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Zhou S, Zhou Y, Zhong W, Su Z, Qin Z. Involvement of protein L-isoaspartyl methyltransferase in the physiopathology of neurodegenerative diseases: Possible substrates associated with synaptic function. Neurochem Int 2023; 170:105606. [PMID: 37657764 DOI: 10.1016/j.neuint.2023.105606] [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: 04/11/2023] [Revised: 08/11/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
Synaptic dysfunction is a typical pathophysiologic change in neurodegenerative diseases (NDs) such as Alzheimer's disease (AD), Parkinson's disease (PD), Hintington's disease (HD) and amyotrophic lateral sclerosis (ALS), which involves protein post-translational modifications (PTMs) including L-isoaspartate (L-isoAsp) formed by isomerization of aspartate or deamidation of asparagine. The formation of L-isoAsp could be repaired by protein L-isoaspartyl methyltransferase (PIMT). Some synaptic proteins have been identified as PIMT potential substrates and play an essential role in ensuring synaptic function. In this review, we discuss the role of certain synaptic proteins as PIMT substrates in neurodegenerative disease, thus providing therapeutic synapse-centered targets for the treatment of NDs.
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Affiliation(s)
- Sirui Zhou
- Department of Anatomy, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Yancheng Zhou
- Department of Anatomy, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Wanyu Zhong
- Department of Anatomy, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Zhonghao Su
- Department of Febrile Disease, School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Zhenxia Qin
- Department of Anatomy, School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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2
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Tjia-Fleck S, Readnour BM, Ayinuola YA, Castellino FJ. High-Resolution Single-Particle Cryo-EM Hydrated Structure of Streptococcus pyogenes Enolase Offers Insights into Its Function as a Plasminogen Receptor. Biochemistry 2023; 62:735-746. [PMID: 36701429 DOI: 10.1021/acs.biochem.2c00637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cellular plasminogen (Pg) receptors (PgRs) are utilized to recruit Pg; stimulate its activation to the serine protease, plasmin (Pm); and sterically protect the surface Pm from inactivation by host inhibitors. One such PgR is the moonlighting enzyme, enolase, some of which leaves the cytoplasm and resides at the cell surface to potentially function as a PgR. Since microbes employ conscription of host Pg by PgRs as one virulence mechanism, we explored the structural basis of the ability of Streptococcus pyogenes enolase (Sen) to function in this manner. Employing single-particle cryo-electron microscopy (cryo-EM), recombinant Sen from S. pyogenes was modeled at 2.6 Å as a stable symmetrical doughnut-shaped homooctamer with point group 422 (D4) symmetry, with a monomeric subunit molecular weight of ∼49 kDa. Binding sites for hPg were reported in other studies to include an internal K252,255 and the COOH-terminal K434,435 residues of Sen. However, in native Sen, the latter are buried within the minor interfaces of the octamer and do not function as a Pg-binding epitope. Whereas Sen and hPg do not interact in solution, when Sen is bound to a surface, hPg interacts with Sen independently of K252,255,434,435. PgRs devoid of COOH-terminal lysine utilize lysine isosteres comprising a basic residue, "i", and an anionic residue at "i + 3" around one turn of an α-helix. We highlight a number of surface-exposed potential hPg-binding lysine isosteres and further conclude that while the octameric structure of Sen is critical for hPg binding, disruption of this octamer without dissociation exposes hPg-binding epitopes.
