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Tumilovich A, Yablokov E, Mezentsev Y, Ershov P, Basina V, Gnedenko O, Kaluzhskiy L, Tsybruk T, Grabovec I, Kisel M, Shabunya P, Soloveva N, Vavilov N, Gilep A, Ivanov A. The Multienzyme Complex Nature of Dehydroepiandrosterone Sulfate Biosynthesis. Int J Mol Sci 2024; 25:2072. [PMID: 38396748 PMCID: PMC10889563 DOI: 10.3390/ijms25042072] [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: 12/12/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Dehydroepiandrosterone (DHEA), a precursor of steroid sex hormones, is synthesized by steroid 17-alpha-hydroxylase/17,20-lyase (CYP17A1) with the participation of microsomal cytochrome b5 (CYB5A) and cytochrome P450 reductase (CPR), followed by sulfation by two cytosolic sulfotransferases, SULT1E1 and SULT2A1, for storage and transport to tissues in which its synthesis is not available. The involvement of CYP17A1 and SULTs in these successive reactions led us to consider the possible interaction of SULTs with DHEA-producing CYP17A1 and its redox partners. Text mining analysis, protein-protein network analysis, and gene co-expression analysis were performed to determine the relationships between SULTs and microsomal CYP isoforms. For the first time, using surface plasmon resonance, we detected interactions between CYP17A1 and SULT2A1 or SULT1E1. SULTs also interacted with CYB5A and CPR. The interaction parameters of SULT2A1/CYP17A1 and SULT2A1/CYB5A complexes seemed to be modulated by 3'-phosphoadenosine-5'-phosphosulfate (PAPS). Affinity purification, combined with mass spectrometry (AP-MS), allowed us to identify a spectrum of SULT1E1 potential protein partners, including CYB5A. We showed that the enzymatic activity of SULTs increased in the presence of only CYP17A1 or CYP17A1 and CYB5A mixture. The structures of CYP17A1/SULT1E1 and CYB5A/SULT1E1 complexes were predicted. Our data provide novel fundamental information about the organization of microsomal CYP-dependent macromolecular complexes.
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Affiliation(s)
- Anastasiya Tumilovich
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
| | - Evgeniy Yablokov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Yuri Mezentsev
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Pavel Ershov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Viktoriia Basina
- Research Centre for Medical Genetics, 1 Moskvorechye Street, 115522 Moscow, Russia;
| | - Oksana Gnedenko
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Leonid Kaluzhskiy
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Tatsiana Tsybruk
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
| | - Irina Grabovec
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
| | - Maryia Kisel
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
| | - Polina Shabunya
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
| | - Natalia Soloveva
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Nikita Vavilov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Andrei Gilep
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.T.); (T.T.); (I.G.); (M.K.); (P.S.); (A.G.)
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
| | - Alexis Ivanov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia; (E.Y.); (P.E.); (O.G.); (L.K.); (N.S.); (N.V.); (A.I.)
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Kuzikov AV, Masamrekh RA, Filippova TA, Tumilovich AM, Strushkevich NV, Gilep AA, Khudoklinova YY, Shumyantseva VV. Bielectrode Strategy for Determination of CYP2E1 Catalytic Activity: Electrodes with Bactosomes and Voltammetric Determination of 6-Hydroxychlorzoxazone. Biomedicines 2024; 12:152. [PMID: 38255257 PMCID: PMC10812958 DOI: 10.3390/biomedicines12010152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/26/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
We describe a bielectrode system for evaluation of the electrocatalytic activity of cytochrome P450 2E1 (CYP2E1) towards chlorzoxazone. One electrode of the system was employed to immobilize Bactosomes with human CYP2E1, cytochrome P450 reductase (CPR), and cytochrome b5 (cyt b5). The second electrode was used to quantify CYP2E1-produced 6-hydroxychlorzoxazone by its direct electrochemical oxidation, registered using square-wave voltammetry. Using this system, we determined the steady-state kinetic parameters of chlorzoxazone hydroxylation by CYP2E1 of Bactosomes immobilized on the electrode: the maximal reaction rate (Vmax) was 1.64 ± 0.08 min-1, and the Michaelis constant (KM) was 78 ± 9 μM. We studied the electrochemical characteristics of immobilized Bactosomes and have revealed that electron transfer from the electrode occurs both to the flavin prosthetic groups of CPR and the heme iron ions of CYP2E1 and cyt b5. Additionally, it has been demonstrated that CPR has the capacity to activate CYP2E1 electrocatalytic activity towards chlorzoxazone, likely through intermolecular electron transfer from the electrochemically reduced form of CPR to the CYP2E1 heme iron ion.
