1
|
Guérin A, Sulaeman S, Coquet L, Ménard A, Barloy-Hubler F, Dé E, Tresse O. Membrane Proteocomplexome of Campylobacter jejuni Using 2-D Blue Native/SDS-PAGE Combined to Bioinformatics Analysis. Front Microbiol 2020; 11:530906. [PMID: 33329413 PMCID: PMC7717971 DOI: 10.3389/fmicb.2020.530906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 10/14/2020] [Indexed: 12/27/2022] Open
Abstract
Campylobacter is the leading cause of the human bacterial foodborne infections in the developed countries. The perception cues from biotic or abiotic environments by the bacteria are often related to bacterial surface and membrane proteins that mediate the cellular response for the adaptation of Campylobacter jejuni to the environment. These proteins function rarely as a unique entity, they are often organized in functional complexes. In C. jejuni, these complexes are not fully identified and some of them remain unknown. To identify putative functional multi-subunit entities at the membrane subproteome level of C. jejuni, a holistic non a priori method was addressed using two-dimensional blue native/Sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis (PAGE) in strain C. jejuni 81-176. Couples of acrylamide gradient/migration-time, membrane detergent concentration and hand-made strips were optimized to obtain reproducible extraction and separation of intact membrane protein complexes (MPCs). The MPCs were subsequently denatured using SDS-PAGE and each spot from each MPCs was identified by mass spectrometry. Altogether, 21 MPCs could be detected including multi homo-oligomeric and multi hetero-oligomeric complexes distributed in both inner and outer membranes. The function, the conservation and the regulation of the MPCs across C. jejuni strains were inspected by functional and genomic comparison analyses. In this study, relatedness between subunits of two efflux pumps, CmeABC and MacABputC was observed. In addition, a consensus sequence CosR-binding box in promoter regions of MacABputC was present in C. jejuni but not in Campylobacter coli. The MPCs identified in C. jejuni 81-176 membrane are involved in protein folding, molecule trafficking, oxidative phosphorylation, membrane structuration, peptidoglycan biosynthesis, motility and chemotaxis, stress signaling, efflux pumps and virulence.
Collapse
Affiliation(s)
| | | | - Laurent Coquet
- UMR 6270 Laboratoire Polymères Biopolymères Surfaces, UNIROUEN, INSA Rouen, CNRS, Normandie Université, Rouen, France
- UNIROUEN, Plateforme PISSARO, IRIB, Normandie Université, Mont-Saint-Aignan, France
| | - Armelle Ménard
- INSERM, UMR 1053 Bordeaux Research in Translational Oncology, BaRITOn, Bordeaux, France
| | - Frédérique Barloy-Hubler
- UMR 6290, CNRS, Institut de Génétique et Développement de Rennes, University of Rennes, Rennes, France
| | - Emmanuelle Dé
- UMR 6270 Laboratoire Polymères Biopolymères Surfaces, UNIROUEN, INSA Rouen, CNRS, Normandie Université, Rouen, France
| | | |
Collapse
|
2
|
Budhraja R, Karande S, Ding C, Ullrich MK, Wagner S, Reemtsma T, Adrian L. Characterization of membrane-bound metalloproteins in the anaerobic ammonium-oxidizing bacterium "Candidatus Kuenenia stuttgartiensis" strain CSTR1. Talanta 2020; 223:121711. [PMID: 33298257 DOI: 10.1016/j.talanta.2020.121711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 01/18/2023]
Abstract
Membrane-bound metalloproteins are the basis of biological energy conservation via respiratory processes, however, their biochemical characterization is difficult. Here, we followed a gel-based proteomics and metallomics approach to identify membrane-associated metalloproteins in the anaerobic ammonium-oxidizing "Candidatus Kuenenia stuttgartiensis" strain CSTR1. Membrane-associated protein complexes were separated by two dimensional Blue Native/SDS gel electrophoresis and subunits were identified by mass spectrometry; protein-bound metal ions were quantified from the gel by connecting either a desolvating nebulizer system or laser ablation to inductively coupled plasma triple quadrupole mass spectrometry (ICP-QqQ-MS). We identified most protein complexes predicted to be involved in anaerobic ammonium oxidation and carbon fixation. The ICP-QqQ-MS data showed the presence of Fe and Zn in a wide range of high molecular weight protein complexes (230-800 kDa). Mo was prominently found in gel slices with proteins of a size of 500-650 kDa, whereas Ni was only found using the desolvating nebulizer system in the protein range of 350-500 kDa. The detected protein complexes and their metal content were consistent with genome annotations. Gel-based metalloproteomics is a sensitive and reliable approach for the characterization of metalloproteins and could be used to characterize many multimeric metalloprotein complexes in biological systems.