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Affiliation(s)
- Sheiny Tjia-Fleck
- W.M. Keck Center for Transgene Research, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Bradley M Readnour
- W.M. Keck Center for Transgene Research, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yetunde A Ayinuola
- W.M. Keck Center for Transgene Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Francis J Castellino
- W.M. Keck Center for Transgene Research, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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3
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Esmail GA, Al-Dhabi NA, AlDawood B, Somily AM. Shotgun whole genome sequencing of drug-resistance Streptococcus anginosus strain 47S1 isolated from a patient with pharyngitis in Saudi Arabia. J Infect Public Health 2021; 14:1740-1749. [PMID: 34836797 DOI: 10.1016/j.jiph.2021.11.010] [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: 10/03/2021] [Revised: 11/03/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Streptococcus anginosus is an emergence opportunistic pathogen that colonize the human upper respiratory tract (URT), S. anginosus alongside with S. intermedius and S. constellatus, members of S. anginosus group, are implicated in several human infections. However, our understanding this bacterium to the genotype level with determining the genes associated with pathogenicity and antimicrobial resistance (AMR) is scarce. S. anginosus 47S1 strain was isolated from sore throat infection, the whole genome was characterized and the virulence & AMR genes contributing in pathogenicity were investigated. METHODOLOGY The whole genome of 47S1 was sequenced by Illumina sequencing technology. Strain 47S1 genome was de novo assembled with different strategies and annotated via PGAP, PROKKA and RAST pipelines. Identifying the CRISPR-Cass system and prophages sequences was performed using CRISPRloci and PhiSpy tools respectively. Prediction the virulence genes were performed with the VFDB database. AMR genes were detected in silico using NCBI AMRFinderPlus pipeline and CARD database and compared with in vitro AST findings. RESULTS β-hemolytic strain 47S1 was identified with conventional microbiology techniques and confirmed by the sequences of 16S rRNA gene. Genome of 47S1 comprised of 1981512 bp. Type I-C CRISPR-Cas system and 4 prophages were detected among the genome of 47S1. Several virulence genes were predicted, most of these genes are found in other pathogenic streptococci, mainly lmb, pavA, htrA/degP, eno, sagA, psaA and cpsI which play a significant role in colonizing, invading host tissues and evade form immune system. In silico AMR findings showed that 47S1 gnome harbors (tetA, tetB &tet32), (aac(6')-I, aadK &aph(3')-IVa), fusC, and PmrA genes that mediated-resistance to tetracyclines, aminoglycosides, fusidic acid, and fluoroquinolone respectively which corresponds with in vitro AST obtained results. In conclusion, WGS is a key approach to predict the virulence and AMR genes, results obtained in this study may contribute for a better understanding of the opportunistic S. anginosus pathogenicity.
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Affiliation(s)
- Galal Ali Esmail
- Department of Botany and Microbiology, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Badr AlDawood
- Department of Emergency Medicine, College of Medicine, King Saud University, King Saud University Medical City, Riyadh 11461, Saudi Arabia
| | - Ali Mohammed Somily
- Department of Pathology and Laboratory Medicine/Microbiology, College of Medicine, King Saud University, King Saud University Medical City, Riyadh 11461, Saudi Arabia.
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Deshmukh SS, Kornblatt MJ, Kornblatt JA. The influence of truncating the carboxy-terminal amino acid residues of streptococcal enolase on its ability to interact with canine plasminogen. PLoS One 2019; 14:e0206338. [PMID: 30653526 PMCID: PMC6336276 DOI: 10.1371/journal.pone.0206338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/16/2018] [Indexed: 11/23/2022] Open
Abstract
The native octameric structure of streptococcal enolase from Streptococcus pyogenes increasingly dissociates as amino acid residues are removed one by one from the carboxy-terminus. These truncations gradually convert native octameric enolase into monomers and oligomers. In this work, we investigated how these truncations influence the interaction between Streptococcal enolase and canine plasminogen. We used dual polarization interferometry (DPI), localized surface plasmon resonance (LSPR), and sedimentation velocity analytical ultracentrifugation (AUC) to study the interaction. The DPI was our first technique, was performed on all the truncations and used one exclusive kind of chip. The LSRP was used to show that the DPI results were not dependent on the type of chip used. The AUC was required to show that our surface results were not the result of selecting a minority population in any given sample; the majority of the protein was responsible for the binding phenomenon we observed. By comparing results from these techniques we identified one detail that is essential for streptococcal enolase to bind plasminogen: In our hands the individual monomers bind plasminogen; dimers, trimers, tetramers may or may not bind, the fully intact, native, octamer does not bind plasminogen. We also evaluated the contribution to the equilibrium constant made by surface binding as well as in solution. On a surface, the association coefficient is about twice that in solution. The difference is probably not significant. Finally, the fully octameric form of the protein that does not contain a hexa-his N-terminal peptide does not bind to a silicon oxynitride surface, does not bind to an Au-nanoparticle surface, does not bind to a surface coated with Ni-NTA nor does it bind to a surface coated with DPgn. The likelihood is great that the enolase species on the surface of Streptococcus pyogenes is an x-mer of the native octamer.