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Affiliation(s)
- Alexey V. Kuzikov
- Institute of Biomedical Chemistry, 10, Pogodinskaya Street, 119121 Moscow, Russia; (R.A.M.); (T.A.F.); (A.A.G.); (V.V.S.)
- Department of Biochemistry, Faculty of Biomedicine, Pirogov Russian National Research Medical University, 1, Ostrovityanova Street, 117997 Moscow, Russia;
| | - Rami A. Masamrekh
- Institute of Biomedical Chemistry, 10, Pogodinskaya Street, 119121 Moscow, Russia; (R.A.M.); (T.A.F.); (A.A.G.); (V.V.S.)
- Department of Biochemistry, Faculty of Biomedicine, Pirogov Russian National Research Medical University, 1, Ostrovityanova Street, 117997 Moscow, Russia;
| | - Tatiana A. Filippova
- Institute of Biomedical Chemistry, 10, Pogodinskaya Street, 119121 Moscow, Russia; (R.A.M.); (T.A.F.); (A.A.G.); (V.V.S.)
- Department of Biochemistry, Faculty of Biomedicine, Pirogov Russian National Research Medical University, 1, Ostrovityanova Street, 117997 Moscow, Russia;
| | - Anastasiya M. Tumilovich
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220084 Minsk, Belarus; (A.M.T.); (N.V.S.)
| | - Natallia V. Strushkevich
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220084 Minsk, Belarus; (A.M.T.); (N.V.S.)
| | - Andrei A. Gilep
- Institute of Biomedical Chemistry, 10, Pogodinskaya Street, 119121 Moscow, Russia; (R.A.M.); (T.A.F.); (A.A.G.); (V.V.S.)
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220084 Minsk, Belarus; (A.M.T.); (N.V.S.)
| | - Yulia Yu. Khudoklinova
- Department of Biochemistry, Faculty of Biomedicine, Pirogov Russian National Research Medical University, 1, Ostrovityanova Street, 117997 Moscow, Russia;
| | - Victoria V. Shumyantseva
- Institute of Biomedical Chemistry, 10, Pogodinskaya Street, 119121 Moscow, Russia; (R.A.M.); (T.A.F.); (A.A.G.); (V.V.S.)
- Department of Biochemistry, Faculty of Biomedicine, Pirogov Russian National Research Medical University, 1, Ostrovityanova Street, 117997 Moscow, Russia;
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Ji Y, Li R, Tian Y, Chen G, Yan A. Classification models and SAR analysis on thromboxane A 2 synthase inhibitors by machine learning methods. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2022; 33:429-462. [PMID: 35678125 DOI: 10.1080/1062936x.2022.2078880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
Thromboxane A2 synthase (TXS) is a promising drug target for cardiovascular diseases and cancer. In this work, we conducted a structure-activity relationship (SAR) study on 526 TXS inhibitors for bioactivity prediction. Three types of descriptors (MACCS fingerprints, ECFP4 fingerprints, and MOE descriptors) were utilized to characterize inhibitors, 24 classification models were developed by support vector machine (SVM), random forest (RF), extreme gradient boosting (XGBoost), and deep neural networks (DNN). Then we reduced the number of fingerprints according to the contribution of descriptors to the models, and constructed 16 extra models on simplified fingerprints. In general, Model_4D built by DNN algorithm and 67 bits MACCS fingerprints performs best. The prediction accuracy of the model on the test set is 0.969, and Matthews correlation coefficient (MCC) is 0.936. The distance between compound and model (dSTD-PRO) was used to characterize the application domain of the model. In the test set of Model_4D, dSTD-PRO of 91.5% compounds is lower than the corresponding training set threshold (threshold0.90 = 0.1055), and the accuracy of these compounds is 0.983. In addition, the important descriptors were summarized and further analyzed. It showed that aromatic nitrogenous heterocyclic groups were beneficial to improve the bioactivity of TXS inhibitors.