Collapse
Affiliation(s)
- Rohit Budhraja
- Helmholtz Centre for Environmental Research - UFZ, Isotope Biogeochemistry, Leipzig, Germany; Chair of Geobiotechnology, Technische Universität Berlin, Berlin, Germany
| | - Shubhangi Karande
- Helmholtz Centre for Environmental Research - UFZ, Isotope Biogeochemistry, Leipzig, Germany
| | - Chang Ding
- Helmholtz Centre for Environmental Research - UFZ, Environmental Biotechnology, Leipzig, Germany
| | - Maria K Ullrich
- Helmholtz Centre for Environmental Research - UFZ, Analytical Chemistry, Leipzig, Germany
| | - Stephan Wagner
- Helmholtz Centre for Environmental Research - UFZ, Analytical Chemistry, Leipzig, Germany
| | - Thorsten Reemtsma
- Helmholtz Centre for Environmental Research - UFZ, Analytical Chemistry, Leipzig, Germany
| | - Lorenz Adrian
- Helmholtz Centre for Environmental Research - UFZ, Environmental Biotechnology, Leipzig, Germany; Chair of Geobiotechnology, Technische Universität Berlin, Berlin, Germany.
| |
Collapse
|
3
|
Yang JY, Peng B, Wang M, Zou XG, Yin YL, Deng ZY. Characteristics and emulsifying properties of two protein fractions derived from the emulsion formed during aqueous extraction of Camellia oil. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.08.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
4
|
Quantitative Assessment of the Effects of Reducing Agents on Biological Macromolecules and on the Possible Repair of Oxidative Damage. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5704016. [PMID: 30175134 PMCID: PMC6098912 DOI: 10.1155/2018/5704016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/19/2018] [Indexed: 11/25/2022]
Abstract
Objective To quantitatively assess the influence of reducing agents on biological macromolecules and on the possible repair of oxidative damage. Methods Samples (antibody, enzyme, DNA, and diluted serum) were treated with reducing agents (ammonium ferrous sulfate, ascorbic acid, potassium iodide, and sodium hyposulfite) in the experimental group and with NaCl in the control group. Enzyme-linked immunosorbent assay and quantitative PCR were used to determine the activity of antibody, enzyme, and DNA. Native gel electrophoresis (Native-PAGE) and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) were used to determine protein structure. Reducing agents that had no inhibitory effect on biological macromolecules were selected. Antibodies were treated with oxidants to caused oxidative damage and then treated with reducing agents, and the possible repair of oxidative damage was assessed. Results Certain concentrations of ammonium ferrous sulfate resulted in significant inhibition of antibody, enzyme, DNA, and diluted serum. Certain concentrations of ascorbic acid resulted in significant inhibition of antibody. Sodium hyposulfite and potassium iodide had no effect on antibody, enzyme, DNA, and diluted serum. The OD values in group A (in which HBsAb was treated by oxidation and then a reductant) were significantly higher than those in group B (HBsAb treated by oxidation). Conclusion Ammonium ferrous sulfate, ascorbic acid, sodium hyposulfite, and potassium iodide had different effects on antibody, enzyme, DNA, and diluted serum. The reduction in antibody activity due to an oxidant was partially repaired by a reductant.
Collapse
|
5
|
Luo X, Wu J, Jin Z, Yan LJ. Non-Gradient Blue Native Polyacrylamide Gel Electrophoresis. ACTA ACUST UNITED AC 2017; 87:19.29.1-19.29.12. [PMID: 28150881 DOI: 10.1002/cpps.21] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gradient blue native polyacrylamide gel electrophoresis (BN-PAGE) is a well established and widely used technique for activity analysis of high-molecular-weight proteins, protein complexes, and protein-protein interactions. Since its inception in the early 1990s, a variety of minor modifications have been made to this gradient gel analytical method. Here we provide a major modification of the method, which we call non-gradient BN-PAGE. The procedure, similar to that of non-gradient SDS-PAGE, is simple because there is no expensive gradient maker involved. The non-gradient BN-PAGE protocols presented herein provide guidelines on the analysis of mitochondrial protein complexes, in particular, dihydrolipoamide dehydrogenase (DLDH) and those in the electron transport chain. Protocols for the analysis of blood esterases or mitochondrial esterases are also presented. The non-gradient BN-PAGE method may be tailored for analysis of specific proteins according to their molecular weight regardless of whether the target proteins are hydrophobic or hydrophilic. © 2017 by John Wiley & Sons, Inc.
