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Eronina TB, Mikhaylova VV, Chebotareva NA, Kleymenov SY, Pivovarova AV, Kurganov BI. Combined action of chemical chaperones on stability, aggregation and oligomeric state of muscle glycogen phosphorylase b. Int J Biol Macromol 2022; 203:406-416. [PMID: 35066023 DOI: 10.1016/j.ijbiomac.2022.01.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 01/19/2023]
Abstract
Chemical chaperones are a class of small molecules, which enhance protein stability, folding, inhibit protein aggregation, and are used for long-term storage of therapeutic proteins. The combined action of chemical chaperones trehalose, betaine and lysine on stability, aggregation and oligomeric state of muscle glycogen phosphorylase b (Phb) has been studied. Dynamic light scattering data indicate that the affinity of trehalose to Phb increased in the presence of betaine or lysine at both stages (stage of nucleation and aggregate growth) of enzyme aggregation at 48 °C, in contrast, the affinity of betaine to the enzyme in the presence of lysine remained practically unchanged. According to differential scanning calorimetry and analytical ultracentrifugation data, the mixture of trehalose and betaine stabilized Phb stronger than either of them in total. Moreover, the destabilizing effect of lysine on the enzyme was almost completely compensated by trehalose and only partially by betaine. The main protective effect of the mixtures of osmolytes and lysine is associated with their influence on the dissociation/denaturation stage, which is the rate-limiting one of Phb aggregation. Thus, a pair of chaperones affects the stability, oligomeric state, and aggregation of Phb differently than individual chaperones.
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Affiliation(s)
- Tatiana B Eronina
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia.
| | - Valeriya V Mikhaylova
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Natalia A Chebotareva
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Sergey Y Kleymenov
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia; Koltsov's Institute of Developmental Biology, Russian Academy of Sciences, Vavilova 26, Moscow 119991, Russia
| | - Anastasia V Pivovarova
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Boris I Kurganov
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
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The mechanism of thermal aggregation of glutamate dehydrogenase. The effect of chemical chaperones. Biochimie 2022; 195:27-38. [PMID: 35041856 DOI: 10.1016/j.biochi.2022.01.004] [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: 08/24/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/20/2022]
Abstract
Chemical chaperones are low-molecular compounds counteracting protein aggregation. Understanding of the mechanism of their effects is key to their potential use in biotechnology. The aggregation of bovine liver glutamate dehydrogenase (GDH) was studied at 40 °C and 50 °C using dynamic light scattering, analytical ultracentrifugation, size-exclusion chromatography and differential scanning calorimetry. At 40 °C the GDH aggregation proceeds through the slow stages of hexamer dissociation and formation of small oligomeric aggregates. At 50 °C these stages are transient. The rate-limiting stage of the overall aggregation process is unfolding of the protein molecule; the order of aggregation with respect to protein, n = 1. The test system based on GDH aggregation at 50 °C was used to quantify the anti-aggregation activity of chemical chaperones by comparing their half-saturation concentrations [L]0.5. Arginine ethyl ester had the highest anti-aggregation activity, with [L]0.5 = 4 ± 1 mM. For other additives, [L]0.5 was 22 ± 1 mM (arginine), 18 ± 1 mM (argininamide) and 95 ± 12 mM (proline). Arginine at concentrations up to 300 mM, argininamide at concentrations higher than 300 mM and arginine ethyl ester at concentrations higher than 500 mM enhance aggregate-aggregate sticking. These results explain the mechanism of heat-induced GDH aggregation and its peculiarities at different temperatures or in the presence of chemical chaperones.
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Chebotareva NA, Eronina TB, Roman SG, Mikhaylova VV, Kleymenov SY, Kurganov BI. Kinetic regime of Ca 2+ and Mg 2+-induced aggregation of phosphorylase kinase at 40 °C. Int J Biol Macromol 2019; 138:181-187. [PMID: 31279057 DOI: 10.1016/j.ijbiomac.2019.06.240] [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: 05/23/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 10/26/2022]
Abstract
Many functions of phosphorylase kinase (PhK) are regulated by Ca2+ and Mg2+ ions. Ca2+ and Mg2+ ions stimulate activity of PhK, induce the changes in the tertiary and quaternary structure of the hexadecameric enzyme molecule, provoke association/aggregation of PhK molecules, enhance PhK binding to glycogen. To establish the kinetic regime of Ca2+ and Mg2+-induced aggregation of PhK from rabbit skeletal muscles at 40 °C, in the present work the kinetics of aggregation was studied at various protein concentrations using the dynamic light scattering. The proposed mechanism of aggregation involves the stage of unfolding of the protein molecule with retention of the integrity of its oligomeric structure, the nucleation stage and stages of the growth of protein aggregates. The initial rate of the aggregation process at the stage of aggregate growth depends linearly on the protein concentration. This means that the order of aggregation with respect to the protein is equal to unity and the aggregation rate is limited by the rate of protein unfolding. The rate constant of the first order characterizing the stage of protein unfolding was found to be equal to 0.071 min-1 (40 mM Hepes, pH 6.8, 100 mM NaCl, 0.1 mM Ca2+, 10 mM Mg2+).
