1
|
He Y, Takei T, Moroder L, Hojo H. Unexpected diselenide metathesis in selenocysteine-substituted biologically active peptides. Org Biomol Chem 2024. [PMID: 39028035 DOI: 10.1039/d4ob00921e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Substitution of disulfide bonds with a diselenide bonds in peptides and proteins is an often-used strategy to increase the stability of naturally occurring peptides and proteins. In this paper, diselenide metathesis between model diselenide dimer peptides, as well as that in diselenide(s)-substituted biologically active peptides, were analyzed. Surprisingly, depending on the tertiary structure of the peptides, we observed that the metathesis reaction occurs under physiological conditions even in the absence of reducing agents, light and heating.
Collapse
Affiliation(s)
- Ying He
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
| | - Toshiki Takei
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
| | - Luis Moroder
- Max-Planck-Institute of Biochemistry, Martinsried 82152, Germany
| | - Hironobu Hojo
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
| |
Collapse
|
2
|
Bombana A, Shanmugam M, Collison D, Kibler AJ, Newton GN, Jäger CM, Croft AK, Morra S, Mitchell NJ. Application of a Synthetic Ferredoxin-Inspired [4Fe4S]-Peptide Maquette as the Redox Partner for an [FeFe]-Hydrogenase. Chembiochem 2023; 24:e202300250. [PMID: 37391388 PMCID: PMC10946529 DOI: 10.1002/cbic.202300250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/24/2023] [Accepted: 06/28/2023] [Indexed: 07/02/2023]
Abstract
'Bacterial-type' ferredoxins host a cubane [4Fe4S]2+/+ cluster that enables these proteins to mediate electron transfer and facilitate a broad range of biological processes. Peptide maquettes based on the conserved cluster-forming motif have previously been reported and used to model the ferredoxins. Herein we explore the integration of a [4Fe4S]-peptide maquette into a H2 -powered electron transport chain. While routinely formed under anaerobic conditions, we illustrate by electron paramagnetic resonance (EPR) analysis that these maquettes can be reconstituted under aerobic conditions by using photoactivated NADH to reduce the cluster at 240 K. Attempts to tune the redox properties of the iron-sulfur cluster by introducing an Fe-coordinating selenocysteine residue were also explored. To demonstrate the integration of these artificial metalloproteins into a semi-synthetic electron transport chain, we utilize a ferredoxin-inspired [4Fe4S]-peptide maquette as the redox partner in the hydrogenase-mediated oxidation of H2 .
Collapse
Affiliation(s)
- Andrea Bombana
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Muralidharan Shanmugam
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - David Collison
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Alexander J Kibler
- The GlaxoSmithKline Carbon Neutral Labs for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK
| | - Graham N Newton
- The GlaxoSmithKline Carbon Neutral Labs for Sustainable Chemistry, University of Nottingham Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK
| | - Christof M Jäger
- Data Science and Modelling, Pharmaceutical Sciences, R&D, AstraZeneca Gothenburg, Pepparedsleden 1, 431 83, Mölndal, Sweden
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Anna K Croft
- Department of Chemical Engineering, School of AACME, Loughborough University, Loughborough, LE11 3TU, UK
| | - Simone Morra
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Nicholas J Mitchell
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| |
Collapse
|
3
|
Marvelous C, de Azevedo Santos L, Siegler MA, Fonseca Guerra C, Bouwman E. Redox Conversion of Cobalt(II)‐Diselenide to Cobalt(III)‐Selenolate Compounds: Comparison with Their Sulfur Analogs. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christian Marvelous
- Leiden Institute of Chemistry Leiden University P.O. Box 9502 2300 RA Leiden, The Netherlands
| | - Lucas de Azevedo Santos
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modelling (ACMM) Vrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam, The Netherlands
| | - Maxime A. Siegler
- Department of Chemistry Johns Hopkins University 3400 N. Charles Street Baltimore Maryland 21218 United States
| | - Célia Fonseca Guerra
- Leiden Institute of Chemistry Leiden University P.O. Box 9502 2300 RA Leiden, The Netherlands
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modelling (ACMM) Vrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam, The Netherlands
| | - Elisabeth Bouwman
- Leiden Institute of Chemistry Leiden University P.O. Box 9502 2300 RA Leiden, The Netherlands
| |
Collapse
|
4
|
Liao P, Liu H, He C. Chemical synthesis of human selenoprotein F and elucidation of its thiol-disulfide oxidoreductase activity. Chem Sci 2022; 13:6322-6327. [PMID: 35733894 PMCID: PMC9159075 DOI: 10.1039/d2sc00492e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/06/2022] [Indexed: 01/16/2023] Open
Abstract
Selenoprotein F (SelF) is an endoplasmic reticulum-residing eukaryotic protein that contains a selenocysteine (Sec) residue. It has been suggested to be involved in a number of physiological processes by acting as a thiol-disulfide oxidoreductase, but the exact role has remained unclear due to the lack of a reliable production method. We document herein a robust synthesis of the human SelF through a three-segment two-ligation semisynthesis strategy. Highlighted in this synthetic route are the use of a mild desulfurization process to protect the side-chain of the Sec residue from being affected and the simultaneous removal of acetamidomethyl and p-methoxybenzyl protection groups by PdCl2, thus facilitating the synthesis of multi-milligrams of homogenous SelF. The reduction potential of SelF was determined and the thiol-disulfide oxidoreductase activity was further supported by its ability to catalyze the reduction and isomerization of disulfide bonds.
