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Wezynfeld NE, Sudzik D, Tobolska A, Makarova K, Stefaniak E, Frączyk T, Wawrzyniak UE, Bal W. The Angiotensin Metabolite His-Leu Is a Strong Copper Chelator Forming Highly Redox Active Species. Inorg Chem 2024; 63:12268-12280. [PMID: 38877980 PMCID: PMC11220758 DOI: 10.1021/acs.inorgchem.4c01640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 07/02/2024]
Abstract
His-Leu is a hydrolytic byproduct of angiotensin metabolism, whose concentration in the bloodstream could be at least micromolar. This encouraged us to investigate its Cu(II) binding properties and the concomitant redox reactivity. The Cu(II) binding constants were derived from isothermal titration calorimetry and potentiometry, while identities and structures of complexes were obtained from ultraviolet-visible, circular dichroism, and room-temperature electronic paramagnetic resonance spectroscopies. Four types of Cu(II)/His-Leu complexes were detected. The histamine-like complexes prevail at low pH. At neutral and mildly alkaline pH and low Cu(II):His-Leu ratios, they are superseded by diglycine-like complexes involving the deprotonated peptide nitrogen. At His-Leu:Cu(II) ratios of ≥2, bis-complexes are formed instead. Above pH 10.5, a diglycine-like complex containing the equatorially coordinated hydroxyl group predominates at all ratios tested. Cu(II)/His-Leu complexes are also strongly redox active, as demonstrated by voltammetric studies and the ascorbate oxidation assay. Finally, numeric competition simulations with human serum albumin, glycyl-histydyl-lysine, and histidine revealed that His-Leu might be a part of the low-molecular weight Cu(II) pool in blood if its abundance is >10 μM. These results yield further questions, such as the biological relevance of ternary complexes containing His-Leu.
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Affiliation(s)
- Nina E. Wezynfeld
- Chair of
Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Dobromiła Sudzik
- Institute
of Biochemistry and Biophysics, Polish Academy
of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Aleksandra Tobolska
- Chair of
Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Katerina Makarova
- Institute
of Biochemistry and Biophysics, Polish Academy
of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
- Department
of Organic and Physical Chemistry, Faculty
of Pharmacy, Medical University of Warsaw, Żwirki i Wigury 61, 02-091 Warsaw, Poland
| | - Ewelina Stefaniak
- Institute
of Biochemistry and Biophysics, Polish Academy
of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
- National
Heart and Lung Institute, Imperial College
London, Molecular Sciences
Research Hub, London W12
0BZ, United Kingdom
| | - Tomasz Frączyk
- Institute
of Biochemistry and Biophysics, Polish Academy
of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Urszula E. Wawrzyniak
- Chair of
Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Wojciech Bal
- Institute
of Biochemistry and Biophysics, Polish Academy
of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
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Płonka D, Kotuniak R, Dąbrowska K, Bal W. Electrospray-Induced Mass Spectrometry Is Not Suitable for Determination of Peptidic Cu(II) Complexes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2766-2776. [PMID: 34738801 PMCID: PMC8640992 DOI: 10.1021/jasms.1c00206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
The toolset of mass spectrometry (MS) is still expanding, and the number of metal ion complexes researched this way is growing. The Cu(II) ion forms particularly strong peptide complexes of biological interest which are frequent objects of MS studies, but quantitative aspects of some reported results are at odds with those of experiments performed in solution. Cu(II) complexes are usually characterized by fast ligand exchange rates, despite their high affinity, and we speculated that such kinetic lability could be responsible for the observed discrepancies. In order to resolve this issue, we selected peptides belonging to the ATCUN family characterized with high and thoroughly determined Cu(II) binding constants and re-estimated them using two ESI-MS techniques: standard conditions in combination with serial dilution experiments and very mild conditions for competition experiments. The sample acidification, which accompanies the electrospray formation, was simulated with the pH-jump stopped-flow technique. Our results indicate that ESI-MS should not be used for quantitative studies of Cu(II)-peptide complexes because the electrospray formation process compromises the entropic contribution to the complex stability, yielding underestimations of complex stability constants.
