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Smietana M, Müller S. Stimuli-Responsive Boronate Formation to Control Nucleic Acid-Based Functional Architectures. Chempluschem 2024; 89:e202300613. [PMID: 38033190 DOI: 10.1002/cplu.202300613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023]
Abstract
Boronate esters, formed by the reaction of an oligonucleotide bearing a 5'-boronic acid moiety with the 3'-terminal cis-diol of another oligonucleotide, support the assembly of functional nucleic acid architectures. Reversible formation of boronate esters occurs in templated fashion and has been shown to restore the activity of split DNA and RNA enzymes as well as a split fluorescent light-up aptamer. Apart from their suitability for the design and application of split nucleic acid enzymes and aptamers in the field of biosensing, boronate esters may have played an important role in early life as surrogates of the natural phosphodiester bond. Their formation is reversible and thus fulfills an important requirement for biological self-assembly. Here we discuss the general concept of stimuli-dependent boronate formation and its application in biomolecules with implications for future research.
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Affiliation(s)
- Michael Smietana
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM Pôle Chimie Balard, 34095, Montpellier, France
| | - Sabine Müller
- Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Straße 4, 17489, Greifswald, Germany
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2
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Fuchs S, Ernst AU, Wang LH, Shariati K, Wang X, Liu Q, Ma M. Hydrogels in Emerging Technologies for Type 1 Diabetes. Chem Rev 2020; 121:11458-11526. [DOI: 10.1021/acs.chemrev.0c01062] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stephanie Fuchs
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Alexander U. Ernst
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Long-Hai Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Kaavian Shariati
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Xi Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Qingsheng Liu
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Minglin Ma
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
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Hiller NDJ, do Amaral e Silva NA, Tavares TA, Faria RX, Eberlin MN, de Luna Martins D. Arylboronic Acids and their Myriad of Applications Beyond Organic Synthesis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000396] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Noemi de Jesus Hiller
- Instituto de Química; Laboratório de Catálise e Síntese (Lab CSI); Laboratório 413; Universidade Federal Fluminense; Outeiro de São João Batista s/n; Campus do Valonguinho, Centro Niterói RJ 24020-141 Brasil
| | - Nayane Abreu do Amaral e Silva
- Instituto de Química; Laboratório de Catálise e Síntese (Lab CSI); Laboratório 413; Universidade Federal Fluminense; Outeiro de São João Batista s/n; Campus do Valonguinho, Centro Niterói RJ 24020-141 Brasil
| | - Thais Apolinário Tavares
- Instituto de Química; Laboratório de Catálise e Síntese (Lab CSI); Laboratório 413; Universidade Federal Fluminense; Outeiro de São João Batista s/n; Campus do Valonguinho, Centro Niterói RJ 24020-141 Brasil
| | - Robson Xavier Faria
- Laboratório de Toxoplasmose e outras Protozooses; Instituto Oswaldo Cruz, Fiocruz; Av. Brasil, 4365 Manguinhos Rio de Janeiro RJ 21040-360 Brasil
| | - Marcos Nogueira Eberlin
- Mackenzie Presbyterian University; School of Engineering; Rua da Consolação, 930 SP 01302-907 São Paulo Brasil
| | - Daniela de Luna Martins
- Instituto de Química; Laboratório de Catálise e Síntese (Lab CSI); Laboratório 413; Universidade Federal Fluminense; Outeiro de São João Batista s/n; Campus do Valonguinho, Centro Niterói RJ 24020-141 Brasil
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4
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António JPM, Russo R, Carvalho CP, Cal PMSD, Gois PMP. Boronic acids as building blocks for the construction of therapeutically useful bioconjugates. Chem Soc Rev 2019; 48:3513-3536. [DOI: 10.1039/c9cs00184k] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes boronic acid's contribution to the development of bioconjugates with a particular focus on the molecular mechanisms underlying its role in the construction and function of the bioconjugate, namely as a bioconjugation warhead, as a payload and as part of a bioconjugate linker.
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Affiliation(s)
- João P. M. António
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Roberto Russo
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. S. D. Cal
- Instituto de Medicina Molecular
- Faculty of Medicine
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
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Matsumoto A, Miyahara Y. 'Borono-lectin' based engineering as a versatile platform for biomedical applications. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:18-30. [PMID: 29296128 PMCID: PMC5738650 DOI: 10.1080/14686996.2017.1411143] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/26/2017] [Accepted: 11/27/2017] [Indexed: 05/23/2023]
Abstract
Boronic acids are well known for their ability to reversibly interact with the diol groups, a common motif of biomolecules including sugars and ribose. Due to their ability to interact with carbohydrates, they can be regarded as synthetic mimics of lectins, termed 'borono-lectins'. The borono-lectins can be tailored to elicit a broad profile of binding strength and specificity. This special property has been translated into many creative biomedical applications in a way interactive with biology. This review provides a brief overview of recent efforts of polymeric materials-based engineering taking advantage of such virtue of 'borono-lectins' chemistry, related to the field of biomaterials and drug delivery applications.