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Affiliation(s)
- Natalia A Chebotareva
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Tatiana B Eronina
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Svetlana G Roman
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Valeriya V Mikhaylova
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Sergey Yu Kleymenov
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia; Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - Boris I Kurganov
- Laboratory of Structural Biochemistry of Proteins, Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia.
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Eronina TB, Mikhaylova VV, Chebotareva NA, Borzova VA, Yudin IK, Kurganov BI. Mechanism of aggregation of UV-irradiated glycogen phosphorylase b at a low temperature in the presence of crowders and trimethylamine N-oxide. Biophys Chem 2018; 232:12-21. [DOI: 10.1016/j.bpc.2017.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/25/2017] [Accepted: 10/09/2017] [Indexed: 12/22/2022]
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Kurganov BI. Quantification of anti-aggregation activity of chaperones. Int J Biol Macromol 2017; 100:104-117. [DOI: 10.1016/j.ijbiomac.2016.07.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 07/18/2016] [Accepted: 07/21/2016] [Indexed: 12/11/2022]
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Chebotareva NA, Roman SG, Kurganov BI. Dissociative mechanism for irreversible thermal denaturation of oligomeric proteins. Biophys Rev 2016; 8:397-407. [PMID: 28510015 PMCID: PMC5418479 DOI: 10.1007/s12551-016-0220-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/13/2016] [Indexed: 01/09/2023] Open
Abstract
Protein stability is a fundamental characteristic essential for understanding conformational transformations of the proteins in the cell. When using protein preparations in biotechnology and biomedicine, the problem of protein stability is of great importance. The kinetics of denaturation of oligomeric proteins may have characteristic properties determined by the quaternary structure. The kinetic schemes of denaturation can include the multiple stages of conformational transitions in the protein oligomer and stages of reversible dissociation of the oligomer. In this case, the shape of the kinetic curve of denaturation or the shape of the melting curve registered by differential scanning calorimetry can vary with varying the protein concentration. The experimental data illustrating dissociative mechanism for irreversible thermal denaturation of oligomeric proteins have been summarized in the present review. The use of test systems based on thermal aggregation of oligomeric proteins for screening of agents possessing anti-aggregation activity is discussed.
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Affiliation(s)
- Natalia A Chebotareva
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow, 119071, Russia.
| | - Svetlana G Roman
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow, 119071, Russia
| | - Boris I Kurganov
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow, 119071, Russia
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Fonin AV, Uversky VN, Kuznetsova IM, Turoverov KK. Protein folding and stability in the presence of osmolytes. Biophysics (Nagoya-shi) 2016. [DOI: 10.1134/s0006350916020056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Roman SG, Chebotareva NA, Kurganov BI. Anti-aggregation activity of small heat shock proteins under crowded conditions. Int J Biol Macromol 2016; 100:97-103. [PMID: 27234495 DOI: 10.1016/j.ijbiomac.2016.05.080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/23/2016] [Accepted: 05/22/2016] [Indexed: 10/21/2022]
Abstract
It is becoming evident that small heat shock proteins (sHsps) are important players of protein homeostasis system. Their ability to bind misfolded proteins may play a crucial role in preventing protein aggregation in cells. The remarkable structural plasticity of sHsps is considered to underlie the mechanism of their activity. However, all our knowledge of the anti-aggregation functioning of sHsps is based on data obtained in vitro in media greatly different from the cellular highly crowded milieu. The present review highlights available data on the effect of crowding on the anti-aggregation activity of sHsps. There is some evidence that crowding affects conformation and dynamics of sHsps oligomers as well as their anti-aggregation properties. Crowding stimulates association of sHsp-client protein complexes into large-sized aggregates thus diminishing the apparent anti-aggregation activity of sHsps. Nevertheless, it is also shown that complexes between suboligomers (dissociated forms) of sHsps and client proteins may be stabilized and exist for longer period of time under crowded conditions. Moreover, crowding may retard the initial stages of aggregation which correspond to the formation of sHsp-containing nuclei and their clusters. Thus, dissociation of sHsps into suboligomers appears to be an important feature for the anti-aggregation activity of sHsps in crowded media.
