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Abo Qoura L, Balakin KV, Hoffman RM, Pokrovsky VS. The potential of methioninase for cancer treatment. Biochim Biophys Acta Rev Cancer 2024; 1879:189122. [PMID: 38796027 DOI: 10.1016/j.bbcan.2024.189122] [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: 01/04/2024] [Revised: 05/07/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Cancer cells are addicted to L-methionine (L-Met) and have a much greater requirement for L-Met than normal cells due to excess transmethylation, termed the Hoffman effect. By targeting this vulnerability through dietary restriction of L-Met, researchers have been able to achieve promising results in inhibiting tumor growth and eradicating cancer cells. Methioninase (EC 4.4.1.11; METase) catalyzes the transformation of L-Met into α-ketobutyrate, ammonia, and methanethiol. The use of METase was initially limited due to its poor stability in vivo, high immunogenicity, and enzyme-induced inactivating antibodies. These issues could be partially resolved by PEGylation, encapsulation in erythrocytes, and various site-directed mutagenesis. The big breakthrough came when it was discovered that METase is effectively administered orally. The enzyme L-asparaginase is approved by the FDA for treatment of acute lymphoblastic leukemia. METase has more potential as a therapeutic since addiction to L-Met is a general and fundamental hallmark of cancer.
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Affiliation(s)
- Louay Abo Qoura
- Research Institute of Molecular and Cellular Medicine, People's Friendship University of Russia (RUDN University), 117198 Moscow, Russia; N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russian Federation, 115478 Moscow, Russia
| | | | - Robert M Hoffman
- AntiCancer Inc., San Diego, CA 92111, USA; Department of Surgery, University of California, San Diego, La Jolla, CA 92037-7400, USA
| | - Vadim S Pokrovsky
- Research Institute of Molecular and Cellular Medicine, People's Friendship University of Russia (RUDN University), 117198 Moscow, Russia; N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russian Federation, 115478 Moscow, Russia.
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2
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Liu Y, Li Y, Peng Y, Feng L, Wang W, Li C, Zhang Y, Wang R, Li C, Ma C, Yang C. Identification and Characterization of Bacterial Alliinase: Resource and Substrate Stereospecificity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:13228-13239. [PMID: 38810088 DOI: 10.1021/acs.jafc.4c02404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Limited alliinase resources cause difficulties in the biosynthesis of thiosulfinates (e.g., allicin), restricting their applications in the agricultural and food industries. To effectively biosynthesize thiosulfinates, this study aimed to excavate bacterial alliinase resources and elucidate their catalytic properties. Two bacterial cystathionine β-lyases (MetCs) possessing high alliinase activity (>60 U mg -1) toward L-(-)-alliin were identified from Allium sativum rhizosphere isolates. Metagenomic exploration revealed that cystathionine β-lyase from Bacillus cereus (BcPatB) possessed high activity toward both L-(±)-alliin and L-(+)-alliin (208.6 and 225.1 U mg -1), respectively. Although these enzymes all preferred l-cysteine S-conjugate sulfoxides as substrates, BcPatB had a closer phylogenetic relationship with Allium alliinases and shared several similar features with A. sativum alliinase. Interestingly, the Trp30Ile31Ala32Asp33 Met34 motif in a cuspate loop of BcPatB, especially sites 31 and 32 at the top of the motif, was modeled to locate near the sulfoxide of L-(+)-alliin and is important for substrate stereospecificity. Moreover, the stereoselectivity and activity of mutants I31V and A32G were higher toward L-(+)-alliin than those of mutant I31L/D33E toward L-(-)-alliin. Using bacterial alliinases and chemically synthesized substrates, we obtained thiosulfinates with high antimicrobial and antinematode activities that could provide insights into the protection of crops and food.
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Affiliation(s)
- Yuanxiang Liu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Yaru Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Yishu Peng
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Luhua Feng
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Wei Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Chongzhou Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Ye Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Ruimin Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Chunfang Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Cuiqing Ma
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
| | - Chunyu Yang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, P. R. China
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Raboni S, Faggiano S, Bettati S, Mozzarelli A. Methionine gamma lyase: Structure-activity relationships and therapeutic applications. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2024; 1872:140991. [PMID: 38147934 DOI: 10.1016/j.bbapap.2023.140991] [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: 11/28/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/28/2023]
Abstract
Methionine gamma lyase (MGL) is a bacterial and plant enzyme that catalyzes the conversion of methionine in methanthiol, 2-oxobutanoate and ammonia. The enzyme belongs to fold type I of the pyridoxal 5'-dependent family. The catalytic mechanism and the structure of wild type MGL and variants were determined in the presence of the natural substrate as well as of many sulfur-containing derivatives. Structure-function relationship studies were pivotal for MGL exploitation in the treatment of cancer, bacterial infections, and other diseases. MGL administration to cancer cells leads to methionine starvation, thus decreasing cells viability and increasing their vulnerability towards other drugs. In antibiotic therapy, MGL acts by transforming prodrugs in powerful drugs. Numerous strategies have been pursued for the delivering of MGL in vivo to prolong its bioavailability and decrease its immunogenicity. These include conjugation with polyethylene glycol and encapsulation in synthetic or natural vesicles, eventually decorated with tumor targeting molecules, such as the natural phytoestrogens daidzein and genistein. The scientific achievements in studying MGL structure, function and perspective therapeutic applications came from the efforts of many talented scientists, among which late Tatyana Demidkina to whom we dedicate this review.