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Nikitina MG, Pyreu DF. Thermodynamics of Mixed-Ligand Nickel(II) Complex Formation with Ornithine and Histidine in Aqueous Solutions. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621100120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Ternary Cu(II) Complex with GHK Peptide and Cis-Urocanic Acid as a Potential Physiologically Functional Copper Chelate. Int J Mol Sci 2020; 21:ijms21176190. [PMID: 32867146 PMCID: PMC7503498 DOI: 10.3390/ijms21176190] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 01/06/2023] Open
Abstract
The tripeptide NH2–Gly–His–Lys–COOH (GHK), cis-urocanic acid (cis-UCA) and Cu(II) ions are physiological constituents of the human body and they co-occur (e.g., in the skin and the plasma). While GHK is known as Cu(II)-binding molecule, we found that urocanic acid also coordinates Cu(II) ions. Furthermore, both ligands create ternary Cu(II) complex being probably physiologically functional species. Regarding the natural concentrations of the studied molecules in some human tissues, together with the affinities reported here, we conclude that the ternary complex [GHK][Cu(II)][cis-urocanic acid] may be partly responsible for biological effects of GHK and urocanic acid described in the literature.
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van der Weel L, As KS, Dekker WJ, van den Eijnden L, van Helmond W, Schiphorst C, Hagen WR, Hagedoorn PL. ZraP, the most prominent zinc protein under zinc stress conditions has no direct role in in-vivo zinc tolerance in Escherichia coli. J Inorg Biochem 2019; 192:98-106. [DOI: 10.1016/j.jinorgbio.2018.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/28/2018] [Accepted: 12/21/2018] [Indexed: 10/27/2022]
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6
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Bossak-Ahmad K, Mital M, Płonka D, Drew SC, Bal W. Oligopeptides Generated by Neprilysin Degradation of β-Amyloid Have the Highest Cu(II) Affinity in the Whole Aβ Family. Inorg Chem 2018; 58:932-943. [PMID: 30582328 DOI: 10.1021/acs.inorgchem.8b03051] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The catabolism of β-amyloid (Aβ) is carried out by numerous endopeptidases including neprilysin, which hydrolyzes peptide bonds preceding positions 4, 10, and 12 to yield Aβ4-9 and a minor Aβ12- x species. Alternative processing of the amyloid precursor protein by β-secretase also generates the Aβ11- x species. All these peptides contain a Xxx-Yyy-His sequence, also known as an ATCUN or NTS motif, making them strong chelators of Cu(II) ions. We synthesized the corresponding peptides, Phe-Arg-His-Asp-Ser-Gly-OH (Aβ4-9), Glu-Val-His-His-Gln-Lys-am (Aβ11-16), Val-His-His-Gln-Lys-am (Aβ12-16), and pGlu-Val-His-His-Gln-Lys-am (pAβ11-16), and investigated their Cu(II) binding properties using potentiometry, and UV-vis, circular dichroism, and electron paramagnetic resonance spectroscopies. We found that the three peptides with unmodified N-termini formed square-planar Cu(II) complexes at pH 7.4 with analogous geometries but significantly varied Kd values of 6.6 fM (Aβ4-9), 9.5 fM (Aβ12-16), and 1.8 pM (Aβ11-16). Cyclization of the N-terminal Glu11 residue to the pyroglutamate species pAβ11-16 dramatically reduced the affinity (5.8 nM). The Cu(II) affinities of Aβ4-9 and Aβ12-16 are the highest among the Cu(II) complexes of Aβ peptides. Using fluorescence spectroscopy, we demonstrated that the Cu(II) exchange between the Phe-Arg-His and Val-His-His motifs is very slow, on the order of days. These results are discussed in terms of the relevance of Aβ4-9, a major Cu(II) binding Aβ fragment generated by neprilysin, as a possible Cu(II) carrier in the brain.