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Affiliation(s)
- Y Ji
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing, P. R. China
| | - R Li
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Y Tian
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing, P. R. China
| | - G Chen
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - A Yan
- State Key Laboratory of Chemical Resource Engineering, Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing, P. R. China
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Ershov P, Kaluzhskiy L, Mezentsev Y, Yablokov E, Gnedenko O, Ivanov A. Enzymes in the Cholesterol Synthesis Pathway: Interactomics in the Cancer Context. Biomedicines 2021; 9:biomedicines9080895. [PMID: 34440098 PMCID: PMC8389681 DOI: 10.3390/biomedicines9080895] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 02/06/2023] Open
Abstract
A global protein interactome ensures the maintenance of regulatory, signaling and structural processes in cells, but at the same time, aberrations in the repertoire of protein-protein interactions usually cause a disease onset. Many metabolic enzymes catalyze multistage transformation of cholesterol precursors in the cholesterol biosynthesis pathway. Cancer-associated deregulation of these enzymes through various molecular mechanisms results in pathological cholesterol accumulation (its precursors) which can be disease risk factors. This work is aimed at systematization and bioinformatic analysis of the available interactomics data on seventeen enzymes in the cholesterol pathway, encoded by HMGCR, MVK, PMVK, MVD, FDPS, FDFT1, SQLE, LSS, DHCR24, CYP51A1, TM7SF2, MSMO1, NSDHL, HSD17B7, EBP, SC5D, DHCR7 genes. The spectrum of 165 unique and 21 common protein partners that physically interact with target enzymes was selected from several interatomic resources. Among them there were 47 modifying proteins from different protein kinases/phosphatases and ubiquitin-protein ligases/deubiquitinases families. A literature search, enrichment and gene co-expression analysis showed that about a quarter of the identified protein partners was associated with cancer hallmarks and over-represented in cancer pathways. Our results allow to update the current fundamental view on protein-protein interactions and regulatory aspects of the cholesterol synthesis enzymes and annotate of their sub-interactomes in term of possible involvement in cancers that will contribute to prioritization of protein targets for future drug development.
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Ershov PV, Yablokov E, Zgoda V, Mezentsev Y, Gnedenko O, Kaluzhskiy L, Svirid A, Gilep A, Usanov SA, Ivanov A. A new insight into subinteractomes of functional antagonists: Thromboxane (CYP5A1) and prostacyclin (CYP8A1) synthases. Cell Biol Int 2021; 45:1175-1182. [PMID: 33527589 DOI: 10.1002/cbin.11564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 11/10/2020] [Accepted: 01/31/2021] [Indexed: 12/14/2022]
Abstract
The current article aims to summarize all possible spectrum of protein-protein interactions for thromboxane A synthase (CYP5A1) and prostacyclin synthase (CYP8A1). These enzymes metabolize the same substrate (prostaglandin H2 ) and can participate in cardiovascular, inflammatory, immune processes, and apoptosis modulation, as well as significantly influence the risk of cancers. Binary protein-protein and multiprotein complexes are of great importance in enzyme-regulating and signal-transduction pathways. However, protein partners of CYP5A1 and CYP8A1 are not yet fully identified, although both synthases are considered as prospective drug targets. At least 36 novel protein partners of CYP5A1 and CYP8A1 were revealed from different tissue types using an approach based on affinity isolation and mass spectrometry. Enrichment analysis showed that these proteins have different molecular functions: folding (refolding), unfolded protein and chaperon binding, protein transport (export/import), posttranslational modification, protein domain-specific binding, antioxidant activity, and glutathione homeostasis. A significant part of them, belonging to molecular chaperones, were common partners for CYP5A1 and CYP8A1, while other proteins were unique with the tissue-dependent distribution. New aspects of CYP5A1 and CYP8A1 interactomics and hetero-complex formation with different protein partners, including cytochrome P450s are discussed.