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Affiliation(s)
- Samanta Raboni
- Department of Food and Drug, University of Parma, Parma, Italy; Institute of Biophysics, National Research Council, Pisa, Italy.
| | - Serena Faggiano
- Department of Food and Drug, University of Parma, Parma, Italy; Institute of Biophysics, National Research Council, Pisa, Italy
| | - Stefano Bettati
- Institute of Biophysics, National Research Council, Pisa, Italy; National Institute of Biostructures and Biosystems (INBB), Rome, Italy; Department of Medicine, University of Parma, Parma, Italy
| | - Andrea Mozzarelli
- Department of Food and Drug, University of Parma, Parma, Italy; Institute of Biophysics, National Research Council, Pisa, Italy
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Revtovich S, Lyfenko A, Tkachev Y, Kulikova V, Koval V, Puchkov V, Anufrieva N, Solyev P, Morozova E. Anticandidal Activity of In Situ Methionine γ-Lyase-Based Thiosulfinate Generation System vs. Synthetic Thiosulfinates. Pharmaceuticals (Basel) 2023; 16:1695. [PMID: 38139821 PMCID: PMC10748059 DOI: 10.3390/ph16121695] [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: 10/19/2023] [Revised: 11/19/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
Candida albicans and non-albicans Candida species are a common cause of human mucosal infections, as well as bloodstream infections and deep mycoses. The emergence of resistance of Candida spp. to antifungal drugs used in practice requires the search for new antimycotics. The present study unravels the antifungal potential of the synthetic dialk(en)ylthiosulfinates in comparison with an enzymatic in situ methionine γ-lyase-based thiosulfinate generation system (TGS). The kinetics of the TGS reaction, namely, the methionine γ-lyase-catalyzed β-elimination of S-alk(en)yl-L-cysteine sulfoxides, was investigated via 1H NMR spectroscopy for the first time, revealing fast conversion rates and the efficient production of anticandidal dialk(en)ylthiosulfinates. The anticandidal potential of this system vs. synthetic thiosulfinates was investigated through an in vitro assay. TGS proved to be more effective (MIC range 0.36-1.1 μg/mL) than individual substances (MIC range 0.69-3.31 μg/mL). The tested preparations had an additive effect with the commercial antimycotics fluconazole, amphotericin B and 5-flucytosine demonstrating a fractional inhibitory coefficient index in the range of 0.5-2 μg/mL. TGS can be regarded as an attractive candidate for the targeted delivery of antimycotic thiosulfinates and for further implementation onto medically implanted devices.
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Affiliation(s)
| | | | | | | | | | | | | | - Pavel Solyev
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia; (S.R.); (A.L.); (Y.T.); (V.K.); (V.K.); (V.P.); (N.A.)
| | - Elena Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia; (S.R.); (A.L.); (Y.T.); (V.K.); (V.K.); (V.P.); (N.A.)
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Kulikova VV, Morozova EA, Koval VS, Solyev PN, Demidkina TV, Revtovich SV. Thiosulfinates: Cytotoxic and Antitumor Activity. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:912-923. [PMID: 37751863 DOI: 10.1134/s0006297923070052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 09/28/2023]
Abstract
Pharmacological value of some natural compounds makes them attractive for use in oncology. The sulfur-containing thiosulfinates found in plants of the genus Allium have long been known as compounds with various therapeutic properties, including antitumor. Over the last few years, the effect of thiosulfinates on various stages of carcinogenesis has been actively investigated. In vitro and in vivo studies have shown that thiosulfinates inhibit proliferation of cancer cells, as well as they induce apoptosis. The purpose of this review is to summarize current data on the use of natural and synthetic thiosulfinates in cancer therapy. Antitumor mechanisms and molecular targets of these promising compounds are discussed. A significant part of the review is devoted to consideration of a new strategy for treatment of oncological diseases - use of the directed enzyme prodrug therapy approach aiming to obtain antitumor thiosulfinates in situ.
