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Molchanov V, Yegorov A, Molchanov M, Timchenko A, Novikov V, Novojilov N, Timchenko M. Novel Antimicrobial Peptide from the Hepatopancreas of the Red King Crab. Int J Mol Sci 2023; 24:15607. [PMID: 37958589 PMCID: PMC10649287 DOI: 10.3390/ijms242115607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Crustaceans have successfully adapted to survive in their natural habitat, rich in microorganisms, due to the presence of antimicrobial peptides (AMPs) in their organism. They achieve this adaptation despite lacking the highly specific adaptive immune system found in vertebrates. One valuable source of AMPs is the hepatopancreas, a waste product from crab fishery and its processing. Applying zymographic and spectrophotometric techniques, we discovered a small peptide (approximately 5 kDa) within a low molecular weight protein fraction extracted from the acetone powder of the red king crab hepatopancreas. This peptide hydrolyzes both M. lysodeikticus cell wall and M. lysodeikticus cell wall polysaccharide, while showing no activity against gelatin. The found peptide may be of interest for application in medicine, biotechnology, and the food industry, for example as a bio-preservative.
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Affiliation(s)
- Vladislav Molchanov
- Institute of Theoretical and Experimental Biophysics RAS, Pushchino 142290, Russia; (V.M.); (A.Y.); (M.M.)
- National Research Nuclear University (NRNU) MEPhI Obninsk Institute for Nuclear Power Engineering (OINPE), Obninsk 249040, Russia
| | - Alexander Yegorov
- Institute of Theoretical and Experimental Biophysics RAS, Pushchino 142290, Russia; (V.M.); (A.Y.); (M.M.)
| | - Maxim Molchanov
- Institute of Theoretical and Experimental Biophysics RAS, Pushchino 142290, Russia; (V.M.); (A.Y.); (M.M.)
| | | | - Vitaly Novikov
- Polar Branch of Russian Federal Research Institute of Fisheries and Oceanography, Murmansk 183038, Russia;
| | - Nikolay Novojilov
- M. M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia;
| | - Maria Timchenko
- Institute of Theoretical and Experimental Biophysics RAS, Pushchino 142290, Russia; (V.M.); (A.Y.); (M.M.)
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Ignatieva N, Zakharkina O, Kurkov A, Molchanov M, Mazayshvili K. Analysis of the vein wall destruction under endovenous laser ablation in an ex vivo model. J COSMET LASER THER 2022; 23:163-169. [DOI: 10.1080/14764172.2021.1990961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Natalia Ignatieva
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Olga Zakharkina
- Institute of Photon Technologies, Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences, Moscow, Russia
| | - Alexander Kurkov
- Institute for Regenerative Medicine, I. M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Maxim Molchanov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, Russia
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Timchenko M, Molchanov V, Molchanov M, Timchenko A, Sogorin E. Investigation of lipolytic activity of the red king crab hepatopancreas homogenate by NMR spectroscopy. PeerJ 2022; 10:e12742. [PMID: 35036105 PMCID: PMC8734460 DOI: 10.7717/peerj.12742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 12/13/2021] [Indexed: 01/07/2023] Open
Abstract
The digestive gland of craboids (hepatopancreas) is rich in a huge number of various enzymes (collagenases, nucleases, hyaluronidases, proteases), which are well studied at the moment. However, little is known about crustacean lipases. In this work, using 1H NMR spectroscopy, it was found that the hepatopancreas homogenate of the red king crab Paralithodes camtschaticus demonstrates high lipolytic activity against triacetin in a wide pH range and shows moderate activity against the caprylic/capric triglyceride emulsion. Under the action of the hepatopancreas homogenate, triacylglycerols are converted into 1,2-diacylglycerol, and then into 2-monoacylglycerol and 1-monoacylglycerol. The 1-monoacylglycerol predominates in the reaction products. The use of NMR spectroscopy makes it possible to quickly detect hydrolysis products and evaluate the reaction direction.