Collapse
Affiliation(s)
- Xiaoting Luo
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas.,Department of Biochemistry and Molecular Biology, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Jinzi Wu
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas
| | - Zhen Jin
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas
| | - Liang-Jun Yan
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas.,Corresponding author
| |
Collapse
|
6
|
Wöhlbrand L, Ruppersberg HS, Feenders C, Blasius B, Braun HP, Rabus R. Analysis of membrane-protein complexes of the marine sulfate reducer Desulfobacula toluolica Tol2 by 1D blue native-PAGE complexome profiling and 2D blue native-/SDS-PAGE. Proteomics 2016; 16:973-88. [PMID: 26792001 DOI: 10.1002/pmic.201500360] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/16/2015] [Accepted: 12/30/2015] [Indexed: 02/03/2023]
Abstract
Sulfate-reducing bacteria (SRB) obtain energy from cytoplasmic reduction of sulfate to sulfide involving APS-reductase (AprAB) and dissimilatory sulfite reductase (DsrAB). These enzymes are predicted to obtain electrons from membrane redox complexes, i.e. the quinone-interacting membrane-bound oxidoreductase (QmoABC) and DsrMKJOP complexes. In addition to these conserved complexes, the genomes of SRB encode a large number of other (predicted) membrane redox complexes, the function and actual formation of which is unknown. This study reports the establishment of 1D Blue Native-PAGE complexome profiling and 2D BN-/SDS-PAGE for analysis of the membrane protein complexome of the marine sulfate reducer Desulfobacula toluolica Tol2. Analysis of normalized score profiles of >800 proteins in combination with hierarchical clustering and identification of 2D BN-/SDS-PAGE separated spots demonstrated separation of membrane complexes in their native form, e.g. ATP synthase. In addition to the QmoABC and DsrMKJOP complexes, other complexes were detected that constitute the basic membrane complexome of D. toluolica Tol2, e.g. transport proteins (e.g. sodium/sulfate symporters) or redox complexes involved in Na(+) -based bioenergetics (RnfABCDEG). Notably, size estimation indicates dimer and quadruple formation of the DsrMKJOP complex in vivo. Furthermore, cluster analysis suggests interaction of this complex with a rhodanese-like protein (Tol2_C05230) possibly representing a periplasmic electron transfer partner for DsrMKJOP.
Collapse
Affiliation(s)
- Lars Wöhlbrand
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Hanna S Ruppersberg
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Christoph Feenders
- Mathematical Modelling, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Bernd Blasius
- Mathematical Modelling, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Hans-Peter Braun
- Plant Proteomics, Institute of Plant Genetics, Leibniz University Hannover, Hannover, Germany
| | - Ralf Rabus
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| |
Collapse
|
7
|
Kublik A, Deobald D, Hartwig S, Schiffmann CL, Andrades A, von Bergen M, Sawers RG, Adrian L. Identification of a multi-protein reductive dehalogenase complex inDehalococcoides mccartyistrain CBDB1 suggests a protein-dependent respiratory electron transport chain obviating quinone involvement. Environ Microbiol 2016; 18:3044-56. [DOI: 10.1111/1462-2920.13200] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/03/2015] [Accepted: 12/23/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Anja Kublik
- Department of Isotope Biogeochemistry; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
| | - Darja Deobald
- Department of Isotope Biogeochemistry; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
| | - Stefanie Hartwig
- Institute of Microbiology; Martin-Luther University Halle-Wittenberg; Kurt-Mothes-Str. 3 06120 Halle Germany
| | - Christian L. Schiffmann
- Department of Proteomics; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
| | - Adarelys Andrades
- Department of Isotope Biogeochemistry; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
| | - Martin von Bergen
- Department of Proteomics; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
- Department of Metabolomics; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
- Centre for Microbial Communities; University of Aalborg; Fredrik Bajers Vej 7H 9220 Aalborg East Denmark
| | - R. Gary Sawers
- Institute of Microbiology; Martin-Luther University Halle-Wittenberg; Kurt-Mothes-Str. 3 06120 Halle Germany
| | - Lorenz Adrian
- Department of Isotope Biogeochemistry; Helmholtz Centre for Environmental Research - UFZ; Permoserstraße 15 04318 Leipzig Germany
| |
Collapse
|
8
|
Auger C, Appanna ND, Alhasawi A, Appanna VD. Deciphering metabolic networks by blue native polyacrylamide gel electrophoresis: A functional proteomic exploration. EUPA OPEN PROTEOMICS 2015. [DOI: 10.1016/j.euprot.2015.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
9
|
Quantitative and Systems-Based Approaches for Deciphering Bacterial Membrane Interactome and Gene Function. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 883:135-54. [PMID: 26621466 DOI: 10.1007/978-3-319-23603-2_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
High-throughput genomic and proteomic methods provide a concise description of the molecular constituents of a cell, whereas systems biology strives to understand the way these components function as a whole. Recent developments, such as genome editing technologies and protein epitope-tagging coupled with high-sensitivity mass-spectrometry, allow systemic studies to be performed at an unprecedented scale. Available methods can be successfully applied to various goals, both expanding fundamental knowledge and solving applied problems. In this review, we discuss the present state and future of bacterial cell envelope interactomics, with a specific focus on host-pathogen interactions and drug target discovery. Both experimental and computational methods will be outlined together with examples of their practical implementation.