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Affiliation(s)
- Svetlana G Roman
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia.
| | - Natalia A Chebotareva
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
| | - Boris I Kurganov
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
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Eronina TB, Mikhaylova VV, Chebotareva NA, Makeeva VF, Kurganov BI. Checking for reversibility of aggregation of UV-irradiated glycogen phosphorylase b under crowding conditions. Int J Biol Macromol 2016; 86:829-39. [DOI: 10.1016/j.ijbiomac.2016.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 02/02/2016] [Accepted: 02/02/2016] [Indexed: 12/14/2022]
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Ferreira LA, Povarova OI, Stepanenko OV, Sulatskaya AI, Madeira PP, Kuznetsova IM, Turoverov KK, Uversky VN, Zaslavsky BY. Effects of low urea concentrations on protein-water interactions. J Biomol Struct Dyn 2016; 35:207-218. [DOI: 10.1080/07391102.2015.1135823] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Luisa A. Ferreira
- Cleveland Diagnostics, 3615 Superior Ave., Suite 4407B, Cleveland, Ohio 44114, USA
| | - Olga I. Povarova
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Olga V. Stepanenko
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Anna I. Sulatskaya
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Pedro P. Madeira
- Laboratory of Separation and Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering of the University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal
| | - Irina M. Kuznetsova
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Konstantin K. Turoverov
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
- Department of Biophysics, St. Petersburg State Polytechnic University, St. Petersburg 195251, Russia
| | - Vladimir N. Uversky
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
- Department of Molecular Medicine and Byrd Alzheimer’s Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Boris Y. Zaslavsky
- Cleveland Diagnostics, 3615 Superior Ave., Suite 4407B, Cleveland, Ohio 44114, USA
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Stepanenko OV, Povarova OI, Sulatskaya AI, Ferreira LA, Zaslavsky BY, Kuznetsova IM, Turoverov KK, Uversky VN. Protein unfolding in crowded milieu: what crowding can do to a protein undergoing unfolding? J Biomol Struct Dyn 2016; 34:2155-70. [PMID: 26474212 DOI: 10.1080/07391102.2015.1109554] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The natural environment of a protein inside a cell is characterized by the almost complete lack of unoccupied space, limited amount of free water, and the tightly packed crowd of various biological macromolecules, such as proteins, nucleic acids, polysaccharides, and complexes thereof. This extremely crowded natural milieu is poorly mimicked by slightly salted aqueous solutions containing low concentrations of a protein of interest. The accepted practice is to model crowded environments by adding high concentrations of various polymers that serve as model "crowding agents" to the solution of a protein of interest. Although studies performed under these model conditions revealed that macromolecular crowding might have noticeable influence on various aspects related to the protein structure, function, folding, conformational stability, and aggregation propensity, the complete picture describing conformational behavior of a protein under these conditions is missing as of yet. Furthermore, there is an accepted belief that the conformational stability of globular proteins increases in the presence crowding agents due to the excluded volume effects. The goal of this study was to conduct a systematic analysis of the effect of high concentrations of PEG-8000 and Dextran-70 on the unfolding behavior of eleven globular proteins belonging to different structural classes.
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Affiliation(s)
- Olga V Stepanenko
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia
| | - Olga I Povarova
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia
| | - Anna I Sulatskaya
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia
| | - Luisa A Ferreira
- b Cleveland Diagnostics , 3615 Superior Ave., Suite 4407B, Cleveland , OH 44114 , USA
| | - Boris Y Zaslavsky
- b Cleveland Diagnostics , 3615 Superior Ave., Suite 4407B, Cleveland , OH 44114 , USA
| | - Irina M Kuznetsova
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia
| | - Konstantin K Turoverov
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia.,c Department of Biophysics , Peter the Great St. Petersburg Polytechnic University , St. Petersburg , 195251 , Russia
| | - Vladimir N Uversky
- a Laboratory of Structural Dynamics, Stability and Folding of Proteins , Institute of Cytology, Russian Academy of Sciences , St. Petersburg , Russia.,d Department of Molecular Medicine and Byrd Alzheimer's Research Institute, Morsani College of Medicine , University of South Florida , Tampa , FL 33612 , USA
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12
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Dual effect of arginine on aggregation of phosphorylase kinase. Int J Biol Macromol 2014; 68:225-32. [DOI: 10.1016/j.ijbiomac.2014.04.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 04/24/2014] [Accepted: 04/29/2014] [Indexed: 01/20/2023]