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Affiliation(s)
| | - M. Judith Kornblatt
- Department of Chemistry and Biochemistry, Concordia University, Montreal Qc, Canada
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Deshmukh SS, Protheroe C, Ivanescu MA, Lag S, Kálmán L. Low potential manganese ions as efficient electron donors in native anoxygenic bacteria. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018; 1859:227-233. [PMID: 29355486 DOI: 10.1016/j.bbabio.2018.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/20/2017] [Accepted: 01/16/2018] [Indexed: 12/14/2022]
Abstract
Systematic control over molecular driving forces is essential for understanding the natural electron transfer processes as well as for improving the efficiency of the artificial mimics of energy converting enzymes. Oxygen producing photosynthesis uniquely employs manganese ions as rapid electron donors. Introducing this attribute to anoxygenic photosynthesis may identify evolutionary intermediates and provide insights to the energetics of biological water oxidation. This work presents effective environmental methods that substantially and simultaneously tune the redox potentials of manganese ions and the cofactors of a photosynthetic enzyme from native anoxygenic bacteria without the necessity of genetic modification or synthesis. A spontaneous coordination with bis-tris propane lowered the redox potential of the manganese (II) to manganese (III) transition to an unusually low value (~400 mV) at pH 9.4 and allowed its binding to the bacterial reaction center. Binding to a novel buried binding site elevated the redox potential of the primary electron donor, a dimer of bacteriochlorophylls, by up to 92 mV also at pH 9.4 and facilitated the electron transfer that is able to compete with the wasteful charge recombination. These events impaired the function of the natural electron donor and made BTP-coordinated manganese a viable model for an evolutionary alternative.
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Affiliation(s)
| | | | | | - Sarah Lag
- Department of Physics, Concordia University, Montreal, QC, Canada
| | - László Kálmán
- Department of Physics, Concordia University, Montreal, QC, Canada.
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Adamus G. Impact of Autoantibodies against Glycolytic Enzymes on Pathogenicity of Autoimmune Retinopathy and Other Autoimmune Disorders. Front Immunol 2017; 8:505. [PMID: 28503176 PMCID: PMC5408022 DOI: 10.3389/fimmu.2017.00505] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/12/2017] [Indexed: 12/20/2022] Open
Abstract
Autoantibodies (AAbs) against glycolytic enzymes: aldolase, α-enolase, glyceraldehyde-3-phosphate dehydrogenase, and pyruvate kinase are prevalent in sera of patients with blinding retinal diseases, such as paraneoplastic [cancer-associated retinopathy (CAR)] and non-paraneoplastic autoimmune retinopathies, as well as in many other autoimmune diseases. CAR is a degenerative disease of the retina characterized by sudden vision loss in patients with cancer and serum anti-retinal AAbs. In this review, we discuss the widespread serum presence of anti-glycolytic enzyme AAbs and their significance in autoimmune diseases. There are multiple mechanisms responsible for antibody generation, including the innate anti-microbial response, anti-tumor response, or autoimmune response against released self-antigens from damaged, inflamed tissue. AAbs against enolase, GADPH, and aldolase exist in a single patient in elevated titers, suggesting their participation in pathogenicity. The lack of restriction of AAbs to one disease may be related to an increased expression of glycolytic enzymes in various metabolically active tissues that triggers an autoimmune response and generation of AAbs with the same specificity in several chronic and autoimmune conditions. In CAR, the importance of serum anti-glycolytic enzyme AAbs had been previously dismissed, but the retina may be without pathological consequence until a failure of the blood–retinal barrier function, which would then allow pathogenic AAbs access to their retinal targets, ultimately leading to damaging effects.