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Affiliation(s)
- Maria Timchenko
- Laboratory of NMR biosystems, Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Vladislav Molchanov
- Medical Physics Department, Dubna State University, Branch Protvino, Protvino, Russia
| | - Maxim Molchanov
- Laboratory of NMR biosystems, Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Alexander Timchenko
- Group of Experimental Research and Engineering Oligomeric Structures, Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - Evgeny Sogorin
- Institute for Biological Instrumentation, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, Pushchino, Russia
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Sliadovskii D, Ponomareva T, Molchanov M, Pozdnyakova-Filatova I, Timchenko M, Marchenkov V, Gusev O, Sogorin E. β-elimination of hyaluronate by red king crab hyaluronidase. Sci Rep 2021; 11:22600. [PMID: 34799594 PMCID: PMC8604925 DOI: 10.1038/s41598-021-01890-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/03/2021] [Indexed: 11/09/2022] Open
Abstract
Crustacean hyaluronidases are poorly understood both in terms of their enzymatic properties and in terms of their structural features. In this work, we show that the hepatopancreas homogenate of the red king crab has a hyaluronidase activity that is an order of magnitude higher than its commercial counterpart. Zymography revealed that the molecular weight of a protein with hyalorunidase activity is 40-50 kDa. Analysis of the hepatopancreas transcriptome and results of cloning and sequencing of cDNA revealed a hyaluronidase sequence with an expected molecular weight of 42.5 kDa. Further analysis showed that hyaluronat enzymatic cleavage follows the [Formula: see text]-elimination mechanism, which is well known for bacterial hyaluronidases. The results of ion-exchange chromatography showed that the final product of hyaluronate degradation is unsaturated tetrasaccharide. Thus, we identified a new hyaluronidase of higher eukaryotes, which is not integrated into the modern classification of hyaluronidases.
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Affiliation(s)
- Dmitrii Sliadovskii
- Federal Research Center "Pushchino Scientific Center for Biological Research of the RAS", Pushchino, Russia, 142290
| | - Tatyana Ponomareva
- Federal Research Center "Pushchino Scientific Center for Biological Research of the RAS", Pushchino, Russia, 142290
| | - Maxim Molchanov
- Institute of Theoretical and Experimental Biophysics of the RAS, Pushchino, Russia, 142290
| | - Irina Pozdnyakova-Filatova
- Federal Research Center "Pushchino Scientific Center for Biological Research of the RAS", G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino, Russia, 142290
| | - Maria Timchenko
- Federal Research Center "Pushchino Scientific Center for Biological Research of the RAS", Pushchino, Russia, 142290
| | | | - Oleg Gusev
- Regulatory Genomics Research Center, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia, 420012
- Graduate School of Medicine, Juntendo University, Tokyo , 113-8421, Japan
| | - Evgeny Sogorin
- Federal Research Center "Pushchino Scientific Center for Biological Research of the RAS", Pushchino, Russia, 142290.
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Azev V, Chulin A, Molchanov M, Prokhorov D, Mikoulinskaia G, Uversky VN, Kutyshenko V. Chemical synthesis of peptidoglycan mimetic-disaccharide-tetrapeptide conjugate and its hydrolysis by bacteriophage T5, RB43 and RB49 L-alanyl-D-glutamate peptidases. PeerJ 2021; 9:e11480. [PMID: 34055493 PMCID: PMC8140593 DOI: 10.7717/peerj.11480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 04/27/2021] [Indexed: 11/20/2022] Open
Abstract
Background Endolysins of a number of bacteriophages, including coliphages T5, RB43, and RB49, target the peptidoglycans of the bacterial cell wall. The backbone of these bacterial peptidoglycans consist of alternating N-acetylglucosamine and N-acetylmuramic acid residues that is further “reinforced” by the peptide subunits. Because of the mesh-like structure and insolubility of peptidoglycans, the processes of the peptidoglycan binding and hydrolysis by enzymes cannot be studied by spectral methods. To overcome these issues we synthesized and analyzed here one of the simplest water soluble peptidoglycan mimetics. Methods A compound has been synthesized that mimics the peptidoglycan fragment of the bacterial cell wall, N-acetylglucosaminyl-β(1-4)-N-acetylmuramoyl-l-alanyl-γ-d-glutamyl-l-alanyl-d-alanine. NMR was used to study the degradation of this peptidoglycan mimetic by lytic l-alanoyl-d-glutamate peptidases of colibacteriophages T5, RB43, and RB49 (EndoT5, EndoRB43, and EndoRB49, respectively). Results The resulting glycopeptide mimetic was shown to interact with the studied enzymes. Its hydrolysis occurred through the bond between l-Ala and d-Glu. This artificial substrate mimetic was hydrolyzed by enzymes at different rates, which decreased outside the pH optimum. The EndoT5 demonstrated the lowest hydrolysis rate, whereas the EndoRB49-driven hydrolysis was the fastest one, and EndoRB43 displayed an intermediate potency. These observations are consistent with the hypothesis that EndoRB49 is characterized by the lowest selectivity, and hence the potentially broader spectrum of the peptidoglycan types subjected to hydrolysis, which was put forward in the previous study. We also show that to hydrolyze this glycopeptide mimetic, enzymes approach the glycopeptide near the methyl groups of all three alanines.