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Affiliation(s)
- Vitalia V Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia.
| | - Elena A Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Vasiliy S Koval
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Pavel N Solyev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Tatyana V Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Svetlana V Revtovich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
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Phytoestrogens decorated nanocapsules for therapeutic methionine γ-lyase targeted delivery. Biochimie 2023; 209:1-9. [PMID: 36646203 DOI: 10.1016/j.biochi.2023.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/27/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
The main task of targeted therapy is the selective destruction of cancer cells without affecting normal ones. For these purposes, small molecules and antibodies are used that target specific receptors and proteins or block signaling pathways in tumor cells. The natural phytoestrogens daidzein (Dz) and genistein (Gn) possess binding capacity to estrogen receptors (ER). Methionine γ-lyase (MGL) is promising in two strategies of antitumor therapy: for the elimination of l-methionine, which is necessary for the proliferation of tumor cells, and for the production of cytotoxic dialkyl thiosulfinates in situ. For delivery of MGL-loaded nanocapsules (nanoreactors) to the surface of cancer cells a technique for Dz or Gn incorporation into the shell of polyionic vesicles (PICsomes) was developed. The nanoreactors were characterized by dynamic light scattering and transmission electron microscopy. The enzyme retained its catalytic efficiency inside the decorated PICsomes. The binding of Dz/Gn-nanoreactors to the surface of ER + MCF7 breast adenocarcinoma cells was demonstrated. For the first time an influence of enzyme-loaded PICsomes and their individual components on embryos development was evaluated. The high rate of blastocysts formation (>80%) was observed for all tested components and nanoreactors themselves. A strong inhibitory effect on the early embryonic development of MGL-loaded PICsomes in the presence of S-alkyl-l-cysteine sulfoxide substrates was showed. This proves that the substrates can freely penetrate through the polymer shell of the polyionic vesicle and are cleaved by MGL to form cytotoxic thiosulfinates. The data obtained for phytoestrogens decorated PICsomes may be applied in enzyme therapy of malignant tumors.
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Abo Qoura L, Morozova E, Kulikova V, Karshieva S, Sokolova D, Koval V, Revtovich S, Demidkina T, Pokrovsky VS. Methionine γ-Lyase-Daidzein in Combination with S-Propyl-L-cysteine Sulfoxide as a Targeted Prodrug Enzyme System for Malignant Solid Tumor Xenografts. Int J Mol Sci 2022; 23:ijms231912048. [PMID: 36233347 PMCID: PMC9569779 DOI: 10.3390/ijms231912048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/10/2022] [Accepted: 10/06/2022] [Indexed: 12/01/2022] Open
Abstract
The purpose of this study was to determine the anticancer effect of dipropyl thiosulfinate produced in situ by the pharmacological pair: (1) conjugated with daidzein C115H methionine γ-lyase (EC 4.4.1.11, C115H MGL-Dz) and (2) the substrate, S-propyl-L-cysteine sulfoxide (propiin) against various solid tumor types in vitro and in vivo. The MTT test was used to calculate IC50 values for HT29, COLO205 and HCT116 (colon cancer); Panc1 and MIA-PaCa2 (pancreatic cancer); and 22Rv1, DU-145 and PC3 (prostate cancer). The most promising effect for colon cancer cells in vitro was observed in HT29 (IC50 = 6.9 µM). The IC50 values for MIA-PaCa2 and Panc1 were 3.4 and 3.8 µM, respectively. Among prostate cancer cells, 22Rv1 was the most sensitive (IC50 = 5.4 µM). In vivo antitumor activity of the pharmacological pair was studied in HT29, SW620, Panc1, MIA-PaCa2 and 22Rv1 subcutaneous xenografts in BALB/c nude mice. The application of C115H MGL-Dz /propiin demonstrated a significant reduction in the tumor volume of Panc1 (TGI 67%; p = 0.004), MIA-PaCa2 (TGI 50%; p = 0.011), HT29 (TGI 51%; p = 0.04) and 22Rv1 (TGI 70%; p = 0.043) xenografts. The results suggest that the combination of C115H MGL-Dz/propiin is able to suppress tumor growth in vitro and in vivo and the use of this pharmacological pair can be considered as a new strategy for the treatment of solid tumors.
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Affiliation(s)
- Louay Abo Qoura
- Department of Biochemistry, RUDN University, 117198 Moscow, Russia
| | - Elena Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
- Correspondence: (E.M.); (V.S.P.); Tel.: +7-915-143-03-91 (V.S.P.)
| | - Vitalia Kulikova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Saida Karshieva
- Laboratory of Combined Treatment, N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russian Federation, 115478 Moscow, Russia
| | - Darina Sokolova
- Department of Biochemistry, RUDN University, 117198 Moscow, Russia
- Laboratory of Combined Treatment, N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russian Federation, 115478 Moscow, Russia
| | - Vasiliy Koval
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Svetlana Revtovich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Tatyana Demidkina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Vadim S. Pokrovsky
- Department of Biochemistry, RUDN University, 117198 Moscow, Russia
- Laboratory of Combined Treatment, N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russian Federation, 115478 Moscow, Russia
- Department of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Correspondence: (E.M.); (V.S.P.); Tel.: +7-915-143-03-91 (V.S.P.)