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Affiliation(s)
- Grazyna Adamus
- School of Medicine, Casey Eye Institute, Oregon Health and Science University, Portland, OR, USA
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Cork AJ, Ericsson DJ, Law RHP, Casey LW, Valkov E, Bertozzi C, Stamp A, Jovcevski B, Aquilina JA, Whisstock JC, Walker MJ, Kobe B. Stability of the octameric structure affects plasminogen-binding capacity of streptococcal enolase. PLoS One 2015; 10:e0121764. [PMID: 25807546 PMCID: PMC4373793 DOI: 10.1371/journal.pone.0121764] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 02/11/2015] [Indexed: 11/19/2022] Open
Abstract
Group A Streptococcus (GAS) is a human pathogen that has the potential to cause invasive disease by binding and activating human plasmin(ogen). Streptococcal surface enolase (SEN) is an octameric α-enolase that is localized at the GAS cell surface. In addition to its glycolytic role inside the cell, SEN functions as a receptor for plasmin(ogen) on the bacterial surface, but the understanding of the molecular basis of plasmin(ogen) binding is limited. In this study, we determined the crystal and solution structures of GAS SEN and characterized the increased plasminogen binding by two SEN mutants. The plasminogen binding ability of SENK312A and SENK362A is ~2- and ~3.4-fold greater than for the wild-type protein. A combination of thermal stability assays, native mass spectrometry and X-ray crystallography approaches shows that increased plasminogen binding ability correlates with decreased stability of the octamer. We propose that decreased stability of the octameric structure facilitates the access of plasmin(ogen) to its binding sites, leading to more efficient plasmin(ogen) binding and activation.
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Affiliation(s)
- Amanda J. Cork
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
- Australian Infectious Disease Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Daniel J. Ericsson
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
- Australian Infectious Disease Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ruby H. P. Law
- Department of Biochemistry and Molecular Biology and the ARC Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Melbourne, VIC, 3800, Australia
| | - Lachlan W. Casey
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Eugene Valkov
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Carlo Bertozzi
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Anna Stamp
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Blagojce Jovcevski
- School of Biological Sciences and Illawarra Health and Medical Research, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - J. Andrew Aquilina
- School of Biological Sciences and Illawarra Health and Medical Research, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - James C. Whisstock
- Department of Biochemistry and Molecular Biology and the ARC Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Melbourne, VIC, 3800, Australia
| | - Mark J. Walker
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
- Australian Infectious Disease Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
- * E-mail: (BK); (MJW)
| | - Bostjan Kobe
- School of Chemistry and Molecular Biosciences and Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, 4072, Australia
- Australian Infectious Disease Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
- * E-mail: (BK); (MJW)
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Escorihuela J, González-Martínez MÁ, López-Paz JL, Puchades R, Maquieira Á, Gimenez-Romero D. Dual-Polarization Interferometry: A Novel Technique To Light up the Nanomolecular World. Chem Rev 2014; 115:265-94. [DOI: 10.1021/cr5002063] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jorge Escorihuela
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Miguel Ángel González-Martínez
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - José Luis López-Paz
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Rosa Puchades
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Ángel Maquieira
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - David Gimenez-Romero
- Physical
Chemistry Department, Faculty of Chemistry, Universitat de València, Avenida Dr. Moliner 50, 46100 Burjassot, València, Spain
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Raghunathan K, Harris PT, Spurbeck RR, Arvidson CG, Arvidson DN. Crystal structure of an efficacious gonococcal adherence inhibitor: An enolase fromLactobacillus gasseri. FEBS Lett 2014; 588:2212-6. [DOI: 10.1016/j.febslet.2014.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/09/2014] [Accepted: 05/09/2014] [Indexed: 12/01/2022]
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