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Role of Nitric Oxide-Derived Metabolites in Reactions of Methylglyoxal with Lysine and Lysine-Rich Protein Leghemoglobin. Int J Mol Sci 2022; 24:ijms24010168. [PMID: 36613614 PMCID: PMC9820652 DOI: 10.3390/ijms24010168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/14/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Carbonyl stress occurs when reactive carbonyl compounds (RCC), such as reducing sugars, dicarbonyls etc., accumulate in the organism. The interaction of RCC carbonyl groups with amino groups of molecules is called the Maillard reaction. One of the most active RCCs is α-dicarbonyl methylglyoxal (MG) that modifies biomolecules forming non-enzymatic glycation products. Organic free radicals are formed in the reaction between MG and lysine or Nα-acetyllysine. S-nitrosothiols and nitric oxide (•NO) donor PAPA NONOate increased the yield of organic free radical intermediates, while other •NO-derived metabolites, namely, nitroxyl anion and dinitrosyl iron complexes (DNICs) decreased it. At the late stages of the Maillard reaction, S-nitrosoglutathione (GSNO) also inhibited the formation of glycation end products (AGEs). The formation of a new type of DNICs, bound with Maillard reaction products, was found. The results obtained were used to explain the glycation features of legume hemoglobin-leghemoglobin (Lb), which is a lysine-rich protein. In Lb, lysine residues can form fluorescent cross-linked AGEs, and •NO-derived metabolites slow down their formation. The knowledge of these processes can be used to increase the stability of Lb. It can help in better understanding the impact of stress factors on legume plants and contribute to the production of recombinant Lb for biotechnology.
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Mishra S, Kumar S, Bhandari A, Das A, Mondal P, Hundal G, Olmstead MM, Patra AK. Reactivity of Nitric Oxide and Nitrosonium Ion with Copper(II/I) Schiff Base Complexes: Mechanistic Aspects of Imine C═N Bond Cleavage and Oxidation of Pyridine-2-aldehyde to Pyridine-2-carboxylic Acid. Inorg Chem 2022; 61:6421-6437. [PMID: 35451813 DOI: 10.1021/acs.inorgchem.1c04038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four Schiff base ligands of the general formulas [6-(R)-2-pyridyl-N-(2'-methylthiophenyl)methylenimine] (RL1) and 6-p-chlorophenyl-2-pyridyl-N-(2'-phenylthiophenyl)methylenimine (RL2), where R = H, Me, p-ClPh, and their bis-ligand copper(II) and copper(I) complexes, 1-4 and 1'-4', respectively, were synthesized and characterized. The reactivities of 1-4 with nitric oxide (NO) gas and of 1'-4' with solid NOBF4 (NO+) were examined in dry acetonitrile in the presence and absence of water (H2O). The results revealed that, in the absence of H2O, complexes 1-4 (or 1'-4') reacts with NO (or NOBF4), leading to imine C═N bond cleavage of both (or one) Schiff base(s) that generates 2 (or 1) equiv of 2-(methyl/phenyl)thiobenzenediazonium perchlorates (5/6) and the corresponding picolaldehyde (RPial) via a copper nitrosyl of a {CuNO}10-type intermediate. In the presence of H2O, the in situ formed RPial get oxidized to the corresponding picolinic acid (RPicH) via an in situ formed LCuIOH intermediate (LCuI + HO-NO → LCuIOH + NO+; L = RL1/RL2/RPic- and νO-H of CuIOH = 3650 cm-1) and subsequently produces, with the aid of NO+ oxidant, the picolinate-ligated copper(II) complexes (i) [(HPic)2Cu] (7), [(MePic)4Cu3(NO3)2]n·H2O (8·H2O), or [(ClPhPic)2Cu] (9) when NO reacts with 1-4 or (ii) [(RPic)CuII(RL1/RL2)]+ when NO+ reacts with 1'-4'. The CuII to CuI reduction of [(RPic)CuII(RL1/RL2)]+ is essential for C═N cleavage of the remaining RL1/RL2 Schiff base; excess NO can do it. The X-ray structures (1, 1', 3', 5, 7, and 8) and spectroscopic results revealed the role of CuII/I, NO, NO+, and H2O, shedding light on the mechanism of C═N bond cleavage and the oxidation of pyridine-2-aldehyde to pyridine-2-carboxylic acid. The reaction of 1 with 15NO revealed that the terminal N of the N2+ group of 5 originates from 15NO [ν14N14N- = 2248 cm-1 and ν15N14N- = 2212 cm-1].
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Affiliation(s)
- Saikat Mishra
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
| | - Shibaditya Kumar
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
| | - Anirban Bhandari
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
| | - Aniruddha Das
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
| | - Pallav Mondal
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
| | - Geeta Hundal
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Marilyn M Olmstead
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Apurba K Patra
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, West Bengal, India
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High-spin bis[(S or R)-N-1-(Ar)ethyl-salicylaldiminato-κ2N,O]-Λ/Δ-iron(II): Combined studies of syntheses, spectroscopy, diastereoselection, electrochemistry, paramagnetic, thermal, PXRD and DFT/TDDFT. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Finelli A, Chabert V, Hérault N, Crochet A, Kim C, Fromm KM. Sequential Multiple-Target Sensor: In3+, Fe2+, and Fe3+ Discrimination by an Anthracene-Based Probe. Inorg Chem 2019; 58:13796-13806. [DOI: 10.1021/acs.inorgchem.9b01478] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alba Finelli
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Valentin Chabert
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Nelly Hérault
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Aurélien Crochet
- FriMat, Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Cheal Kim
- Department of Fine Chemistry, Seoul National University of Science and Technology (SeoulTech), Seoul 139-743, Republic of Korea
| | - Katharina M. Fromm
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
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