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8
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Anufrieva NV, Morozova EA, Revtovich SV, Bazhulina NP, Timofeev V, Tkachev YV, Faleev N, Nikulin AD, Demidkina TV. Serine 339 in the Catalysis of γ- and β-Elimination Reactions. Acta Naturae 2022; 14:50-61. [PMID: 35923564 PMCID: PMC9307983 DOI: 10.32607/actanaturae.11242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 07/21/2021] [Indexed: 11/20/2022] Open
Abstract
Serine 339 of the active site of Citrobacter freundii
methionine γ-lyase (MGL) is a conserved amino acid in most
pyridoxal 5’-phosphate-dependent enzymes of the cystathionine
β-lyase subclass, to which MGL belongs. The reaction mechanism of the
MGL-catalyzed γ-elimination reaction is poorly explored. We replaced
serine 339 with alanine using site-directed mutagenesis. The replacement of
serine 339 with alanine led to a significant (by two orders of magnitude)
decrease in efficiency in the catalysis of the γ- and β-elimination
reactions by the mutant form of the enzyme. The exchange rates of the C-α-
and C-β-protons in the amino acids in complexes consisting of the enzyme
and competitive inhibitors decreased by one-two orders of magnitude. The
spectral characteristics of the mutant form indicated that the replacement did
not lead to significant changes in the conformation and tautomerism of MGL
internal aldimine. We crystallized the holoenzyme and determined its spatial
structure at 1.7 E resolution. The replacement of serine 339 with alanine did
not affect the overall course of the polypeptide chain of the MGL subunit and
the tetrameric enzyme structure. An analysis of the obtained kinetic and
spectral data, as well as the known spatial structures of C. freundii
MGL, indicates that serine 339 is necessary for efficient catalysis of
γ- and β-elimination reactions at the stage of C-α-proton
abstraction from the external aldimine, the γ-elimination reaction at the
stages of coenzyme C4’-atom protonation, and C-β-proton abstraction
from a ketimine intermediate.
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Affiliation(s)
- N. V. Anufrieva
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - E. A. Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - S. V. Revtovich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - N. P. Bazhulina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - V.P. Timofeev
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - Ya. V. Tkachev
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - N.G. Faleev
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Moscow, 119991 Russia
| | - A. D. Nikulin
- Institute of Protein Research of the Russian Academy of Sciences, Pushchino, Moscow Region, 142290 Russia
| | - T. V. Demidkina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, 119991 Russia
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Sharma B, Devi S, Kumar R, Kanwar SS. Screening, characterization and anti-cancer application of purified intracellular MGL. Int J Biol Macromol 2022; 217:96-110. [PMID: 35817235 DOI: 10.1016/j.ijbiomac.2022.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 04/21/2022] [Accepted: 07/04/2022] [Indexed: 11/05/2022]
Abstract
L-methionine-γ-lyase (MGL) producing bacterial isolates were screened from soil samples that further characterized as 'Klebsiella oxytoca BLM-1' by biochemical and 16S rDNA sequencing. Intracellular MGL obtained from K. oxytoca BLM-1 by sonication was purified by Octyl-Sepharose and Sephadex G-200 column chromatography. MALDI-TOF-MS analysis of protein band (Mr ~ 63 kDa) confirmed the PLP-dependence and structural similarity with MGL enzyme. Purified MGL (1.1 μg) exhibited the maximum activity in potassium phosphate buffer (80 mM; with L-met 20 mM pH 7.0) at 37 °C. That further enhanced in the presence of NaCl (2 mM), Tween-80 (1.0 %; v/v) and EDTA (5 mM). Km and Vmax for purified MGL by using L-met as substrate was found to be 5.32 mM and 0.386 U/mL/min. The purified MGL showed PLP dependence and the half-life was 365.59 min. The MGL was effective against breast cancer (MCF7), gastric adenocarcinoma and human glioblastoma (U87MG) cancer cell lines with IC50 values of purified MGL 0.041 U/mL, 0.008 U/mL and 0.009 U/mL, respectively. The U87MG, greatly affected by MGL treatment, when cultured in DMEM medium (10 mL) with PLP, homocysteine and 10 % FCS as compared to control/untransformed mouse spleen cells.
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Affiliation(s)
- Bhupender Sharma
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Sunita Devi
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Rakesh Kumar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Shamsher Singh Kanwar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India.