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Affiliation(s)
- Pavel V Ershov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia.,Federal State Budgetary Institution, Centre for Strategic Planning and Management of Biomedical Health Risks, The Federal Medical Biological Agency, Moscow, Russia
| | - Evgeniy Yablokov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
| | - Victor Zgoda
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
| | - Yuri Mezentsev
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
| | - Oksana Gnedenko
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
| | - Leonid Kaluzhskiy
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
| | - Andrey Svirid
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
| | - Andrei Gilep
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
| | - Sergey A Usanov
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
| | - Alexis Ivanov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", Moscow, Russia
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Ershov PV, Veselovsky AV, Mezentsev YV, Yablokov EO, Kaluzhskiy LA, Tumilovich AM, Kavaleuski AA, Gilep AA, Moskovkina TV, Medvedev AE, Ivanov AS. Mechanism of the Affinity-Enhancing Effect of Isatin on Human Ferrochelatase and Adrenodoxin Reductase Complex Formation: Implication for Protein Interactome Regulation. Int J Mol Sci 2020; 21:E7605. [PMID: 33066693 PMCID: PMC7593955 DOI: 10.3390/ijms21207605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 02/04/2023] Open
Abstract
Isatin (indole-2, 3-dione) is a non-peptide endogenous bioregulator exhibiting a wide spectrum of biological activity, realized in the cell via interactions with numerous isatin-binding proteins, their complexes, and (sub) interactomes. There is increasing evidence that isatin may be involved in the regulation of complex formations by modulating the affinity of the interacting protein partners. Recently, using Surface Plasmon Resonance (SPR) analysis, we have found that isatin in a concentration dependent manner increased interaction between two human mitochondrial proteins, ferrochelatase (FECH), and adrenodoxine reductase (ADR). In this study, we have investigated the affinity-enhancing effect of isatin on the FECH/ADR interaction. The SPR analysis has shown that FECH forms not only homodimers, but also FECH/ADR heterodimers. The affinity-enhancing effect of isatin on the FECH/ADR interaction was highly specific and was not reproduced by structural analogues of isatin. Bioinformatic analysis performed using three dimensional (3D) models of the interacting proteins and in silico molecular docking revealed the most probable mechanism involving FECH/isatin/ADR ternary complex formation. In this complex, isatin is targeted to the interface of interacting FECH and ADR monomers, forming hydrogen bonds with both FECH and ADR. This is a new regulatory mechanism by which isatin can modulate protein-protein interactions (PPI).
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Affiliation(s)
- Pavel V. Ershov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Alexander V. Veselovsky
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Yuri V. Mezentsev
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Evgeniy O. Yablokov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Leonid A. Kaluzhskiy
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Anastasiya M. Tumilovich
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.M.T.); (A.A.K.); (A.A.G.)
| | - Anton A. Kavaleuski
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.M.T.); (A.A.K.); (A.A.G.)
| | - Andrei A. Gilep
- Institute of Bioorganic Chemistry NASB, 5 Building 2, V.F. Kuprevich Street, 220141 Minsk, Belarus; (A.M.T.); (A.A.K.); (A.A.G.)
| | - Taisiya V. Moskovkina
- Far East Federal University, FEFU Campus, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia;
| | - Alexei E. Medvedev
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
| | - Alexis S. Ivanov
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 140006 Moscow, Russia; (A.V.V.); (Y.V.M.); (E.O.Y.); (L.A.K.); (A.E.M.); (A.S.I.)
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Kuzikov A, Masamrekh R, Ershov P, Mezentsev Y, Ivanov A, Gilep A, Usanov S, Shumyantseva V. Interaction of Isatin with Cytochrome P450 Isoenzymes: Investigation by Means of Spectral and Electrochemical Methods The role of Isatin in Cytochromes P450 Ligand-Protein Binding Events. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00707-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ershov PV, Yablokov ЕO, Florinskaya AV, Mezentsev YV, Kaluzhskiy LА, Tumilovich AM, Gilep АА, Usanov SA, Ivanov АS. SPR-Based study of affinity of cytochrome P450s / redox partners interactions modulated by steroidal substrates. J Steroid Biochem Mol Biol 2019; 187:124-129. [PMID: 30468857 DOI: 10.1016/j.jsbmb.2018.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/26/2018] [Accepted: 11/19/2018] [Indexed: 11/29/2022]
Abstract
The goal of this work was to test the hypothesis that the affinity of protein-protein interactions in the cytochrome P450-dependent monooxygenase system is modulated by the low-molecular-weight compounds (substrates or inhibitors). The surface plasmon resonance (SPR) based study was carried out using the recombinant protein preparations of three microsomal cytochromes P450 (CYP17A1, CYP21A2, and CYP2C19) and their redox partners: cytochrome b5 (CYB5A), NADPH - cytochrome P450 reductase (CPR), and also iron-sulfur protein adrenodoxin (Adx). As a result, we have revealed some specificity of the influence of the steroid substrates on the binding affinity of CYPs with their redox partners, namely: the lack of effect on CPR/CYPs and Adx/CYP complex formation, and a significant effect on interactions between CYB5A and steroidogenic CYPs. The equilibrium dissociation constant (Kd) value of the CYB5A/CYP17A1 complex decreased by 5 times in the presence of progesterone (P4), which was due to a 10 times increase in the association rate constant (kon). In this case, a twofold increase in the dissociation rate constant (koff) value of CYB5A/CYP17A1 complex formation was observed. It was also demonstrated that the affinity of CYB5A/CYP17A1 interaction increased in the presence of two other steroidal substrates 17α-hydroxyprogesterone and pregnenolone and that effect was comparable with P4. In contrast, only the twofold decrease in the affinity of CYB5A/CYP21A2 interaction in the presence of P4 was caused by a slight increase in the koff value (the kon value of the complex did not change). This indicates a different format of the steroidal substrates effects expressed in a change in the stability of the CYB5A/CYPs complexes. Thus, it was found that P4 modulated the both kinetic and equilibrium constants of CYB5A/CYP17A1 and CYB5/CYP21A2 complex formation and complexes, while not affecting the CYB5A/CYP2C19 interaction (2C19 is the cytochrome P450 isoenzyme possessing broad substrate specificity), thereby indicating a specific influence of steroidal substrates on interactions involving steroidogenic CYPs. Our results are consistent with current understanding of the role of CYB5A as a regulator of cytochrome P450 activity in P450-dependent monooxygenase system.