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Affiliation(s)
- Akira Matsumoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
- Kanagawa Institute of Industrial Science and Technology (KISTEC-KAST), Kawasaki, Japan
| | - Yuji Miyahara
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
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6
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Xiao D, Liu S, Liang L, Bi Y. Magnetic restricted-access microspheres for extraction of adrenaline, dopamine and noradrenaline from biological samples. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1768-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Okutucu B, Vurmaz D, Tuncal A, Türkcan C, Aktaş Uygun D, Akgöl S. Boronate affinity nanoparticles for nucleoside separation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 44:322-7. [DOI: 10.3109/21691401.2014.948550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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8
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Matsumoto A, Kataoka K, Miyahara Y. New directions in the design of phenylboronate-functionalized polymers for diagnostic and therapeutic applications. Polym J 2014. [DOI: 10.1038/pj.2014.42] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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SANJOH M, MIYAHARA Y, KATAOKA K, MATSUMOTO A. Phenylboronic Acids-based Diagnostic and Therapeutic Applications. ANAL SCI 2014; 30:111-7. [DOI: 10.2116/analsci.30.111] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Mai SANJOH
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Yuji MIYAHARA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Kazunori KATAOKA
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo
| | - Akira MATSUMOTO
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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10
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Applications of organoboron compounds in carbohydrate chemistry and glycobiology: analysis, separation, protection, and activation. Carbohydr Res 2013; 381:112-22. [DOI: 10.1016/j.carres.2013.09.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/04/2013] [Accepted: 09/06/2013] [Indexed: 01/05/2023]
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11
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Wu W, Zhou S. Responsive materials for self-regulated insulin delivery. Macromol Biosci 2013; 13:1464-77. [PMID: 23839986 DOI: 10.1002/mabi.201300120] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 03/11/2013] [Indexed: 01/17/2023]
Abstract
With diabetes mellitus becoming an important public health concern, insulin-delivery systems are attracting increasing interest from both scientific and technological researchers. This feature article covers the present state-of-the-art glucose-responsive insulin-delivery system (denoted as GRIDS), based on responsive polymer materials, a promising system for self-regulated insulin delivery. Three types of GRIDS are discussed, based on different fundamental mechanisms of glucose-recognition, with: a) glucose enzyme, b) glucose binding protein, and c) synthetic boronic acid as the glucose-sensitive component. At the end, a personal perspective on the major issues yet to be worked out in future research is provided.
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Affiliation(s)
- Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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12
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Martin AR, Vasseur JJ, Smietana M. Boron and nucleic acid chemistries: merging the best of both worlds. Chem Soc Rev 2013; 42:5684-713. [DOI: 10.1039/c3cs60038f] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Gomes AG, Azevedo AM, Aires-Barros MR, Prazeres DMF. Validation and scale-up of plasmid DNA purification by phenyl-boronic acid chromatography. J Sep Sci 2012; 35:3190-6. [DOI: 10.1002/jssc.201200225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 03/25/2012] [Accepted: 03/26/2012] [Indexed: 11/05/2022]
Affiliation(s)
- A. Gabriela Gomes
- IBB; Institute for Biotechnology and Bioengineering; Centre for Biological and Chemical Engineering; Department of Bioengineering; Instituto Superior Técnico; Universidade Técnica de Lisboa; Lisboa Portugal
| | - Ana M. Azevedo
- IBB; Institute for Biotechnology and Bioengineering; Centre for Biological and Chemical Engineering; Department of Bioengineering; Instituto Superior Técnico; Universidade Técnica de Lisboa; Lisboa Portugal
| | - M. Raquel Aires-Barros
- IBB; Institute for Biotechnology and Bioengineering; Centre for Biological and Chemical Engineering; Department of Bioengineering; Instituto Superior Técnico; Universidade Técnica de Lisboa; Lisboa Portugal
| | - D. Miguel F. Prazeres
- IBB; Institute for Biotechnology and Bioengineering; Centre for Biological and Chemical Engineering; Department of Bioengineering; Instituto Superior Técnico; Universidade Técnica de Lisboa; Lisboa Portugal
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14
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Siegel D. Applications of reversible covalent chemistry in analytical sample preparation. Analyst 2012; 137:5457-82. [PMID: 23013801 DOI: 10.1039/c2an35697j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Reversible covalent chemistry (RCC) adds another dimension to commonly used sample preparation techniques like solid-phase extraction (SPE), solid-phase microextraction (SPME), molecular imprinted polymers (MIPs) or immuno-affinity cleanup (IAC): chemical selectivity. By selecting analytes according to their covalent reactivity, sample complexity can be reduced significantly, resulting in enhanced analytical performance for low-abundance target analytes. This review gives a comprehensive overview of the applications of RCC in analytical sample preparation. The major reactions covered include reversible boronic ester formation, thiol-disulfide exchange and reversible hydrazone formation, targeting analyte groups like diols (sugars, glycoproteins and glycopeptides, catechols), thiols (cysteinyl-proteins and cysteinyl-peptides) and carbonyls (carbonylated proteins, mycotoxins). Their applications range from low abundance proteomics to reversible protein/peptide labelling to antibody chromatography to quantitative and qualitative food analysis. In discussing the potential of RCC, a special focus is on the conditions and restrictions of the utilized reaction chemistry.
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Affiliation(s)
- David Siegel
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str 11, 12489 Berlin, Germany.