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10
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Koval V, Morozova E, Revtovich S, Lyfenko A, Chobanian A, Timofeeva V, Solovieva A, Anufrieva N, Kulikova V, Demidkina T. Characteristics and Stability Assessment of Therapeutic Methionine γ-lyase-Loaded Polyionic Vesicles. ACS OMEGA 2022; 7:959-967. [PMID: 35036759 PMCID: PMC8757458 DOI: 10.1021/acsomega.1c05558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
Pyridoxal 5'-phosphate-dependent methionine γ-lyase from Citrobacter freundii (MGL, EC 4.4.1.11) is studied as an antitumor enzyme and in combination with substrates as an antibacterial agent in enzyme pro-drug therapy. For the possibility of in vivo trials, two mutant forms, C115H MGL and V358Y MGL, were encapsulated into polyionic vesicles (PICsomes). Five pairs of polymers with the number of polymer chain units 20, 50, 70, 120, and 160 were synthesized. The effect of polymer length-PEGylated poly-l-aspartic acid and poly-l-lysine-on the degree of MGL incorporation into PICsomes and their size was investigated. Encapsulation of proteins in PICsomes is a rather new technique. Our data demonstrated that the length of the polymers and, therefore, the ratio of the hydrophobic and hydrophilic fragments most likely should be selected individually for each protein to be encapsulated. The efficiency of encapsulation of MGL mutant forms into PICsomes was up to 11%. The hydrodynamic diameter and surface potential of hollow and MGL-loaded PICsomes were evaluated by the dynamic light scattering method. The size and morphology of the PICsomes were determined by atomic force microscopy. The most acceptable for further in vivo studies were PICsomes20 with a size of 57-64 nm, PICsomes70 of 50-90 nm, and PICsomes120 of 100-105 nm. The analysis of the steady-state parameters has demonstrated that both mutant forms retained their catalytic properties inside the nanoparticles. The release study of the enzymes from PICsomes revealed that about 50% of the enzymes remained encapsulated in PICsomes70 and PICsomes120 after 24 h. Based on the data obtained, the most promising for in vivo studies are PICsomes70 and PICsomes120.
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Affiliation(s)
- Vasily Koval
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Elena Morozova
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Svetlana Revtovich
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Anna Lyfenko
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Arpi Chobanian
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Viktoria Timofeeva
- N.
N. Semenov Institute of Chemical Physics of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Anna Solovieva
- N.
N. Semenov Institute of Chemical Physics of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Natalya Anufrieva
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Vitalia Kulikova
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
| | - Tatyana Demidkina
- FSBIS
Engelhardt Institute of Molecular Biology of the Russian Academy of
Sciences, Moscow 119991, Russia
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11
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Kulikova VV, Morozova EA, Anufrieva NV, Koval VS, Lyfenko AD, Lesnova EI, Kushch AA, Revtovich SV, Demidkina TV. Kinetic and pharmacokinetic characteristics of therapeutic methinoninе γ-lyase encapsulated in polyion complex vesicles. Biochimie 2021; 194:13-18. [PMID: 34923045 DOI: 10.1016/j.biochi.2021.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/02/2021] [Accepted: 12/13/2021] [Indexed: 12/14/2022]
Abstract
Therapeutic enzymes used for the treatment of a wide range of human disorders often suffer from suboptimal pharmacokinetics and stability. Engineering approaches such as encapsulation in micro- and nanocarriers, and replacements of amino acid residues of the native enzyme provide significant potential for improving the performance of enzyme therapy. Here, we develop a nanodelivery system on the base of polyion complex vesicles (PICsomes) that includes methionine γ-lyase (MGL) as a therapeutic enzyme. We have two strategies for using the enzyme: first, methionine γ-lyase is an anticancer agent removing l-methionine from plasma, second, the binary system methionine γ-lyase/S-alk(en)yl-l-cysteine sulfoxides is effective in enzyme prodrug therapy (EPT). Various lengths polymers were synthesized, and two mutant forms of the enzyme were used. The catalytic and pharmacokinetic parameters of the nanoformulations were investigated. The catalytic efficiencies of encapsulated enzymes were comparable to that of native enzymes. Pharmacokinetic analysis has shown that inclusion into PICsomes increases half-life of the enzymes, and they can be safely administered in vivo. The results suggest the further use of encapsulated MGLs for EPT and anticancer therapy, and this strategy could be leveraged to improve the efficiency of enzyme-based therapies for managing serious human diseases.
