1
|
Dalla Tiezza M, Bickelhaupt FM, Flohé L, Maiorino M, Ursini F, Orian L. A dual attack on the peroxide bond. The common principle of peroxidatic cysteine or selenocysteine residues. Redox Biol 2020; 34:101540. [PMID: 32428845 PMCID: PMC7231847 DOI: 10.1016/j.redox.2020.101540] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/01/2020] [Accepted: 04/08/2020] [Indexed: 01/07/2023] Open
Abstract
The (seleno)cysteine residues in some protein families react with hydroperoxides with rate constants far beyond those of fully dissociated low molecular weight thiol or selenol compounds. In case of the glutathione peroxidases, we could demonstrate that high rate constants are achieved by a proton transfer from the chalcogenol to a residue of the active site [Orian et al. Free Radic. Biol. Med. 87 (2015)]. We extended this study to three more protein families (OxyR, GAPDH and Prx). According to DFT calculations, a proton transfer from the active site chalcogenol to a residue within the active site is a prerequisite for both, creating a chalcogenolate that attacks one oxygen of the hydroperoxide substrate and combining the delocalized proton with the remaining OH or OR, respectively, to create an ideal leaving group. The “parking postions” of the delocalized proton differ between the protein families. It is the ring nitrogen of tryptophan in GPx, a histidine in GAPDH and OxyR and a threonine in Prx. The basic principle, however, is common to all four families of proteins. We, thus, conclude that the principle outlined in this investigation offers a convincing explanation for how a cysteine residue can become peroxidatic. In some protein families, (seleno)cysteine residues react with hydroperoxides with very high rate constants. In GPx, DFT models of the oxidation of the catalytic site support a two-step mechanism for the H2O2 reduction. This mechanism is here found to operate in other thiol-based enzymes, i.e. OxyR, GAPDH and Prx.
Collapse
Affiliation(s)
- M Dalla Tiezza
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padova, Italy
| | - F M Bickelhaupt
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, the Netherlands; Institute for Molecules and Materials (IMM), Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, the Netherlands
| | - L Flohé
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, V.le G. Colombo 3, 35121, Padova, Italy; Departamento de Bioquímica, Universidad de la República, Avda. General Flores 2125, 11800, Montevideo, Uruguay
| | - M Maiorino
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, V.le G. Colombo 3, 35121, Padova, Italy
| | - F Ursini
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, V.le G. Colombo 3, 35121, Padova, Italy
| | - L Orian
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padova, Italy.
| |
Collapse
|
2
|
Ahn SH, Yang HY, Tran GB, Kwon J, Son KY, Kim S, Dinh QT, Jung S, Lee HM, Cho KO, Lee TH. Interaction of peroxiredoxin V with dihydrolipoamide branched chain transacylase E2 (DBT) in mouse kidney under hypoxia. Proteome Sci 2015; 13:4. [PMID: 25670924 PMCID: PMC4323032 DOI: 10.1186/s12953-014-0061-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/23/2014] [Indexed: 11/28/2022] Open
Abstract
Background Peroxiredoxin V (Prdx V) plays a major role in preventing oxidative damage as an effective antioxidant protein within a variety of cells through peroxidase activity. However, the function of Prdx V is not limited to peroxidase enzymatic activity per se. It appears to have unique function in regulating cellular response to external stimuli by directing interaction with signaling protein. In this study, we identified Prdx V interacting partners in mouse kidney under hypoxic stress using immunoprecipitation and shotgun proteomic analysis (LC-MS/MS). Results Immunoprecipitation coupled with nano-UPLC-MSE shotgun proteomics was employed to identify putative interacting partners of Prdx V in mouse kidney in the setting of hypoxia. A total of 17 proteins were identified as potential interacting partners of Prdx V by a comparative interactomics analysis in kidney under normoxia versus hypoxia. Dihydrolipoamide branched chain transacylase E2 (DBT) appeared to be a prominent candidate protein displaying enhanced interaction with Prdx V under hypoxic stress. Moreover, hypoxic kidney exhibited altered DBT enzymatic activity compared to normoxia. An enhanced colocalization of these two proteins under hypoxic stress was successfully observed in vitro. Furthermore, peroxidatic cysteine residue (Cys48) of Prdx V is likely to be responsible for interacting with DBT. Conclusions We identified several proteins interacting with Prdx V under hypoxic condition known to induce renal oxidative stress. In hypoxic condition, we observed an enhanced interaction of Prdx V and DBT protein as well as increased DBT enzymatic activity. The results from this study will contribute to enhance our understanding of Prdx V’s role in hypoxic stress and may suggest new directions for future research. Electronic supplementary material The online version of this article (doi:10.1186/s12953-014-0061-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Sun Hee Ahn
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Gia Buu Tran
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Kyu-Yeol Son
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Suhee Kim
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Quoc Thuong Dinh
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Ha-Mi Lee
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea.,Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| |
Collapse
|