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15
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Li H, Liu Z. Recent advances in monolithic column-based boronate-affinity chromatography. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.03.010] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Sun S, Tang Y, Fu Q, Liu X, Du W, Guo L, Zhao Y. Preparation of agarose/chitosan composite supermacroporous monolithic cryogels for affinity purification of glycoproteins. J Sep Sci 2012; 35:893-900. [DOI: 10.1002/jssc.201100940] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sijuan Sun
- Faculty of Pharmacy; School of Medicine; Xi'an Jiaotong University; Xi'an China
| | - Yuhai Tang
- Institute of Analytical Sciences; School of Science; Xi'an Jiaotong University; Xi'an China
| | - Qiang Fu
- Faculty of Pharmacy; School of Medicine; Xi'an Jiaotong University; Xi'an China
| | - Xuan Liu
- Faculty of Pharmacy; School of Medicine; Xi'an Jiaotong University; Xi'an China
| | - Wei Du
- Faculty of Pharmacy; School of Medicine; Xi'an Jiaotong University; Xi'an China
| | - Li'an Guo
- Xi'an Jiaotong University Bio-sep Technologies Co. Ltd; Xi'an China
| | - Yanding Zhao
- Xi'an Jiaotong University Bio-sep Technologies Co. Ltd; Xi'an China
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17
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Studies on the adsorption of cell impurities from plasmid-containing lysates to phenyl boronic acid chromatographic beads. J Chromatogr A 2011; 1218:8629-37. [DOI: 10.1016/j.chroma.2011.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 09/08/2011] [Accepted: 10/01/2011] [Indexed: 11/17/2022]
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18
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He J, Liu Z, Ren L, Liu Y, Dou P, Qian K, Chen HY. On-line coupling of in-tube boronate affinity solid phase microextraction with high performance liquid chromatography–electrospray ionization tandem mass spectrometry for the determination of cis-diol biomolecules. Talanta 2010; 82:270-6. [DOI: 10.1016/j.talanta.2010.04.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 04/15/2010] [Accepted: 04/16/2010] [Indexed: 10/19/2022]
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19
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Mohapatra S, Panda N, Pramanik P. Boronic acid functionalized superparamagnetic iron oxide nanoparticle as a novel tool for adsorption of sugar. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.05.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Collins BE, Sorey S, Hargrove AE, Shabbir SH, Lynch VM, Anslyn EV. Probing Intramolecular B−N Interactions in Ortho-Aminomethyl Arylboronic Acids. J Org Chem 2009; 74:4055-60. [DOI: 10.1021/jo900187a] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Byron E. Collins
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
| | - Steven Sorey
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
| | - Amanda E. Hargrove
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
| | - Shagufta H. Shabbir
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
| | - Vincent M. Lynch
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
| | - Eric V. Anslyn
- Department of Chemistry and Biochemistry, The University of Texas, Austin, Texas, 1 University Station A5300, Austin, Texas 78712
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21
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Bhatnagar PK, Das D, Suresh MR. Sequential affinity purification of peroxidase tagged bispecific anti-SARS-CoV antibodies on phenylboronic acid agarose. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 863:235-41. [PMID: 18258500 PMCID: PMC2678934 DOI: 10.1016/j.jchromb.2008.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 01/03/2008] [Accepted: 01/04/2008] [Indexed: 11/19/2022]
Abstract
Hybrid hybridomas (quadromas) are derived by fusing at least two hybridomas, each producing a different antibody of predefined specificity. The resulting cell secretes not only the immunoglobulins of both parents but also hybrid molecules manifesting the binding characteristics of the individual fusion partners. Purification of the desired bispecific immunoprobe with high specific activity from a mixture of bispecific and monospecific monoclonal antibodies requires special strategies. Using a dual, sequential affinity chromatography (Protein-G chromatography followed by m-aminophenyleboronic acid agarose column), we have purified bispecific monoclonal antibodies (BsMAb) as a preformed HRPO (Horseradish Peroxidase) complex (BsMAb-HRPO). The quadroma culture supernatant was initially processed on a Protein-G column to isolate all the species of immunoglobulins. This pre-enriched fraction was subsequently passed through the aminophenyleboronic acid column super saturated with HRPO. The column matrix has the ability to bind to proteins such as HRPO with vicinal diols. The enzyme loaded column captures the desired bispecific anti-SARS-CoVxanti-HRPO species with the elimination of the monospecific anti-SARS-CoV MAb to result in a high specific activity diagnostic probe. The presence of anti-HRPO MAb is an acceptable impurity as it will not bind to the target SARS-CoV NP antigen and will get washed out during the ELISA procedure.
