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Accepted: 01/18/2011] [Indexed: 10/18/2022]
Abstract
Permeabilized anterior byssus retractor muscles (ABRM) from Mytilus edulis were used as a simple system to test whether there is a stretch dependent activation of a kinase as has been postulated for titin and the mini-titin twitchin. The ABRM is a smooth muscle that shows catch, a condition of high force maintenance and resistance to stretch following stimulation when the intracellular Ca(++) concentration has diminished to sub-maximum levels. In the catch state twitchin is unphosphorylated, and the muscle maintains force without myosin crossbridge cycling through what is likely a twitchin mediated tether between thick and thin filaments. In catch, a small change in length results in a large change in force. The phosphorylation state of an added peptide, a good substrate for molluscan twitchin kinase, with the sequence KKRAARATSNVFA was used as a measure of kinase activation. We find that there is about a two-fold increase in phosphorylation of the added peptide with a 10% stretch of the ABRM in catch. The increased phosphorylation is due to activation of a kinase rather than to an inhibition of a phosphatase. The extent of phosphorylation of the peptide is decreased when twitchin is phosphorylated and catch force is not present. However, there is also a large increase in peptide phosphorylation when the muscle is activated in pCa 5, and the catch state does not exist. The force-sensitive kinase activity is decreased by ML-9 and ML-7 which are inhibitors of twitchin kinase, but not by the Rho kinase inhibitor Y-27632. There is no detectable phosphorylation of myosin light chains, but the phosphorylation of twitchin increases by a small, but significant extent with stretch. It is possible that twitchin senses force output resulting in a force-sensitive twitchin kinase activity that results in autophosphorylation of twitchin on site(s) other than those responsible for relaxation of catch.
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Matusovsky OS, Dyachuk VA, Kiselev KV, Matusovskaya GG, Shelud’ko NS. Expression of several domains of twitchin and myorod in the ontogeny of the mussel Mytilus trossulus. Biophysics (Nagoya-shi) 2010. [DOI: 10.1134/s0006350910050015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Azizi-Semrad U, Grillari J, Grubeck-Loebenstein B, Pietschmann P. Biogerontology in Austria. Biogerontology 2010; 12:3-10. [PMID: 20195756 DOI: 10.1007/s10522-010-9267-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Accepted: 02/17/2010] [Indexed: 10/19/2022]
Abstract
In Austria significant progress in the field of biogerontology has been achieved in the past years. Biogerontological research is performed in academic and extramural institutions. The Institute for Biomedical Aging Research of the Austrian Academy of Science at Innsbruck is the largest institution dealing with biogerontology in Austria. Moreover, gerontologic research is performed at the Universities of Salzburg and Graz, the Medical Universities of Vienna, Innsbruck and Graz, the University of Veterinary Medicine (Vienna) and the University of Natural Resources and Applied Life Sciences (Vienna). This article describes the work of selected research groups involved in biogerontology in a geographic arrangement.
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Affiliation(s)
- Ursula Azizi-Semrad
- Department of Pathophysiology, Medical University of Vienna, Vienna, Austria
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