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Affiliation(s)
- Vitalia V Kulikova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia.
| | - Elena A Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
| | - Natalya V Anufrieva
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
| | - Vasiliy S Koval
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
| | - Anna D Lyfenko
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
| | - Ekaterina I Lesnova
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, 123098, Russia
| | - Alla A Kushch
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, 123098, Russia
| | - Svetlana V Revtovich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
| | - Tatyana V Demidkina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov street, 32, Moscow, 119991, Russia
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12
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Morozova E, Anufrieva N, Koval V, Lesnova E, Kushch A, Timofeeva V, Solovieva A, Kulikova V, Revtovich S, Demidkina T. Conjugates of methionine γ-lyase with polysialic acid: Two approaches to antitumor therapy. Int J Biol Macromol 2021; 182:394-401. [PMID: 33839182 DOI: 10.1016/j.ijbiomac.2021.03.201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 10/21/2022]
Abstract
The methionine dependence is a well known phenomenon in metabolism of cancer cells. Methionine γ-lyase (EC 4.4.1.11, MGL) catalyzes the γ-elimination reaction of L-methionine and thus could effectively inhibit the growth of malignant cells. Recently we have demonstrated that the mutant form of the enzyme C115H MGL can be used as a component of the pharmacological pair enzyme/S-(allyl/alkyl)-L-cysteine sulfoxides to yield thiosulfinates in situ. Thiosulfinates were shown to be toxic to various cancer cell lines. Therefore the application of the enzyme in enzyme pro-drug therapy may be promising. The conjugates of MGL and C115H MGL with polysialic acid were obtained and their kinetic and pharmacokinetic parameters were determined. The formation of polysialic shell around the enzyme was confirmed by atomic force microscopy. The half-life of conjugated enzymes increased 3-6 times compared to the native enzyme. The cytotoxic effect of conjugated MGL against methionine dependent cancer cell lines was increased two times compared to the values for the native enzymes. The anticancer efficiency of thiosulfinates produced by pharmacological pair C115H MGL/S-(allyl/alkyl)-L-cysteine sulfoxides was demonstrated in vitro. The results indicate that the conjugates of MGL with polysialic acid could be new antitumor drugs.
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Affiliation(s)
- E Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia.
| | - N Anufrieva
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - V Koval
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - E Lesnova
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia
| | - A Kushch
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia
| | - V Timofeeva
- N. N. Semenov Institute of Chemical Physics of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - A Solovieva
- N. N. Semenov Institute of Chemical Physics of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - V Kulikova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - S Revtovich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - T Demidkina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 119991 Moscow, Russia
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13
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Faleev NG, Tsvetikova MA, Ilyin MM, Yufryakov VS, Kolotyrkina NG, Kulikova VV, Demidkina TV, Kochetkov KA. Unusual stereoselectivity of methionine-γ-lyase from Citrobacterfreundii toward diastereomeric (S)-methionine S-oxide. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Morozova E, Kulikova V, Koval V, Anufrieva N, Chernukha M, Avetisyan L, Lebedeva L, Medvedeva O, Burmistrov E, Shaginyan I, Revtovich S, Demidkina T. Encapsulated Methionine γ-Lyase: Application in Enzyme Prodrug Therapy of Pseudomonas aeruginosa Infection. ACS OMEGA 2020; 5:7782-7786. [PMID: 32309686 PMCID: PMC7160827 DOI: 10.1021/acsomega.9b03555] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 03/24/2020] [Indexed: 05/29/2023]
Abstract
Lung disease caused by Pseudomonas aeruginosa is the leading reason for death in cystic fibrosis patients. Therapeutic efficacy of the pharmacological pairs, the naked/encapsulated mutant form of Citrobacter freundii methionine γ-lyase and the substrates, sulfoxides of S-substituted l-cysteine, generating thiosulfinates, was evaluated on the murine model of experimental sepsis caused by the multidrug-resistant P. aeruginosa 203-2 strain. The pairs containing the naked enzyme and substrates did not have antibacterial activity. The treatment of mice with the pair encapsulated enzyme and S-methyl-l-cysteine sulfoxide, generating dimethyl thiosulfinate, led to a complete recovery of the animals of the model, with the infecting dose equal to LD50. The pair generating diallyl thiosulfinate (allicin) proved to be less effective. So, the substituents, attached to the thiosulfinate moiety, affect the antibacterial activity of thiosulfinates against P. aeruginosa.