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Roman SG, Chebotareva NA, Kurganov BI. Concentration dependence of chaperone-like activities of α-crystallin, αB-crystallin and proline. Int J Biol Macromol 2012; 50:1341-5. [DOI: 10.1016/j.ijbiomac.2012.03.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 03/16/2012] [Accepted: 03/22/2012] [Indexed: 01/03/2023]
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Ito L, Shiraki K, Makino M, Hasegawa K, Kumasaka T. Glycine amide shielding on the aromatic surfaces of lysozyme: Implication for suppression of protein aggregation. FEBS Lett 2011; 585:555-60. [DOI: 10.1016/j.febslet.2011.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 12/24/2010] [Accepted: 01/03/2011] [Indexed: 11/26/2022]
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Wang W, Nema S, Teagarden D. Protein aggregation—Pathways and influencing factors. Int J Pharm 2010; 390:89-99. [DOI: 10.1016/j.ijpharm.2010.02.025] [Citation(s) in RCA: 503] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 01/08/2010] [Accepted: 02/17/2010] [Indexed: 11/25/2022]
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16
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Wei H, Fan Y, Gao YQ. Effects of Urea, Tetramethyl Urea, and Trimethylamine N-Oxide on Aqueous Solution Structure and Solvation of Protein Backbones: A Molecular Dynamics Simulation Study. J Phys Chem B 2009; 114:557-68. [DOI: 10.1021/jp9084926] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Haiyan Wei
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842
| | - Yubo Fan
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842
| | - Yi Qin Gao
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842
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Chebotareva NA, Meremyanin AV, Makeeva VF, Eronina TB, Kurganov BI. Glycogen phosphorylase b and phosphorylase kinase binding to glycogen under molecular crowding conditions. Inhibitory effect of FAD. BIOCHEMISTRY (MOSCOW) 2009; 74:562-8. [PMID: 19538131 DOI: 10.1134/s0006297909050125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dynamic light scattering was used to study the interaction of phosphorylase kinase (PhK) and glycogen phosphorylase b (Phb) from rabbit skeletal muscle with glycogen under molecular crowding conditions arising from the presence of 1 M trimethylamine N-oxide and at physiological ionic strength. The mean value of hydrodynamic radius of the initial glycogen particles was 52 nm. Crowding stimulated Phb and PhK combined binding on glycogen particles. Two-stage character of PhK binding to glycogen particles containing adsorbed Phb was found in the presence of the crowding agent. At the initial stage, limited size particles with hydrodynamic radius of approximately 220 nm are formed, whereas the second stage is accompanied by linear growth of hydrodynamic radius. Flavin adenine dinucleotide (FAD) selectively inhibited PhK binding at the second stage. The data indicate that in the first stage Phb is involved in PhK binding by glycogen particles containing adsorbed Phb, whereas PhK binding in the second stage does not involve Phb.
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Affiliation(s)
- N A Chebotareva
- Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia.
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Matsuoka T, Hamada H, Matsumoto K, Shiraki K. Indispensable structure of solution additives to prevent inactivation of lysozyme for heating and refolding. Biotechnol Prog 2009; 25:1515-24. [DOI: 10.1002/btpr.245] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Eronina TB, Chebotareva NA, Bazhina SG, Makeeva VF, Kleymenov SY, Kurganov BI. Effect of proline on thermal inactivation, denaturation and aggregation of glycogen phosphorylase b from rabbit skeletal muscle. Biophys Chem 2009; 141:66-74. [DOI: 10.1016/j.bpc.2008.12.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 12/22/2008] [Accepted: 12/22/2008] [Indexed: 11/25/2022]
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20
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Meremyanin AV, Eronina TB, Chebotareva NA, Kurganov BI. Kinetics of thermal aggregation of glycogen phosphorylase b from rabbit skeletal muscle: mechanism of protective action of alpha-crystallin. Biopolymers 2008; 89:124-34. [PMID: 17941008 DOI: 10.1002/bip.20872] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The kinetics of thermal aggregation of glycogen phosphorylase b (Phb) from rabbit skeletal muscle have been studied by dynamic light scattering (0.08M Hepes, pH 6.8, containing 0.1M NaCl; 48 degrees C). The hydrodynamic radius of the start aggregates determined from the initial linear parts of the dependences of the hydrodynamic radius (R(h)) on time was found to be 16.7 +/- 1.0 nm. At rather high values of time, the R(h) value for the protein aggregates becomes proportional to t(1/1.8) = t(0.56) suggesting that the aggregation process proceeds in the regime of diffusion-limited cluster-cluster aggregation. In the presence of alpha-crystallin, a protein possessing the chaperone-like activity, the process of protein aggregation switches to the regime of reaction-limited cluster-cluster aggregation as indicated by the exponential dependence of the R(h) value on time. It was shown that the addition of alpha-crystallin raises the rate of thermal inactivation of Phb. These data in combination with the results of the study of interaction of Phb with alpha-crystallin by analytical ultracentrifugation suggest that alpha-crystallin interacts with the intermediates of unfolding of the Phb molecule.