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Affiliation(s)
- Pravin K. Bhatnagar
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2N8
| | - Dipankar Das
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2N8
| | - Mavanur R. Suresh
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2N8
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22
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Complexation of sugars with dihydroxyborylphenyl groups attached to magnetite particles via graft polymerization of acrylic acid. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Zhu L, Shabbir SH, Gray M, Lynch VM, Sorey S, Anslyn EV. A Structural Investigation of the N−B Interaction in an o-(N,N-Dialkylaminomethyl)arylboronate System. J Am Chem Soc 2006; 128:1222-32. [PMID: 16433539 DOI: 10.1021/ja055817c] [Citation(s) in RCA: 249] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
o-(Pyrrolidinylmethyl)phenylboronic acid (4) and its complexes with bifunctional substrates such as catechol, alpha-hydroxyisobutyric acid, and hydrobenzoin have been studied in detail by X-ray crystallography, (11)B NMR, and computational analysis. The N-B interactions in analogous boronic acids and esters have been extensively cited in molecular recognition and chemosensing literature. The focal point of this study was to determine the factors that are pertinent to the formation of an intramolecular N-B dative bond. Our structural study predicts that the formation of an N-B dative bond, and/or solvent insertion to afford a tetrahedral boronate anion, depends on the solvent and the complexing substrate present. Specifically, from (11)B NMR studies, complexation of 4 with electron-withdrawing and/or vicinally bifunctionalized substrates promotes both the formation of N-B dative bonds and the solvation of sp(2) boron to a tetrahedral sp(3) boronate. In the solid state, the presence of an N-B dative bond in the complex of 4 and catechol (7) depends on the solvent from which it crystallizes. From chloroform, an N-B bond was observed, whereas from methanol, a methoxylated boronate was formed, where the methoxy group is hydrogen-bonded with the neighboring tertiary ammonium ion. The structural optimization of compounds 4 and 7 using density functional theory in a simulated water continuum also predicts that complexation of 4 and catechol promotes either the formation of an N-B bond or solvolysis if 1 equiv of water is present. The conclusion from this study will help in the design of future chemosensing technologies based on o-(N,N-dialkylaminomethyl)arylboronate scaffolds that are targeting physiologically important substances such as saccharides, alpha-hydroxycarboxylates, and catecholamines.
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Affiliation(s)
- Lei Zhu
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 78712, USA
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Foettinger A, Leitner A, Lindner W. Solid-phase capture and release of arginine peptides by selective tagging and boronate affinity chromatography. J Chromatogr A 2005; 1079:187-96. [PMID: 16038304 DOI: 10.1016/j.chroma.2005.03.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
A method for the selection of arginine-containing peptides from a mixture by a solid phase capture and release technique is presented. The method is based on the covalent modification of the guanidine group of arginine with 2,3-butanedione and phenylboronic acid under alkaline conditions. Using polymeric materials with immobilised phenylboronic acid the arginine-peptides can be captured on a solid support while arginine-free peptides are not covalently bound and can be washed away. Finally, the arginine-peptides can be cleaved again from the boronic acid beads due to the reversibility of the reaction. The recovered peptides are then analysed by liquid chromatography-tandem mass spectrometry. The method was optimised with model peptides with regard to the non-specific binding of arginine-free peptides and quantitative cleavage of the label after the selection step. Using an adequate protocol, the applicability towards more complex samples was successfully tested with a tryptic digest of a mixture of three standard proteins.
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Affiliation(s)
- A Foettinger
- Christian Doppler Laboratory for Molecular Recognition Materials, Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
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25
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Shimelis O, Zhou X, Li G, Giese RW. Phenolic extraction of DNA from mammalian tissues and conversion to deoxyribonucleoside-5'-monophosphates devoid of ribonucleotides. J Chromatogr A 2005; 1053:143-9. [PMID: 15543980 DOI: 10.1016/j.chroma.2004.04.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Towards a goal of detecting scaled-up DNA adducts as altered deoxynucleotides by mass spectrometry, we have set up a practical and general method for isolating DNA-derived deoxyribonucleoside-5'-monophosphates devoid of ribonucleotides starting with a 1 g sample of mammalian tissue. The method is practical because costs have been minimized, and it is general because it can be applied to a more difficult sample such as mouse skin or non-fresh calf liver. The procedure, consisting of a series of steps that were largely gleaned and tuned from prior literature, proceeds as follows: (1) homogenize the tissue in sodium dodecyl sulfate; (2) digest with ribonuclease A, ribonuclease TI, alpha-amylase and proteinase K; (3) partition between water and phenol; (4) precipitate the DNA with ethanol followed by redissolving and dialysis; and (5) digest with nuclease P1 and phosphodiesterase I followed by ultrafiltration and boric acid gel chromatography. The yellow to brown color of DNA from difficult tissues only persisted up to the ultrafiltration step. Apparently this DNA was contaminated with iron-containing proteins. Residual ribonucleotides were not observable (<0.1%) by HPLC in the final sample. Without boric acid gel chromatography, residual contamination by ribonucleotides was about 1% even when the DNA was purified before digestion by phenol partitioning followed by use of a Genomic Tip kit from Qiagen.
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Affiliation(s)
- Olga Shimelis
- Department of Pharmaceutical Sciences in the Bouve College of Health Sciences, Barnett Institute and Chemistry Department, Northeastern University, Boston, MA 02115, USA
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Sissi C, Mancin F, Gatos M, Palumbo M, Tecilla P, Tonellato U. Efficient Plasmid DNA Cleavage by a Mononuclear Copper(II) Complex. Inorg Chem 2005; 44:2310-7. [PMID: 15792466 DOI: 10.1021/ic049316o] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cu(II) complex of the ligand all-cis-2,4,6-triamino-1,3,5-trihydroxycyclohexane (TACI) is a very efficient catalyst of the cleavage of plasmid DNA in the absence of any added cofactor. The maximum rate of degradation of the supercoiled plasmid DNA form, obtained at pH 8.1 and 37 degrees C, in the presence of 48 microM TACI.Cu(II), is 2.3 x 10(-3) s(-1), corresponding to a half-life time of only 5 min for the cleavage of form I (supercoiled) to form II (relaxed circular). The dependence of the rate of plasmid DNA cleavage from the TACI.Cu(II) complex concentration follows an unusual and very narrow bell-like profile, which suggests an high DNA affinity of the complexes but also a great tendency to form unreactive dimers. The reactivity of the TACI.Cu(II) complexes is not affected by the presence of several scavengers for reactive oxygen species or when measured under anaerobic conditions. Moreover, no degradation of the radical reporter Rhodamine B is observed in the presence of such complexes. These results are consistent with the operation of a prevailing hydrolytic pathway under the normal conditions used, although the failure to obtain enzymatic religation of the linearized DNA does not allow one to rule out the occurrence of a nonhydrolytic oxygen-independent cleavage. A concurrent oxidative mechanism becomes competitive upon addition of reductants or in the presence of high levels of molecular oxygen: under such conditions, in fact, a remarkable increase in the rate of DNA cleavage is observed.