Collapse
|
10
|
Envelope protein complexes of Mycobacterium avium subsp. paratuberculosis and their antigenicity. Vet Microbiol 2014; 175:275-85. [PMID: 25500374 DOI: 10.1016/j.vetmic.2014.11.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/17/2014] [Accepted: 11/07/2014] [Indexed: 01/18/2023]
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of Johne's disease, a chronic enteric disease of ruminant animals. In the present study, blue native PAGE electrophoresis and 2D SDS-PAGE were used to separate MAP envelope protein complexes, followed by mass spectrometry (MS) to identify individual proteins within the complexes. Identity of individual proteins within complexes was further confirmed by MS upon excision of spots from 2D SDS-PAGE gels. Among the seven putative membrane complexes observed, major membrane protein (MAP2121c), a key MAP antigen involved in invasion of epithelial cells, was found to form a complex with cysteine desulfurase (MAP2120c). Other complexes found included those involved in energy metabolism (succinate dehydrogenase complex) as well as a complex formed by Cfp29, a characterized T cell antigen of Mycobacterium tuberculosis. To determine antigenicity of proteins, Western blot was performed on replicate 2D SDS-PAGE gels with sera from noninfected control cows (n=9) and naturally infected cows in the subclinical (n=10) and clinical (n=13) stages of infection. Clinical animals recognized MAP2121c in greater proportion than subclinical and control cows, whereas cysteine desulfurase recognition was not differentiated by infection status. To further characterize antigenicity, recombinant proteins were expressed for 10 of the proteins identified and evaluated in an interferon-gamma (IFN-γ) release assay as well as immunoblots. This study reveals the presence of protein complexes in the cell envelope of MAP, suggesting protein interactions in the envelope of this pathogen. Furthermore the identification of antigenic proteins with potential as diagnostic targets was characterized.
Collapse
|
11
|
Li F, Liang J, Wang W, Zhou X, Deng Z, Wang Z. Analysis of Streptomyces coelicolor membrane proteome using two-dimensional native/native and native/sodium dodecyl sulfate gel electrophoresis. Anal Biochem 2014; 465:148-55. [DOI: 10.1016/j.ab.2014.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 08/05/2014] [Accepted: 08/07/2014] [Indexed: 10/24/2022]
|
12
|
Salzano AM, Novi G, Arioli S, Corona S, Mora D, Scaloni A. Mono-dimensional blue native-PAGE and bi-dimensional blue native/urea-PAGE or/SDS-PAGE combined with nLC–ESI-LIT-MS/MS unveil membrane protein heteromeric and homomeric complexes in Streptococcus thermophilus. J Proteomics 2013; 94:240-61. [DOI: 10.1016/j.jprot.2013.09.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/04/2013] [Accepted: 09/14/2013] [Indexed: 02/06/2023]
|
13
|
Wöhlbrand L, Trautwein K, Rabus R. Proteomic tools for environmental microbiology-A roadmap from sample preparation to protein identification and quantification. Proteomics 2013; 13:2700-30. [DOI: 10.1002/pmic.201300175] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 06/07/2013] [Accepted: 06/28/2013] [Indexed: 02/03/2023]
Affiliation(s)
- Lars Wöhlbrand
- Institute for Chemistry and Biology of the Marine Environment (ICBM); Carl von Ossietzky University Oldenburg; Oldenburg Germany
| | - Kathleen Trautwein
- Institute for Chemistry and Biology of the Marine Environment (ICBM); Carl von Ossietzky University Oldenburg; Oldenburg Germany
| | - Ralf Rabus
- Institute for Chemistry and Biology of the Marine Environment (ICBM); Carl von Ossietzky University Oldenburg; Oldenburg Germany
| |
Collapse
|
14
|
Lasserre JP, Ménard A. Two-dimensional blue native/SDS gel electrophoresis of multiprotein complexes. Methods Mol Biol 2012; 869:317-37. [PMID: 22585498 DOI: 10.1007/978-1-61779-821-4_27] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The two-dimensional blue native/sodium dodecyl sulfate polyacrylamide gel electrophoresis (2D BN/SDS-PAGE) is a method of choice for the investigation of protein complexes. This highly resolvent separation method is unique in that it facilitates the identification of many protein complexes simultaneously. Because of its simplicity and suitability, the 2D BN/SDS-PAGE can be now applied to a wide range of organisms, including bacteria, viruses, yeasts, animals, and plants. Moreover, recent modifications have made it possible to apply this method to the study of whole protein complexes of an organism. Here, we propose protocols for the investigation of the whole complexome of bacteria as well as eukaryotic cells.