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Affiliation(s)
- Karolina Bossak-Ahmad
- Institute of Biochemistry and Biophysics , Polish Academy of Sciences , 02-106 Warsaw , Poland
| | - Mariusz Mital
- Institute of Biochemistry and Biophysics , Polish Academy of Sciences , 02-106 Warsaw , Poland
| | - Dawid Płonka
- Institute of Biochemistry and Biophysics , Polish Academy of Sciences , 02-106 Warsaw , Poland
| | - Simon C Drew
- Institute of Biochemistry and Biophysics , Polish Academy of Sciences , 02-106 Warsaw , Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics , Polish Academy of Sciences , 02-106 Warsaw , Poland
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Gonzalez P, Bossak K, Stefaniak E, Hureau C, Raibauta L, Balc W, Faller P. N-Terminal Cu-Binding Motifs (Xxx-Zzz-His, Xxx-His) and Their Derivatives: Chemistry, Biology and Medicinal Applications. Chemistry 2018; 24:8029-8041. [PMID: 29336493 PMCID: PMC6152890 DOI: 10.1002/chem.201705398] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 12/28/2022]
Abstract
Peptides and proteins with N-terminal amino acid sequences NH2 -Xxx-His (XH) and NH2 -Xxx-Zzz-His (XZH) form well-established high-affinity CuII -complexes. Key examples are Asp-Ala-His (in serum albumin) and Gly-His-Lys, the wound healing factor. This opens a straightforward way to add a high-affinity CuII -binding site to almost any peptide or protein, by chemical or recombinant approaches. Thus, these motifs, NH2 -Xxx-Zzz-His in particular, have been used to equip peptides and proteins with a multitude of functions based on the redox activity of Cu, including nuclease, protease, glycosidase, or oxygen activation properties, useful in anticancer or antimicrobial drugs. More recent research suggests novel biological functions, mainly based on the redox inertness of CuII in XZH, like PET imaging (with 64 Cu), chelation therapies (for instance in Alzheimer's disease and other types of neurodegeneration), antioxidant units, Cu transporters and activation of biological functions by strong CuII binding. This Review gives an overview of the chemical properties of Cu-XH and -XZH motifs and discusses the pros and cons of the vastly different biological applications, and how they could be improved depending on the application.
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Affiliation(s)
- Paulina Gonzalez
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
| | - Karolina Bossak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Ewelina Stefaniak
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Christelle Hureau
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
- CNRS; LCC (Laboratoire de Chimie de Coordination) 205, route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UPS, INPT ; LCC; F-31077 Toulouse, France
| | - Laurent Raibauta
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Wojciech Balc
- Institute of Biochemistry and Biophysics, dediPolish Academy of
Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland
| | - Peter Faller
- Institut de Chimie, UMR 7177,CNRS-Université de Strasbourg 4 rue Blaise Pascal, 67000, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
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8
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Płonka D, Bal W. The N-terminus of hepcidin is a strong and potentially biologically relevant Cu(II) chelator. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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9
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Nagaj J, Stokowa-Sołtys K, Kurowska E, Frączyk T, Jeżowska-Bojczuk M, Bal W. Revised Coordination Model and Stability Constants of Cu(II) Complexes of Tris Buffer. Inorg Chem 2013; 52:13927-33. [DOI: 10.1021/ic401451s] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Justyna Nagaj
- Faculty
of Chemistry, University of Wroclaw, Wroclaw, Poland
| | | | - Ewa Kurowska
- Institute of Biochemistry and Biophysics, Polish Academy
of Sciences, Warsaw, Poland
| | - Tomasz Frączyk
- Institute of Biochemistry and Biophysics, Polish Academy
of Sciences, Warsaw, Poland
| | | | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy
of Sciences, Warsaw, Poland
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10
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Zawisza I, Rózga M, Poznański J, Bal W. Cu(II) complex formation by ACES buffer. J Inorg Biochem 2013; 129:58-61. [DOI: 10.1016/j.jinorgbio.2013.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 08/04/2013] [Accepted: 08/29/2013] [Indexed: 10/26/2022]
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11
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Zawisza I, Rózga M, Bal W. Affinity of copper and zinc ions to proteins and peptides related to neurodegenerative conditions (Aβ, APP, α-synuclein, PrP). Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.012] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Liu Z, Xing Z, Zu Y, Tan S, Zhao L, Zhou Z, Sun T. Synthesis and characterization of L-histidine capped silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.01.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Noorbakhsh A, Salimi A. Development of DNA electrochemical biosensor based on immobilization of ssDNA on the surface of nickel oxide nanoparticles modified glassy carbon electrode. Biosens Bioelectron 2011; 30:188-96. [DOI: 10.1016/j.bios.2011.09.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/08/2011] [Accepted: 09/13/2011] [Indexed: 12/14/2022]
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14
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Knobloch B, Mucha A, Operschall BP, Sigel H, Jeżowska-Bojczuk M, Kozłowski H, Sigel RKO. Stability and structure of mixed-ligand metal ion complexes that contain Ni2+, Cu2+, or Zn2+, and Histamine, as well as adenosine 5'-triphosphate (ATP4-) or uridine 5'-triphosphate (UTP(4-): an intricate network of equilibria. Chemistry 2011; 17:5393-403. [PMID: 21465580 DOI: 10.1002/chem.201001931] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Indexed: 01/22/2023]