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Affiliation(s)
- Claudia Sissi
- Dipartimento di Scienze Chimiche e Istituto CNR Tecnologia delle Membrane-Sezione di Padova, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
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Smoum R, Srebnik M. Boronated saccharides: potential applications. CONTEMPORARY ASPECTS OF BORON: CHEMISTRY AND BIOLOGICAL APPLICATIONS 2005. [DOI: 10.1016/s0169-3158(06)80008-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Shimomura M, Abe T, Sato Y, Oshima K, Yamauchi T, Miyauchi S. Sugar-binding property of magnetite particles modified with dihydroxyborylphenyl groups via graft polymerization of acrylic acid. POLYMER 2003. [DOI: 10.1016/s0032-3861(03)00327-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Glavin DP, Schubert M, Bada JL. Direct isolation of purines and pyrimidines from nucleic acids using sublimation. Anal Chem 2002; 74:6408-12. [PMID: 12510767 DOI: 10.1021/ac0259663] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A sublimation technique was developed to isolate purines and pyrimidines directly from lambda-deoxyribonucleic acid (lambda-DNA) and Escherichia coli cells. The sublimation of adenine, cytosine, guanine, and thymine from lambda-DNA was tested under reduced pressure (approximately 0.5 Torr) at temperatures of >150 degrees C. With the exception of guanine, approximately 60-75% of each base was sublimed directly from the lambda-DNA and recovered on a coldfinger of the sublimation apparatus after heating to 450 degrees C. Several nucleobases including adenine, cytosine, thymine, and uracil were also recovered from E. coli bacteria after heating the cells to the same temperature, although some thermal decomposition of the bases also occurred. These results demonstrate the feasibility of using sublimation to isolate purines and pyrimidines from native E. coli DNA and RNA without any chemical treatment of the cells.
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Affiliation(s)
- Daniel P Glavin
- Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California 92093, USA
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30
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Werner MH, Gupta V, Lambert LJ, Nagata T. Uniform 13C/15N-labeling of DNA by tandem repeat amplification. Methods Enzymol 2002; 338:283-304. [PMID: 11460553 DOI: 10.1016/s0076-6879(02)38225-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
An optimized procedure has been described for the large-scale production of stable isotopeenriched duplex oligonucleotides of designed sequence. Large-scale production of labeled nucleotide triphosphates can be produced in this procedure simultaneously with labeled proteins, thereby providing synthetic dNMP precursors at no additional cost. The procedure is robust, with a minimum product:template yield of 800:1 overall, and produces > 99% single-length product. Tandem repeat PCR amplification is a general approach to large scale synthesis of duplex oligonucleotides and may have applications to both NMR and X-ray methods, particularly for product lengths in excess of 25 base pairs where failed sequences from solid-phase synthesis can be difficult to remove chromatographically. A drawback of the present approach is that the product is a duplex of two equal-length strands, making single-stranded products more difficult to prepare. For this reason, it could be preferable to produce single-stranded products by the [figure: see text] method of Zimmer and Crothers. Although a single base type can be selectively enriched in this approach, chemical synthesis will provide greater flexibility for labeled DNAs requiring site-specific labels at only one or a small number of nucleotide positions in the sequence. Therefore, maximum flexibility in labeling patterns can be realized by judicious choice of labeling method appropriate to the type of DNA product and extent of isotopic enrichment desired.
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Affiliation(s)
- M H Werner
- Laboratory of Molecular Biophysics, Rockefeller University, New York, New York 10021, USA
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31
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Li YC, Larrson EL, Jungvid H, Galaev IY, Mattiasson B. Shielding of protein-boronate interactions during boronate chromatography of neoglycoproteins. J Chromatogr A 2001; 909:137-45. [PMID: 11269514 DOI: 10.1016/s0021-9673(00)01106-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A method for separating glycoproteins on a boronate column under conditions which suppress the interactions between the protein moiety and the boronic acid ligand has been developed. A model system consisting of non-glycosylated chymotrypsin and maltose-modified chymotrypsin (cht-mal) was utilised in the investigations. Chymotrypsin was chosen as the model protein because of its known interaction with boronate. By coupling maltose to chymotrypsin, a neoglycoprotein was created which has the property of binding to the affinity matrix both via the protein moiety and via the carbohydrate residues. The introduction of a so-called shielding reagent into the buffer solutions during chromatography resulted in the prevention of the protein-boronate interactions while the carbohydrate-boronate interaction was little influenced. Different types of, mainly low-molecular-mass, polyhydroxyl chemicals were screened in order to correlate the shielding efficiency to the chemical structure of the investigated compounds. Polyhydroxyl chemicals with a conformation that allows the formation of tridentate complexes with the boronate anion provided the highest shielding efficiencies.