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Affiliation(s)
- Elena Morozova
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Vitalia Kulikova
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Vasily Koval
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Natalya Anufrieva
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Marina Chernukha
- National
Research Center for Epidemiology and Microbiology Named after the
Honorary Academician N. F. Gamaleya, Healthcare
Ministry of Russia, Gamalei
st. 18, Moscow 123098, Russia
| | - Lusine Avetisyan
- National
Research Center for Epidemiology and Microbiology Named after the
Honorary Academician N. F. Gamaleya, Healthcare
Ministry of Russia, Gamalei
st. 18, Moscow 123098, Russia
| | - Lada Lebedeva
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Olga Medvedeva
- National
Research Center for Epidemiology and Microbiology Named after the
Honorary Academician N. F. Gamaleya, Healthcare
Ministry of Russia, Gamalei
st. 18, Moscow 123098, Russia
| | - Egor Burmistrov
- National
Research Center for Epidemiology and Microbiology Named after the
Honorary Academician N. F. Gamaleya, Healthcare
Ministry of Russia, Gamalei
st. 18, Moscow 123098, Russia
| | - Igor Shaginyan
- National
Research Center for Epidemiology and Microbiology Named after the
Honorary Academician N. F. Gamaleya, Healthcare
Ministry of Russia, Gamalei
st. 18, Moscow 123098, Russia
| | - Svetlana Revtovich
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
| | - Tatyana Demidkina
- Engelhardt
Institute of Molecular Biology of the Russian Academy of Sciences, Vavilov str. 32, Moscow 119991, Russia
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15
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Revtovich S, Morozova E, Kulikova V, Koval V, Anufrieva N, Nikulin A, Demidkina T. Sulfoxides of sulfur-containing amino acids are suicide substrates of Citrobacter freundii methionine γ-lyase. Structural bases of the enzyme inactivation. Biochimie 2019; 168:190-197. [PMID: 31711941 DOI: 10.1016/j.biochi.2019.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 11/05/2019] [Indexed: 11/18/2022]
Abstract
Interactions of Citrobacter freundii methionine γ-lyase (MGL) with sulfoxides of typical substrates were investigated. It was found that sulfoxides are suicide substrates of the enzyme. The products of the β- and γ-elimination reactions of sulfoxides, thiosulfinates, oxidize three cysteine residues of the enzyme. Three-dimensional structures of MGL inactivated by dimethyl thiosulfinate and diethyl thiosulfinate were determined at 1.46 Å and 1.59 Å resolution. Analysis of the structures identified SH groups oxidized by thiosulfinates and revealed the structural bases of MGL inactivation. The extent of inactivation of MGL in the catalysis of the β-elimination reaction depends on the length of the «tail» at oxidized Cys115. Oxidation of Cys115 results in MGL incapable to catalyze the stage of methyl mercaptan elimination of the physiological reaction.
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Affiliation(s)
- Svetlana Revtovich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia.
| | - Elena Morozova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Vitalia Kulikova
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Vasiliy Koval
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Natalya Anufrieva
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Alexei Nikulin
- Institute of Protein Research of the Russian Academy of Sciences, Pushchino, Moscow Region, Russia
| | - Tatyana Demidkina
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
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16
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Morozova EA, Kulikova VV, Anufrieva NV, Minakov AN, Chernov AS, Telegin GB, Revtovich SV, Koval VS, Demidkina TV. Methionine γ-lyase in enzyme prodrug therapy: An improvement of pharmacokinetic parameters of the enzyme. Int J Biol Macromol 2019; 140:1277-1283. [DOI: 10.1016/j.ijbiomac.2019.08.224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/26/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022]
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17
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Non-stereoselective decomposition of (±)-S-alk(en)yl- l -cysteine sulfoxides to antibacterial thiosulfinates catalyzed by C115H mutant methionine γ-lyase from Citrobacter freundii. Biochimie 2018; 151:42-44. [DOI: 10.1016/j.biochi.2018.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 05/23/2018] [Indexed: 11/23/2022]
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18
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Kulikova VV, Morozova EA, Revtovich SV, Kotlov MI, Anufrieva NV, Bazhulina NP, Raboni S, Faggiano S, Gabellieri E, Cioni P, Belyi YF, Mozzarelli A, Demidkina TV. Gene cloning, characterization, and cytotoxic activity of methionine γ-lyase fromClostridium novyi. IUBMB Life 2017; 69:668-676. [DOI: 10.1002/iub.1649] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 06/07/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Vitalia V. Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Elena A. Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Svetlana V. Revtovich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Mikhail I. Kotlov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Natalya V. Anufrieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Natalya P. Bazhulina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Samanta Raboni
- Department of Food and Drug; University of Parma; Parma Italy
- Institute of Biophysics, National Research Council; Pisa Italy
| | - Serena Faggiano
- Department of Food and Drug; University of Parma; Parma Italy
- Institute of Biophysics, National Research Council; Pisa Italy
| | - Edi Gabellieri
- Institute of Biophysics, National Research Council; Pisa Italy
| | - Patrizia Cioni
- Institute of Biophysics, National Research Council; Pisa Italy
| | - Yury F. Belyi
- Gamaleya Research Institute of Epidemiology and Microbiology, Ministry of Public Health; Moscow Russia
| | - Andrea Mozzarelli
- Department of Food and Drug; University of Parma; Parma Italy
- Institute of Biophysics, National Research Council; Pisa Italy
- National Institute of Biostructures and Biosystems; Rome Italy
| | - Tatyana V. Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
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19
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Revtovich SV, Morozova EA, Kulikova VV, Anufrieva NV, Osipova TI, Koval VS, Nikulin AD, Demidkina TV. Crystal structure of mutant form Cys115His of Citrobacter freundii methionine γ-lyase complexed with l-norleucine. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:1123-1128. [PMID: 28602917 DOI: 10.1016/j.bbapap.2017.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 06/02/2017] [Accepted: 06/05/2017] [Indexed: 11/30/2022]
Abstract
The mutant form of Citrobacter freundii methionine γ-lyase with the replacement of active site Cys115 for His has been found to be inactive in the γ-elimination reaction of methionine while fully active in the γ-elimination reaction of O-acetyl-l-homoserine and in the β-elimination reaction of S-alk(en)yl-substituted cysteines. In this work, the crystal structure of the mutant enzyme complexed with competitive inhibitor, l-norleucine was determined at 1.45Å resolution. At the enzyme active site the inhibitor proved to be bound both noncovalently and covalently, which corresponds to the two intermediates of the γ- and β-elimination reactions, Michaelis complex and the external aldimine. Analysis of the structure allowed us to suggest the possible reason for the inability of the mutant enzyme to catalyze the physiological reaction.