Collapse
Affiliation(s)
- Jean Paul Lasserre
- Laboratoire de Bactériologie, INSERM U853, Université Victor Segalen Bordeaux 2, Bordeaux Cedex, France
| | | |
Collapse
|
15
|
The leucine aminopeptidase of Staphylococcus aureus is secreted and contributes to biofilm formation. Int J Infect Dis 2012; 16:e375-81. [DOI: 10.1016/j.ijid.2012.01.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 01/10/2012] [Accepted: 01/18/2012] [Indexed: 01/22/2023] Open
|
16
|
Thangthaeng N, Sumien N, Forster MJ, Shah RA, Yan LJ. Nongradient blue native gel analysis of serum proteins and in-gel detection of serum esterase activities. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:386-94. [PMID: 21237726 PMCID: PMC3034814 DOI: 10.1016/j.jchromb.2010.12.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 12/22/2010] [Accepted: 12/23/2010] [Indexed: 12/21/2022]
Abstract
The objective of the present study was to analyze serum protein complexes and detect serum esterase activities using nongradient blue native polyacrylamide gel electrophoresis (BN-PAGE). For analysis of potential protein complexes, serum from rat was used. Results demonstrate that a total of 8 gel bands could be clearly distinguished after Coomassie blue staining, and serum albumin could be isolated nearly as a pure protein. Moreover, proteins in these bands were identified by electrospray mass spectrometry and low-energy collision induced dissociation (CID)-MS/MS peptide sequencing and the existence of serum dihydrolipoamide dehydrogenase (DLDH) was confirmed. For studies of in-gel detection of esterase activities, serum from rat, mouse, and human was used. In-gel staining of esterase activity was achieved by the use of either α-naphthylacetate or β-naphthylacetate in the presence of Fast blue BB salt. There were three bands exhibiting esterase activities in the serum of both rat and mouse. In contrast, there was only one band showing esterase activity staining in the human serum. When serum samples were treated with varying concentrations of urea, esterase activity staining was abolished for all the bands except the one containing esterase 1 (Es1) protein that is known to be a single polypeptide enzyme, indicating that majority of these esterases were protein complexes or multimeric proteins. We also identified the human serum esterase as butyrylcholinesterase following isolation and partial purification using ammonium sulfate fractioning and ion exchange column chromatographies. Where applicable, demonstrations of the gel-based method for measuring serum esterase activities under physiological or pathophysiological conditions were illustrated. Results of the present study demonstrate that nongradient BN-PAGE can serve as a feasible analytical tool for proteomic and enzymatic analysis of serum proteins.
Collapse
Affiliation(s)
- Nopporn Thangthaeng
- Department of Pharmacology and Neuroscience and Institute for Aging and Alzheimer’s Disease Research, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Nathalie Sumien
- Department of Pharmacology and Neuroscience and Institute for Aging and Alzheimer’s Disease Research, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Michael J. Forster
- Department of Pharmacology and Neuroscience and Institute for Aging and Alzheimer’s Disease Research, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Ruchir A. Shah
- Department of Pharmacology and Neuroscience and Institute for Aging and Alzheimer’s Disease Research, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Liang-Jun Yan
- Department of Pharmacology and Neuroscience and Institute for Aging and Alzheimer’s Disease Research, University of North Texas Health Science Center, Fort Worth, TX, USA
| |
Collapse
|