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Affiliation(s)
- Y C Li
- Gramineer International AB, IDEON, Lund, Sweden
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32
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Affiliation(s)
- X C Liu
- Department of Chemistry, Austin Peay State University, Clarksville, TN, USA
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33
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Medda R, Padiglia A, Messana I, Floris G, Castagnola M. Separation of diadenosine polyphosphates by capillary electrophoresis. Electrophoresis 2000; 21:2412-6. [PMID: 10939453 DOI: 10.1002/1522-2683(20000701)21:12<2412::aid-elps2412>3.0.co;2-i] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The influence of buffer composition and pH on the electrophoretic behavior of diadenosine polyphosphates with a phosphate chain ranging from two to five phosphate groups has been examined. The electrophoretic mobility in carbonate buffer increases according to the number of phosphates, whereas in borate buffer the mobility changes in an irregular way as a function of pH. This finding can be rationalized by a well-known interaction of borate with ribose rings, which modifies the charge and the hydrodynamic radius of each diadenosine polyphosphate in a different way. Our study shows that the best separation of diadenosine polyphosphates can be achieved at the highest pH values of the range examined both in borate and carbonate buffers.
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Affiliation(s)
- R Medda
- Department of Sciences Applied to Biosystems, University of Cagliari, Italy
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34
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OSHIMA K, KOBAYASHI K, YAMAUCHI T, SHIMOMURA M, MIYAUCHI S. Sugar Recognition with a Dihydroxyborane Derivative Layer Assembled on Gold Electrode. ACTA ACUST UNITED AC 2000. [DOI: 10.1246/nikkashi.2000.405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Abstract
Batch equilibrium adsorption isotherm determination is used to characterize the adsorption of mixed yeast RNA on agarose-immobilized m-aminophenylboronic acid. It is shown that the affinity-enhancing influence of divalent cations depends strongly on the precise nature of the cation used, with barium being far more effective than the conventionally-used magnesium. This adsorption-promoting influence of barium is suggested to arise primarily from ionic influences on the structure and rigidity of the RNA molecule, as the adsorption of ribose-based small molecules is not similarly affected. The substitution of barium for the standard magnesium counterion does not greatly promote the adsorption of DNA, implying that the effect is specific to RNA and may be useful in boronate-based RNA separations. RNA adsorption isotherms exhibit sharp transitions as functions of temperature, and these transitions occur at different temperatures with Mg2+ and with Ba2+. Adsorption affinity and capacity were found to increase markedly at lower temperatures, suggestive of an enthalpically favored interaction process. The stoichiometric displacement parameter, Z, in Ba2+ buffer is three times the value in Mg2+ buffer, and is close to unity.
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Affiliation(s)
- N Singh
- Department of Chemical Engineering, University of Houston, TX 77204-4792, USA
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36
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Burrows CJ, Muller JG. Oxidative Nucleobase Modifications Leading to Strand Scission. Chem Rev 1998; 98:1109-1152. [PMID: 11848927 DOI: 10.1021/cr960421s] [Citation(s) in RCA: 1395] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cynthia J. Burrows
- Department of Chemistry, University of Utah, 315 S. 1400 East, Salt Lake City, Utah 84112-0850
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37
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Frantzen F. Chromatographic and electrophoretic methods for modified hemoglobins. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1997; 699:269-86. [PMID: 9392379 DOI: 10.1016/s0378-4347(97)00245-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The discovery of the clinically important glycohemoglobin adducts and their relation to diabetes mellitus have greatly stimulated the study of other minor post-translational modifications of hemoglobin. Chromatographic and electrophoretic procedures have played an important role in these studies. Today several hemoglobin adducts are known and the formation of adducts with glucose, phosphorylated carbohydrates, urea/cyanate, aspirin, vitamins, acetaldehyde, penicillin and acetyl CoA have been described. Furthermore, new adducts, such as those observed using hemoglobin as a biochemical marker monitoring environmental, occupational and lifestyle exposures to reactive toxic chemicals are constantly being reported. This review deals with chromatographic and electrophoretic separation methods available for the study of non-enzymatic post-translational modifications of hemoglobin. Suitability, perspectives and biomedical applications are discussed.
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38
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Shiino D, Kubo A, Murata Y, Koyama Y, Kataoka K, Kikuchi A, Sakurai Y, Okano T. Amine effect on phenylboronic acid complex with glucose under physiological pH in aqueous solution. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 1996; 7:697-705. [PMID: 8639478 DOI: 10.1163/156856296x00462] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A new "intelligent' polymer system was developed utilizing the binding and exchange of phenylboronic acid (PBA) with polyols and/or glucose. In this improved system, an amine component was incorporated into the polymer chain along with PBA, to enhance binding between PBA and glucose under physiological conditions. The PBA-based polymer was formed by free-radical copolymerization of 3-methacrylamidophenylboronic acid (MAPB) with comonomers, N,N-dimethylaminopropylacrylamide (DMAPAA) and acrylamide (AAm) in the presence of N,N'-methylenebis(acrylamide) (Bis-AAm) as a cross-linker. The proportion of the amount of PBA groups complexed with glucose vs total amount of PBA groups was determined by the batch method. Compared to PBA copolymers synthesized without amine component, the proportion increased as a function of the amine content as well as the pH of the buffer. These results confirm that the interaction of neighboring amines (unprotonated) to PBA strengthens the binding with glucose, especially at pH 7.4 and above. This new PBA-amine copolymer is promising as a material useful for polyol separation, protection of polyols, and possibly, as an insulin delivery device.