Abstract
With a view on protein-nucleic acid interactions in the presence of metal ions we studied the "simple" mixed-ligand model systems containing histamine (Ha), the metal ions Ni(2+), Cu(2+), or Zn(2+) (M(2+)), and the nucleotides adenosine 5'-triphosphate (ATP(4-)) or uridine 5'-triphosphate (UTP(4-)), which will both be referred to as nucleoside 5'-triphosphate (NTP(4-)). The stability constants of the ternary M(NTP)(Ha)(2-) complexes were determined in aqueous solution by potentiometric pH titrations. We show for both ternary-complex types, M(ATP)(Ha)(2-) and M(UTP)(Ha)(2-), that intramolecular stacking between the nucleobase and the imidazole residue occurs and that the stacking intensity is approximately the same for a given M(2+) in both types of complexes: The formation degree of the intramolecular stacks is estimated to be 20 to 50%. Consequently, in protein-nucleic acid interactions imidazole-nucleobase stacks may well be of relevance. Furthermore, the well-known formation of macrochelates in binary M(2+) complexes of purine nucleotides, that is, the phosphate-coordinated M(2+) interacts with N7, is confirmed for the M(ATP)(2-) complexes. It is concluded that upon formation of the mixed-ligand complexes the M(2+)-N7 bond is broken and the energy needed for this process corresponds to the stability differences determined for the M(UTP)(Ha)(2-) and M(ATP)(Ha)(2-) complexes. It is, therefore, possible to calculate from these stability differences of the ternary complexes the formation degrees of the binary macrochelates: The closed forms amount to (65±10)%, (75±8)%, and (31±14) % for Ni(ATP)(2-), Cu(ATP)(2-), and Zn(ATP)(2-), respectively, and these percentages agree excellently with previous results obtained by different methods, confirming thus the internal validity of the data and the arguments used in the evaluation processes. Based on the overall results it is suggested that M(ATP)(2-) species, when bound to an enzyme, may exist in a closed macrochelated form only, if no enzyme groups coordinate directly to the metal ion.
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Affiliation(s)
- Bernd Knobloch
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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15
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Garrido G, Ràfols C, Bosch E. Isothermal titration calorimetry of Ni(II) binding to histidine and to N-2-aminoethylglycine. Talanta 2011; 84:347-54. [DOI: 10.1016/j.talanta.2011.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 12/22/2010] [Accepted: 01/07/2011] [Indexed: 11/29/2022]
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16
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Salimi A, Noorbakhsh A, Semnani A. Immobilization of flavine adenine dinucleotide onto nickel oxide nanostructures modified glassy carbon electrode: fabrication of highly sensitive persulfate sensor. J Solid State Electrochem 2010. [DOI: 10.1007/s10008-010-1221-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Aqueous Equilibrium and Solution Structural Studies of the Interaction of N,N′-bis(4-imidazolymethyl)etylenediamine with Ca(II), Cd(II), Co(II), Cu(II), Mg(II), Mn(II), Ni(II), Pb(II) and Zn(II) Metal Ions. J SOLUTION CHEM 2010. [DOI: 10.1007/s10953-010-9569-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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The pH-specific synthesis, spectroscopic, structural, and magnetic properties of a new Ni(II) species containing the plant physiological binder d-(−)-quinic acid: Association with the aqueous speciation of the binary Ni(II)–quinate system. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.12.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Mucha A, Knobloch B, Jezowska-Bojczuk M, Kozłowski H, Sigel RKO. Comparison of the acid-base properties of ribose and 2'-deoxyribose nucleotides. Chemistry 2008; 14:6663-71. [PMID: 18567033 DOI: 10.1002/chem.200800496] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The extent to which the replacement of a ribose unit by a 2'-deoxyribose unit influences the acid-base properties of nucleotides has not hitherto been determined in detail. In this study, by potentiometric pH titrations in aqueous solution, we have measured the acidity constants of the 5'-di- and 5'-triphosphates of 2'-deoxyguanosine [i.e., of H(2)(dGDP)(-) and H(2)(dGTP)(2-)] as well as of the 5'-mono-, 5'-di-, and 5'-triphosphates of 2'-deoxyadenosine [i.e., of H(2)(dAMP)(+/-), H(2)(dADP)(-), and H(2)(dATP)(2-)]. These 12 acidity constants (of the 56 that are listed) are compared with those of the corresponding ribose derivatives (published data) measured under the same experimental conditions. The results show that all protonation sites in the 2'-deoxynucleotides are more basic than those in their ribose counterparts. The influence of the 2'-OH group is dependent on the number of 5'-phosphate groups as well as on the nature of the purine nucleobase. The basicity of N7 in guanine nucleotides is most significantly enhanced (by about 0.2 pK units), while the effect on the phosphate groups and the N1H or N1H(+) sites is less pronounced but clearly present. In addition, (1)H NMR chemical shift change studies in dependence on pD in D(2)O have been carried out for the dAMP, dADP, and dATP systems, which confirmed the results from the potentiometric pH titrations and showed the nucleotides to be in their anti conformations. Overall, our results are not only of relevance for metal ion binding to nucleotides or nucleic acids, but also constitute an exact basis for the calculation, determination, and understanding of perturbed pK(a) values in DNAzymes and ribozymes, as needed for the delineation of acid-base mechanisms in catalysis.