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Affiliation(s)
- Viatcheslav Azev
- Branch of Shemyakin and Ovchinnikov's Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Alexey Chulin
- Branch of Shemyakin and Ovchinnikov's Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Maxim Molchanov
- Institute for Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Dmitry Prokhorov
- Institute for Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Galina Mikoulinskaia
- Branch of Shemyakin and Ovchinnikov's Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Vladimir N Uversky
- Laboratory of New Methods in Biology, Institute for Biological Instrumentation of the Russian Academy of Sciences, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", Pushchino, Moscow Region, Russia.,Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States
| | - Viktor Kutyshenko
- Institute for Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
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Ponomareva T, Sliadovskii D, Timchenko M, Molchanov M, Timchenko A, Sogorin E. The effect of hepatopancreas homogenate of the Red king crab on HA-based filler. PeerJ 2020; 8:e8579. [PMID: 32095375 PMCID: PMC7023832 DOI: 10.7717/peerj.8579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/16/2020] [Indexed: 11/20/2022] Open
Abstract
In this study, several methods were used to analyze the hydrolysis of hyaluronic acid (HA)-based cosmetic fillers by the hepatopancreas homogenate of the Red king crab. The results show that the homogenate and commercially available hyaluronidases have similar hydrolysis activities on the fillers. Atomic force microscopy images reveal that the HA fillers consist mainly of spherical-like particles, which are converted into filamentous structures as a result of hydrolysis by the Red king crab hepatopancreas homogenate. Turbidimetric analysis of the hydrolysis process shows that HA aggregation with acidic albumin exhibits a bell-shaped dependence on reaction time. Analysis of the hydrolysis process by nuclear magnetic resonance shows that HA degradation lasts several days. The maximum rate of the reaction is detected in the 1st h of incubation. The data confirm that the purified homogenate of the Red king crab hepatopancreas exerts hyaluronidase activity on HA-based cosmetic fillers; therefore, it may be considered as a potential therapeutic agent for treating filler complications.
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Affiliation(s)
- Tatyana Ponomareva
- Federal Research Center “Pushchino Scientific Center for Biological Research of the RAS”, Pushchino, Russia
| | - Dmitrii Sliadovskii
- Federal Research Center “Pushchino Scientific Center for Biological Research of the RAS”, Pushchino, Russia
| | - Maria Timchenko
- Federal Research Center “Pushchino Scientific Center for Biological Research of the RAS”, Pushchino, Russia
| | - Maxim Molchanov
- Institute of Theoretical and Experimental Biophysics of the RAS, Pushchino, Russia
| | | | - Evgeny Sogorin
- Federal Research Center “Pushchino Scientific Center for Biological Research of the RAS”, Pushchino, Russia
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Popova I, Malkov A, Ivanov AI, Samokhina E, Buldakova S, Gubkina O, Osypov A, Muhammadiev RS, Zilberter T, Molchanov M, Paskevich S, Zilberter M, Zilberter Y. Metabolic correction by pyruvate halts acquired epilepsy in multiple rodent models. Neurobiol Dis 2017; 106:244-254. [PMID: 28709994 DOI: 10.1016/j.nbd.2017.07.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/03/2017] [Accepted: 07/10/2017] [Indexed: 01/22/2023] Open
Abstract
Metabolic intervention strategy of epilepsy treatment has been gaining broader attention due to accumulated evidence that hypometabolism, manifested in humans as reduced brain glucose consumption, is a principal factor in acquired epilepsy. Therefore, targeting deficient energy metabolism may be an effective approach for treating epilepsy. To confront this pathology we utilized pyruvate, which besides being an anaplerotic mitochondrial fuel possesses a unique set of neuroprotective properties as it: (i) is a potent reactive oxygen species scavenger; (ii) abates overactivation of Poly [ADP-ribose] polymerase 1 (PARP-1); (iii) facilitates glutamate efflux from the brain; (iv) augments brain glycogen stores; (v) is anti-inflammatory; (vi) prevents neuronal hyperexcitability; and (vii) normalizes the cytosolic redox state. In vivo, chronic oral pyruvate administration completely abolished established epileptic phenotypes in three accepted and fundamentally different rodent acquired epilepsy models. Our study reports metabolic correction by pyruvate as a potentially highly effective treatment of acquired epilepsies.