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Affiliation(s)
- D Shiino
- International Center for Biomaterials Science (ICBS), Chiba, Japan
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39
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Frantzen F, Grimsrud K, Heggli DE, Sundrehagen E. Protein-boronic acid conjugates and their binding to low-molecular-mass cis-diols and glycated hemoglobin. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL APPLICATIONS 1995; 670:37-45. [PMID: 7493083 DOI: 10.1016/0378-4347(95)00141-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Different methods for covalent linkage of phenylboronic acid (PBA) to structural proteins and enzymes are presented. Protein-PBA conjugates, free in solution or immobilised on magnetizable polymer particles, were tested for their binding of D-sorbitol, D-mannose and glycohemoglobin (GHb). Similarly, alkaline phosphatase-PBA conjugates were used in an attempted enzyme-linked sorbent assay for the detection of GHb. Affinity chromatography on immobilised D-mannose and gel chromatographic studies of protein-PBA complexes with [14C]sorbitol, clearly illustrated a low affinity of the interaction studied. Glycated hemoglobin could not be detected using the enzyme-linked sorbent assay approach. However, GHb was found to be specifically retained on columns filled with protein-PBA-coated particles as affinity matrix, enabling the glycation level of blood samples to be determined.
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40
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Adamek V, Liu XC, Zhang YA, Adamkova K, Scouten WH. New aliphatic boronate ligands for affinity chromatography. J Chromatogr A 1992. [DOI: 10.1016/0021-9673(92)85190-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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42
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Tomono Y, Abe K, Watanabe K. High-performance liquid affinity chromatography and in situ fluorescent labeling on thin-layer chromatography of glycosphingolipids. Anal Biochem 1990; 184:360-8. [PMID: 2327579 DOI: 10.1016/0003-2697(90)90694-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A method combining high-performance liquid affinity chromatography and in situ fluorescent labeling on thin-layer chromatography is introduced for determination of glycosphingolipids. Glycolipids in crude extract from rat liver were separated quantitatively from neutral lipids and phospholipids with a phenylboronic acid-derivatized silica gel column. Glycolipids were eluted quantitatively with approximately 98% of crude extract recovered. This column is useful for selective cleanup of glycosphingolipids in crude extract from tissue. Simultaneously, a fluorometric determination of glycosphingolipids with 7-amino-4-methylcoumarin after NaIO4 oxidation on a TLC plate was introduced and its condition was optimized. Glycolipids in amounts ranging from 1 to 100 pmol are easily detectable and give linear responses over the respective ranges. The method is fast and useful for the determination of glycolipids from small amounts of biological samples and requires a minimum amount of about 1 mg of biological specimen for determination of glycolipids.
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Affiliation(s)
- Y Tomono
- Shigei Medical Research Institute, Division of Biochemistry, Okayama, Japan
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43
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Soundararajan S, Badawi M, Kohlrust CM, Hageman JH. Boronic acids for affinity chromatography: spectral methods for determinations of ionization and diol-binding constants. Anal Biochem 1989; 178:125-34. [PMID: 2729565 DOI: 10.1016/0003-2697(89)90367-9] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Arylboronic acids attached to solid matrices have proved useful for the diol-specific chromatography of biomolecules and affinity purification of enzymes by exchangeable-ligand chromatography. The latter use has been limited by the intrinsic ionization constant (pKa approximately 9) of the most common commercial products. The synthesis of several arylboronic acids with ionization constants near neutrality are described, and the application of a new general, spectral-difference method for determining acid ionization constants and formation constants with fructose is developed. In particular 4-(N-methyl) carboxamido-benzeneboronic acid was found to have a pKa of 7.86 and a formation constant with D-fructose of 8600. It was stable toward acid or base hydrolysis. We suggest that 4-carboxybenzeneboronic acid might be useful for preparing matrices for enzyme affinity chromatography.
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Affiliation(s)
- S Soundararajan
- Department of Chemistry, New Mexico State University, Las Cruces 88003
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44
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Irvine RF, Letcher AJ, Lander DJ, Berridge MJ. Specificity of inositol phosphate-stimulated Ca2+ mobilization from Swiss-mouse 3T3 cells. Biochem J 1986; 240:301-4. [PMID: 3827851 PMCID: PMC1147412 DOI: 10.1042/bj2400301] [Citation(s) in RCA: 163] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Pure samples of inositol 1,3,4-trisphosphate, inositol 1,3,4,5-tetrakisphosphate and inositol 1,2-cyclic 4,5-trisphosphate were prepared and tested for their ability to mobilize calcium from intracellular stores in a permeabilized Swiss mouse 3T3 cell preparation. In this system inositol 1,4,5-trisphosphate mobilizes Ca2+ with a half-maximal dose of 0.3 microM. Inositol 1,2-cyclic 4,5-trisphosphate mobilized Ca2+ to the same extent with a half-maximal dose of 0.3 microM, whereas inositol 1,3,4-trisphosphate required a half-maximal dose of approx. 9 microM to give the same effect. Inositol 1,3,4,5-tetrakisphosphate was ineffective up to 20 microM and at that concentration did not antagonize the mobilization induced by inositol 1,4,5-trisphosphate. The relevance of these findings to the function of the inositol tris/tetrakis-phosphate pathway is discussed.