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Affiliation(s)
- Ariel Mucha
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, Zürich, Switzerland
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20
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Mucha A, Knobloch B, Jezowska-Bojczuk M, Kozłowski H, Sigel RKO. Effect of the ribose versus 2'-deoxyribose residue on the metal ion-binding properties of purine nucleotides. Dalton Trans 2008:5368-77. [PMID: 18827944 DOI: 10.1039/b805911j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction between metal ions and nucleotides is well characterized, as is their importance for metabolic processes, e.g. in the synthesis of nucleic acids. Hence, it is surprising to find that no detailed comparison is available of the metal ion-binding properties between nucleoside 5'-phosphates and 2'-deoxynucleoside 5'-phosphates. Therefore, we have measured here by potentiometric pH titrations the stabilities of several metal ion complexes formed with 2'-deoxyadenosine 5'-monophosphate (dAMP2-), 2'-deoxyadenosine 5'-diphosphate (dADP3-) and 2'-deoxyadenosine 5'-triphosphate (dATP4-). These results are compared with previous data measured under the same conditions and available in the literature for the adenosine 5'-phosphates, AMP(2-), ADP(3-) and ATP(4-), as well as guanosine 5'-monophosphate (GMP(2-)) and 2'-deoxyguanosine 5'-monophosphate (dGMP(2-)). Hence, in total four nucleotide pairs, GMP(2-)/dGMP(2-), AMP(2-)/dAMP(2-), ADP(3-)/dADP(3-) and ATP(4-)/dATP(4-) (= NP/dNP), could be compared for the four metal ions Mg2+, Ni2+, Cu2+ and Zn2+ (= M2+). The comparisons show that complex stability and extent of macrochelate formation between the phosphate-coordinated metal ion and N7 of the purine residue is very similar (or even identical) for the AMP(2-)/dAMP(2-) and ADP(3-)/dADP(3-) pairs. In the case of the complexes formed with ATP(4-)/dATP(4-) the 2'-deoxy complexes are somewhat more stable and show also a slightly enhanced tendency for macrochelate formation. This is different for guanine nucleotides: the stabilities of the M(dGMP) complexes are clearly higher, as are the formation degrees of their macrochelates, than is the case with the M(GMP) complexes. This enhanced complex stability and greater tendency to form macrochelates can be attributed to the enhanced basicity (DeltapKaca. 0.2) of N7 in the 2'-deoxy compound. These results allow general conclusions regarding nucleic acids to be made.
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Affiliation(s)
- Ariel Mucha
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland
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21
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Xu G, Chance MR. Hydroxyl Radical-Mediated Modification of Proteins as Probes for Structural Proteomics. Chem Rev 2007; 107:3514-43. [PMID: 17683160 DOI: 10.1021/cr0682047] [Citation(s) in RCA: 513] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guozhong Xu
- Center for Proteomics, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
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22
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Biological recognition patterns implicated by the formation and stability of ternary metal ion complexes of low-molecular-weight formed with amino acid/peptides and nucleobases/nucleosides. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2007.03.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Bridgewater JD, Lim J, Vachet RW. Transition Metal−Peptide Binding Studied by Metal-Catalyzed Oxidation Reactions and Mass Spectrometry. Anal Chem 2006; 78:2432-8. [PMID: 16579630 DOI: 10.1021/ac051983r] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have identified conditions that allow metal-catalyzed oxidation (MCO) reactions and mass spectrometry (MS) to correctly identify binding sites of first-row transition metal ions to model peptides. This work extends the applicability of the MCO/MS method to metals other than Cu(II). When the appropriate reducing agent (ascorbate, 10 mM) and oxidizing agent concentrations (1 mM persulfate, atmospheric O2, or both) are used, metal-bound amino acids can be sufficiently and specifically oxidized for clear identification by MS. The MCO reactions with Mn(II), Fe(II), Co(II), and Ni(II) occur to lesser extents than with Cu(II), but oxidation is still extensive enough to allow easy identification of the metal-bound residues. With the exception of aspartic acid, the known metal-binding amino acids of angiotensin I and bacitracin A are oxidized, while no oxidation is observed at nonbinding residues. Failure to oxidize aspartic acid is likely due to the relatively slow reactivity of its carboxylic acid side chain with reactive oxygen species, suggesting that the current MCO/MS protocol is transparent to such acidic residues. Overall, this study indicates that, just as is possible for Cu(II), the MCO/MS method should be suitable for determining the Mn(II)-, Fe(II)-, Co(II)-, and Ni(II)-binding sites of metalloproteins.