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Affiliation(s)
- P V Ershov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia.
| | - Е O Yablokov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - A V Florinskaya
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - Yu V Mezentsev
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - L А Kaluzhskiy
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - A M Tumilovich
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - А А Gilep
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia; Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - S A Usanov
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - А S Ivanov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
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Gnedenko O, Yablokov E, Ershov P, Svirid A, Shkel T, Haidukevich I, Strushkevich N, Gilep A, Usanov S, Ivanov A. Interaction of prostacyclin synthase with cytochromes P450. ACTA ACUST UNITED AC 2019; 65:63-66. [DOI: 10.18097/pbmc20196501063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Biosensor experiments on investigation of interaction between prostacyclin synthase (PGIS) and different proteins of the cytochrome P450 monooxygenase systems were perfomed. Interaction of PGIS with microsomal (CYP21A2, CYP2E1) and mitochondrial (CYP27A1, CYP11B1, CYP11B2, CYP11A1) cytochrome P450s was detected. Kinetic and equilibrium parameters of protein complexes formation were determined. Data obtained suggest an essential role of these hemoproteins interaction in regulation of prostacyclin and thromboxane A2 biosynthesis.
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Affiliation(s)
| | | | - P.V. Ershov
- Institute of Biomedical Chemistry, Moscow, Russia
| | - A.V. Svirid
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - T.V. Shkel
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - I.V. Haidukevich
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - N.V. Strushkevich
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - A.A. Gilep
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - S.A. Usanov
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, Minsk, Belarus
| | - A.S. Ivanov
- Institute of Biomedical Chemistry, Moscow, Russia
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10
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Ershov PV, Mezentsev YV, Yablokov EO, Kalushskiy LA, Florinskaya AV, Svirid AV, Gilep AA, Usanov SA, Medvedev AE, Ivanov AS. [Study specificity of isatin interactions with P450 cytochromes]. BIOMEDITSINSKAIA KHIMIIA 2018; 64:61-65. [PMID: 29460836 DOI: 10.18097/pbmc20186401061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cytochrome P450-dependent monooxygenase systems exist basically in all living organisms, where they perform various important functions. The coordinated functioning of these systems involves many proteins participating in different protein-protein interactions (PPI). Previously, we have found that the endogenous non-peptide bioregulator isatin (indoledione-2,3), synthesized from indole by means of certain cytochromes P450 (e.g. P450 2E1, P450 2C19, P450 2A6) regulates affinity of some PPI. In this work, an attempt has been undertaken to register a direct interaction of isatin with a set of different proteins related to the functioning of cytochrome P450-dependent monooxygenase: five isoforms of cytochromes P450, two isoforms of cytochrome b5, cytochrome P450 reductase, adrenodoxin, adrenodoxin reductase and ferrochelatase. The study has shown that isatin binds specifically only to cytochromes P450 with high affinity (the equilibrium dissociation constant (Kd) is about 10-8 M).
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Affiliation(s)
- P V Ershov
- Institute of Biomedical Chemistry, Moscow, Russia
| | | | - E O Yablokov
- Institute of Biomedical Chemistry, Moscow, Russia
| | | | | | - A V Svirid
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - A A Gilep
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - S A Usanov
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - A E Medvedev
- Institute of Biomedical Chemistry, Moscow, Russia
| | - A S Ivanov
- Institute of Biomedical Chemistry, Moscow, Russia
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