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Affiliation(s)
- Alexey V Meremyanin
- A.N. Bakh Institute of Biochemistry, Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
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Chebotareva NA. Effect of molecular crowding on the enzymes of glycogenolysis. BIOCHEMISTRY (MOSCOW) 2007; 72:1478-90. [DOI: 10.1134/s0006297907130056] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Meremyanin AV, Eronina TB, Chebotareva NA, Kleimenov SY, Yudin IK, Muranov KO, Ostrovsky MA, Kurganov BI. Effect of alpha-crystallin on thermal aggregation of glycogen phosphorylase b from rabbit skeletal muscle. BIOCHEMISTRY (MOSCOW) 2007; 72:518-28. [PMID: 17573706 DOI: 10.1134/s0006297907050082] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Thermal aggregation of rabbit skeletal muscle glycogen phosphorylase b (Phb) has been investigated using dynamic light scattering under conditions of a constant rate of temperature increase (1 K/min). The linear behavior of the dependence of the hydrodynamic radius on temperature for Phb aggregation is consistent with the idea that thermal aggregation of proteins proceeds in the kinetic regime wherein the rate of aggregation is limited by diffusion of the interacting particles (the regime of "diffusion-limited cluster-cluster aggregation"). In the presence of alpha-crystallin, a protein exhibiting chaperone-like activity, the dependence of the hydrodynamic radius on temperature follows the exponential law; this suggests that the aggregation process proceeds in the kinetic regime where the sticking probability for colliding particles becomes lower than unity (the regime of "reaction-limited cluster-cluster aggregation"). Based on analysis of the ratio between the light scattering intensity and the hydrodynamic radius of Phb aggregates, it has been concluded that the addition of alpha-crystallin results in formation of smaller size starting aggregates. The data on differential scanning calorimetry indicate that alpha-crystallin interacts with the intermediates of the unfolding process of the Phb molecule. The proposed scheme of thermal denaturation and aggregation of Phb includes the stage of reversible dissociation of dimers of Phb into monomers, the stage of the formation of the starting aggregates from the denatured monomers of Phb, and the stage of the sticking of the starting aggregates and higher order aggregates. Dissociation of Phb dimer into monomers at elevated temperatures has been confirmed by analytical ultracentrifugation.
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Affiliation(s)
- A V Meremyanin
- Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow 119071, Russia.
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Bagger HL, Øgendal LH, Westh P. Solute effects on the irreversible aggregation of serum albumin. Biophys Chem 2007; 130:17-25. [PMID: 17689001 DOI: 10.1016/j.bpc.2007.06.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2007] [Revised: 06/28/2007] [Accepted: 06/28/2007] [Indexed: 11/18/2022]
Abstract
Thermal stress on bovine serum albumin (BSA) promotes protein aggregation through the formation of intermolecular beta-sheets. We have used light scattering and chromatography to study effects of (<1 M) Na(2)SO(4), NaSCN, sucrose, sorbitol and urea on the rate of the thermal aggregation. Both salts were strong inhibitors of BSA aggregation and they reduced both the size and number (concentration) of aggregate particles compared to non-ionic solutes (or pure buffer). Hence, the salts appear to suppress both nucleation- and growth rate. The non-electrolyte additives reduced the initial aggregation rate (compared to pure buffer), but did not significantly limit the extent of aggregation in samples quenched after 27 min. heat exposure (40-50% aggregation in all samples). The non-electrolytes did, however, modify the aggregation process as they consistently brought about smaller but more concentrated aggregates than pure buffer. The results are discussed along the lines of linkage- and transition state theories. In this framework, the rate of the aggregation process is governed by the equilibrium between a thermally denatured state (D) and the transition state D( not equal). Thus, the effect of a solute relies on its preferential interactions with respectively D and D( not equal). The current results do not show any correlation between the solutes' preferential interactions with native BSA and their effect on the rate of aggregation. This suggests that non-specific, "Hofmeister-type" interactions, which scale with the solvent accessible surface area, are of minor importance. Rather, salt induced suppression of aggregation is suggested to depend on the modulation of specific electrostatic forces in the D( not equal) state.
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Affiliation(s)
- Heidi L Bagger
- Roskilde University, Department of Science, Models and Systems, Universitetsvej 1, DK-4000 Roskilde, Denmark
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