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45
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Zhang SB, Bronskill PM, Wang QS, Wong JT. Separation of tRNA by high-performance liquid chromatography at ambient temperature. J Chromatogr A 1986; 360:282-7. [PMID: 2426292 DOI: 10.1016/s0021-9673(00)91676-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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46
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Lang HR, Rizzi A. Separation of purine bases, nucleosides and nucleotides by a column-switching technique combining reversed-phase and anion-exchange high-performance liquid chromatography. J Chromatogr A 1986; 356:115-22. [PMID: 3711165 DOI: 10.1016/s0021-9673(00)91471-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An on-line two-stage column chromatographic technique is described which combines reversed-phase and anion-exchange chromatography for the separation of purine nucleic acid components. The elution program applied, consisting of two gradient programmes, provides a separation of bases and nucleosides on the octadecyl silica column and a separation of the nucleotides on the anion-exchange column to which they have been switched at the beginning of the elution. This method is easy to modify for special problems and can be used when establishing a complete profile of purines.
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47
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Paquin J, Baugh CM, MacKenzie RE. Preparation of tritium-labeled tetrahydropteroylpolyglutamates of high specific radioactivity. Anal Biochem 1985; 146:52-8. [PMID: 3993943 DOI: 10.1016/0003-2697(85)90394-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Tritium-labeled [6S]-tetrahydropteroylpolyglutamates of high radiospecific activity were prepared from the corresponding pteroylpolyglutamates. Malic enzyme and D,L-[2-3H]malate were used as a generating system to produce [4A-3H]NADPH which was coupled to the dihydrofolate reductase-catalyzed reduction of chemically prepared dihydropteroylpolyglutamate derivatives. Passage of the reaction mixtures through a column of immobilized boronate effectively removed NADPH, and the tetrahydropteroylpolyglutamates were subsequently purified by chromatography on DEAE-cellulose. Overall yields of the [6S]-tetrahydro derivatives were 18-48% and the radiospecific activities were 3-4.5 mCi X mumol-1.
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48
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Abstract
A new procedure was described for assay of diadenosine tetraphosphate (Ap4A) hydrolases based on boronate chromatography. Potential reaction products, AMP, ADP, and ATP, of the hydrolysis of Ap4A were separated from residual substrate by chromatography on a boronate-derivatized cation-exchange resin, Bio-Rex 70. Separation was achieved by changing the concentrations of ethanol and ammonium acetate in the elution buffers. Picomole masses of products were detectable, blank dpm values were less than 0.5% of the total dpm, and auxiliary enzymes were not required. The procedure was specifically described for Ap4A pyrophosphohydrolase from Physarum polycephalum. The assay is generally applicable for dinucleoside polyphosphate hydrolases which hydrolyze other substrates such as Ap3A, Ap5A, Ap6A, and Gp4G. Dinucleotide polyphosphates are readily purified by chromatography on this boronate resin in a volatile buffer. Tes, Tricine, and Tris buffers significantly interfered with the chromatography of ATP.
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49
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Discontinuous DNA replication of Drosophila melanogaster is primed by octaribonucleotide primer. Mol Cell Biol 1984. [PMID: 6436687 DOI: 10.1128/mcb.4.8.1591] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To investigate the precise structure of eucaryotic primer RNA made in vivo, short DNA chains isolated from nuclei of Drosophila melanogaster embryos were analyzed. Post-labeling of 5' ends of short DNA chains with polynucleotide kinase and [gamma-32P]ATP revealed that 7% of the DNA fragments were covalently linked with mono- to octaribonucleotide primers at their 5' ends. Octaribonucleotides, the major component (ca. 30%), formed the cap structure in the reaction with vaccinia guanylyltransferase and [alpha-32P]GTP, indicating that they were the intact primer RNA with tri- (or di-) phosphate termini, and the shorter ribooligomers were degradation intermediates. The intact primers started with purine (A/G ratio, 4:1), and the starting few ribonucleotide residues were rich in A.
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50
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Kitani T, Yoda K, Okazaki T. Discontinuous DNA replication of Drosophila melanogaster is primed by octaribonucleotide primer. Mol Cell Biol 1984; 4:1591-6. [PMID: 6436687 PMCID: PMC368952 DOI: 10.1128/mcb.4.8.1591-1596.1984] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
To investigate the precise structure of eucaryotic primer RNA made in vivo, short DNA chains isolated from nuclei of Drosophila melanogaster embryos were analyzed. Post-labeling of 5' ends of short DNA chains with polynucleotide kinase and [gamma-32P]ATP revealed that 7% of the DNA fragments were covalently linked with mono- to octaribonucleotide primers at their 5' ends. Octaribonucleotides, the major component (ca. 30%), formed the cap structure in the reaction with vaccinia guanylyltransferase and [alpha-32P]GTP, indicating that they were the intact primer RNA with tri- (or di-) phosphate termini, and the shorter ribooligomers were degradation intermediates. The intact primers started with purine (A/G ratio, 4:1), and the starting few ribonucleotide residues were rich in A.
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