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Affiliation(s)
- I Popova
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France; Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - A Malkov
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France; Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - A I Ivanov
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France
| | - E Samokhina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - S Buldakova
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France
| | - O Gubkina
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France
| | - A Osypov
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - R S Muhammadiev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | | | - M Molchanov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - S Paskevich
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - M Zilberter
- Neuronal Oscillations Lab, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Y Zilberter
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005 Marseille, France.
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Samokhina E, Popova I, Malkov A, Ivanov AI, Papadia D, Osypov A, Molchanov M, Paskevich S, Fisahn A, Zilberter M, Zilberter Y. Chronic inhibition of brain glycolysis initiates epileptogenesis. J Neurosci Res 2017; 95:2195-2206. [PMID: 28150440 DOI: 10.1002/jnr.24019] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/20/2016] [Accepted: 12/21/2016] [Indexed: 12/30/2022]
Abstract
Metabolic abnormalities found in epileptogenic tissue provide considerable evidence of brain hypometabolism, while major risk factors for acquired epilepsy all share brain hypometabolism as one common outcome, suggesting that a breakdown of brain energy homeostasis may actually precede epileptogenesis. However, a causal link between deficient brain energy metabolism and epilepsy initiation has not been yet established. To address this issue we developed an in vivo model of chronic energy hypometabolism by daily intracerebroventricular (i.c.v.) injection of the nonmetabolizable glucose analog 2-deoxy-D-glucose (2-DG) and also investigated acute effects of 2-DG on the cellular level. In hippocampal slices, acute glycolysis inhibition by 2-DG (by about 35%) led to contrasting effects on the network: a downregulation of excitatory synaptic transmission together with a depolarization of neuronal resting potential and a decreased drive of inhibitory transmission. Therefore, the potential acute effect of 2-DG on network excitability depends on the balance between these opposing pre- and postsynaptic changes. In vivo, we found that chronic 2-DG i.c.v. application (estimated transient inhibition of brain glycolysis under 14%) for a period of 4 weeks induced epileptiform activity in initially healthy male rats. Our results suggest that chronic inhibition of brain energy metabolism, characteristics of the well-established risk factors of acquired epilepsy, and specifically a reduction in glucose utilization (typically observed in epileptic patients) can initiate epileptogenesis. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Evgeniya Samokhina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Irina Popova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005, Marseille, France
| | - Anton Malkov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005, Marseille, France
| | - Anton I Ivanov
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005, Marseille, France
| | - Daniela Papadia
- Neuronal Oscillations Lab, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Osypov
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Maxim Molchanov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Svetlana Paskevich
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - André Fisahn
- Neuronal Oscillations Lab, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Misha Zilberter
- Neuronal Oscillations Lab, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Yuri Zilberter
- Aix Marseille Université, Inserm, INS UMR_S 1106, 13005, Marseille, France
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Abstract
Ferroactive models of ion channels in the theory of biological membranes are presented. The main equations are derived and their possible solutions are shown. The estimates of some experimentally measured parameters are given. Possible physical consequences of the suggested models are listed and the possibility of their experimental finding is discussed. The functioning of the biomembrane's ion channel is qualitatively described on the basis of the suggested ferroactive models. The main directions and prospects for development of the ferroactive approach to the theory of biological membranes and their structures are indicated.
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Affiliation(s)
- V S Bystrov
- Institute of Mathematical Problems of Biology, Pushchino Research Center, Russian Academy of Sciences, Moscow region
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