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Affiliation(s)
- Svetlana V Revtovich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Elena A Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Vitalia V Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Natalya V Anufrieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Tatyana I Osipova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Vasiliy S Koval
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alexey D Nikulin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Tatyana V Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
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20
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Sato D, Shiba T, Yunoto S, Furutani K, Fukumoto M, Kudou D, Tamura T, Inagaki K, Harada S. Structural and mechanistic insights into homocysteine degradation by a mutant of methionine γ-lyase based on substrate-assisted catalysis. Protein Sci 2017; 26:1224-1230. [PMID: 28329912 DOI: 10.1002/pro.3158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/14/2017] [Accepted: 03/17/2017] [Indexed: 01/26/2023]
Abstract
Methionine γ-lyse (MGL) catalyzes the α, γ-elimination of l-methionine and its derivatives as well as the α, β-elimination of l-cysteine and its derivatives to produce α-keto acids, volatile thiols, and ammonia. The reaction mechanism of MGL has been characterized by enzymological studies using several site-directed mutants. The Pseudomonas putida MGL C116H mutant showed drastically reduced degradation activity toward methionine while retaining activity toward homocysteine. To understand the underlying mechanism and to discern the subtle differences between these substrates, we analyzed the crystal structures of the reaction intermediates. The complex formed between the C116H mutant and methionine demonstrated that a loop structure (Ala51-Asn64) in the adjacent subunit of the catalytic dimer cannot approach the cofactor pyridoxal 5'-phosphate (PLP) because His116 disrupts the interaction of Asp241 with Lys240, and the liberated side chain of Lys240 causes steric hindrance with this loop. Conversely, in the complex formed between C116H mutant and homocysteine, the thiol moiety of the substrate conjugated with PLP offsets the imidazole ring of His116 via a water molecule, disrupting the interaction of His116 and Asp241 and restoring the interaction of Asp241 with Lys240. These structural data suggest that the Cys116 to His mutation renders the enzyme inactive toward the original substrate, but activity is restored when the substrate is homocysteine due to substrate-assisted catalysis.
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Affiliation(s)
- Dan Sato
- Department of Applied Biology, Graduate School of Science Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan
| | - Tomoo Shiba
- Department of Applied Biology, Graduate School of Science Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan
| | - Shunsuke Yunoto
- Department of Applied Biology, Graduate School of Science Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan
| | - Kazuo Furutani
- Department of Applied Biology, Graduate School of Science Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan
| | - Mitsuki Fukumoto
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Daizou Kudou
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Takashi Tamura
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Kenji Inagaki
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Shigeharu Harada
- Department of Applied Biology, Graduate School of Science Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan
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21
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Kulikova VV, Anufrieva NV, Revtovich SV, Chernov AS, Telegin GB, Morozova EA, Demidkina TV. Mutant form C115H ofClostridium sporogenesmethionine γ-lyase efficiently cleaves S-Alk(en)yl-l-cysteine sulfoxides to antibacterial thiosulfinates. IUBMB Life 2016; 68:830-5. [DOI: 10.1002/iub.1562] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/03/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Vitalia V. Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Natalya V. Anufrieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Svetlana V. Revtovich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Alexander S. Chernov
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences; Pushchino Moscow Russia
| | - Georgii B. Telegin
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences; Pushchino Moscow Russia
| | - Elena A. Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
| | - Tatyana V. Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences; Moscow Russia
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