Collapse
Affiliation(s)
- Peisi Liao
- School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou 510640 China
| | - Hongmei Liu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology Wuhan 430074 China
- Shenzhen Huazhong University of Science and Technology Research Institute Shenzhen 518057 China
| | - Chunmao He
- School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou 510640 China
| |
Collapse
|
5
|
Batabyal M, Upadhyay A, Kadu R, Birudukota NC, Chopra D, Kumar S. Tetravalent Spiroselenurane Catalysts: Intramolecular Se···N Chalcogen Bond-Driven Catalytic Disproportionation of H 2O 2 to H 2O and O 2 and Activation of I 2 and NBS. Inorg Chem 2022; 61:8729-8745. [PMID: 35638247 DOI: 10.1021/acs.inorgchem.2c00651] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chalcogen-bonding interactions have recently gained considerable attention in the field of synthetic chemistry, structure, and bonding. Here, three organo-spiroselenuranes, having a Se(IV) center with a strong intramolecular Se···N chalcogen-bonded interaction, have been isolated by the oxidation of the respective bis(2-benzamide) selenides derived from an 8-aminoquinoline ligand. Further, the synthesized spiroselenuranes, when assayed for their antioxidant activity, show disproportionation of hydrogen peroxide into H2O and O2 with first-order kinetics with respect to H2O2 for the first time by any organoselenium molecules as monitored by 1H NMR spectroscopy. Electron-donating 5-methylthio-benzamide ring-substituted spiroselenurane disproportionates hydrogen peroxide at a high rate of 15.6 ± 0.4 × 103 μM min-1 with a rate constant of 8.57 ± 0.50 × 10-3 s-1, whereas 5-methoxy and unsubstituted-benzamide spiroselenuranes catalyzed the disproportionation of H2O2 at rates of 7.9 ± 0.3 × 103 and 2.9 ± 0.3 × 103 μM min-1 with rate constants of 1.16 ± 0.02 × 10-3 and 0.325 ± 0.025 × 10-3 s-1, respectively. The evolved oxygen gas from the spiroselenurane-catalyzed disproportion of H2O2 has also been confirmed by a gas chromatograph-thermal conductivity detector (GCTCD) and a portable digital polarographic dissolved O2 probe. Additionally, the synthesized spiroselenuranes exhibit thiol peroxidase antioxidant activities for the reduction of H2O2 by a benzenethiol co-reductant monitored by UV-visible spectroscopy. Next, the Se···N bonded spiroselenuranes have been explored as catalysts in synthetic oxidation iodolactonization and bromination of arenes. The synthesized spiroselenurane has activated I2 toward the iodolactonization of alkenoic acids under base-free conditions. Similarly, efficient chemo- and regioselective monobromination of various arenes with NBS catalyzed by chalcogen-bonded synthesized spiroselenuranes has been achieved. Mechanistic insight into the spiroselenuranes in oxidation reactions has been gained by 77Se NMR, mass spectrometry, UV-visible spectroscopy, single-crystal X-ray structure, and theoretical (DFT, NBO, and AIM) studies. It seems that the highly electrophilic nature of the selenium center is attributed to the presence of an intramolecular Se···N interaction and a vacant coordination site in spiroselenuranes is crucial for the activation of H2O2, I2, and NBS. The reaction of H2O2, I2, and NBS with tetravalent spiroselenurane would lead to an octahedral-Se(VI) intermediate, which is reduced back to Se(IV) due to thermodynamic instability of selenium in its highest oxidation state and the presence of a strong intramolecular N-donor atom.
Collapse
Affiliation(s)
- Monojit Batabyal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Aditya Upadhyay
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Rahul Kadu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India.,MIT School of Engineering, MIT Art, Design and Technology University Pune, Loni Kalbhor, Maharashtra 412201, India
| | - Nihal Chaitanya Birudukota
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| |
Collapse
|