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Affiliation(s)
- Juma D Bridgewater
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts 01003, USA
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Kaczmarek P, Szczepanik W, Jezowska-Bojczuk M. Acid-base, coordination and oxidative properties of systems containing ATP, L-histidine and Ni(II) ions. Dalton Trans 2005:3653-7. [PMID: 16258616 DOI: 10.1039/b508962j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Potentiometric measurements of ATP-His system proved an existence of five adducts in the solution with stoichiometries ranging from H(5)(ATP)(His) to H(ATP)(His)(4-). Their formation is a consequence of electrostatic interactions only. In the ternary Ni(II)-ATP-His system, two complex species NiH(ATP)(His)(2-) and Ni(ATP)(His)(3-), were found. In the former, stacking interaction between the aromatic moiety of ATP and the imidazole ring of l-histidine is crucial to the adduct stability. All studied systems are able to generate single strand lesions of plasmid DNA in the presence of hydrogen peroxide. However, only binary systems produce linear form of DNA, which is a consequence of the accumulation of the single-stranded breaks.
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Affiliation(s)
- Piotr Kaczmarek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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Shan F, Guo T. Ultrafast selected energy x-ray absorption spectroscopy investigations of Ni and Zn species. J Chem Phys 2005; 122:244710. [PMID: 16035796 DOI: 10.1063/1.1943411] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The results of ultrafast selected energy x-ray absorption spectroscopy (USEXAS) investigations of Ni and Zn species are presented. The USEXAS measurements described here employed characteristic x-ray radiation of L(alpha) and L(beta) from an ultrafast laser-driven W x-ray target to probe the K absorption edges of Ni and Zn, respectively. Static x-ray absorption edge spectra of six Ni and Zn species in either solid or solution form were obtained. Simulations of near-edge x-ray absorption spectra of these Ni and Zn species were carried out with FEFF. The results of USEXAS measurements were in general agreement with the theoretically simulated spectra and those measured with synchrotron x-ray radiation.
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Affiliation(s)
- Fang Shan
- Department of Chemistry, University of California, Davis, 95616, USA
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Kaczmarek P, Jezowska-Bojczuk M, Bal W, Kasprzak KS. Determination of the stability constants and oxidation susceptibility of nickel(II) complexes with 2'-deoxyguanosine 5'-triphosphate and L-histidine. J Inorg Biochem 2005; 99:737-46. [PMID: 15708794 DOI: 10.1016/j.jinorgbio.2004.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2004] [Revised: 11/24/2004] [Accepted: 12/02/2004] [Indexed: 11/17/2022]
Abstract
The formation of binary Ni(II) complexes with 2'-deoxyguanosine 5'-triphosphate (dGTP, L) as well as ternary complexes thereof with L-histidine (His, A) was studied with the use of potentiometry and electronic absorption spectroscopy. In the binary and ternary systems, the complexes with stoichiometries NiH2L-, NiHL2-, NiL3- and NiH2LA2-, NiHLA3-, NiLA4- respectively, were detected. The ternary complexes are very stable at pH 7.4 and thus may constitute biologically relevant Ni(II) carriers in the cell. In the presence of hydrogen peroxide, the binary and ternary systems both generate hydroxyl radical-like species and undergo dGTP degradation with the formation of the 8-oxo-dGTP intermediate. The latter, along with dGTP complexation and degradation, may lead to mutagenesis and carcinogenesis due to base-mispairing properties of 8-oxoguanine and the disturbance in the physiological balance among the four canonical triphosphodeoxynucleotide substrates for DNA synthesis.
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Affiliation(s)
- Piotr Kaczmarek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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