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Muramatsu H, Koujitani A, Yamada M, Maguchi H, Kashiwagi T, Kato SI. Characterization of hydantoin-5-propionic acid amidohydrolase involved in ergothioneine utilization in Burkholderia sp. HME13. Biosci Biotechnol Biochem 2023; 87:411-419. [PMID: 36694933 DOI: 10.1093/bbb/zbad002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/29/2022] [Indexed: 01/26/2023]
Abstract
In our previous study, ertABC genes encoding ergothionase, thiourocanate hydratase, and 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid desulfhydrase were identified, all of which may be involved in ergothioneine utilization of Burkholderia sp. HME13. In this study, we identify the ertD gene encoding metal-dependent hydantoin-5-propionic acid amidohydrolase in this strain. Mn2+-containing ErtD showed maximum activity at 45 °C and pH 8.5 and was stable at temperatures up to 45 °C. The Km and Vmax values of Mn2+-containing ErtD for hydantoin-5-propionic acid were 2.8 m m and 16 U/mg, respectively. Real-time polymerase chain reaction (PCR) revealed that ertD expression levels in Burkholderia sp. HME13 cells cultivated in ergothioneine medium were 3.3-fold higher than those in cells cultivated in Luria-Bertani (LB) medium. ErtD activity in the crude extract from Burkholderia sp. HME13 cells cultured in ergothioneine medium was 0.018 U/mg, whereas that in LB medium was not detected. Accordingly, we suggest that ErtD is involved in ergothioneine utilization in this strain.
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Affiliation(s)
- Hisashi Muramatsu
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
| | - Akihito Koujitani
- Graduate School of Integrated Arts and Sciences, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
| | - Masaaki Yamada
- Graduate School of Integrated Arts and Sciences, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
| | - Hiroki Maguchi
- Graduate School of Integrated Arts and Sciences, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
| | - Takehiro Kashiwagi
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
| | - Shin-Ichiro Kato
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi, Japan
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Muramatsu H, Maguchi H, Harada T, Kashiwagi T, Kim CS, Kato SI, Nagata S. Identification of the gene encoding 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid desulfhydrase in Burkholderia sp. HME13. Biosci Biotechnol Biochem 2020; 85:626-629. [DOI: 10.1093/bbb/zbaa066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/27/2020] [Indexed: 11/12/2022]
Abstract
ABSTRACT
Here, we report the identification of the gene encoding a novel enzyme, 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid desulfhydrase, in Burkholderia sp. HME13. The enzyme converts 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid and H2O to 3-(2,5-dioxoimidazolidin-4-yl) propionic acid and H2S. Amino acid sequence analysis of the enzyme indicates that it belongs to the DUF917 protein family, which consists of proteins of unknown function.
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Affiliation(s)
- Hisashi Muramatsu
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Hiroki Maguchi
- Department of Agriculture, Kochi University, Kochi, Japan
| | - Taisuke Harada
- Department of Agriculture, Kochi University, Kochi, Japan
| | - Takehiro Kashiwagi
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Chul-Sa Kim
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Shin-ichiro Kato
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Shinji Nagata
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
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Muramatsu H, Miyaoku H, Kurita S, Matsuo H, Kashiwagi T, Kim CS, Hayashi M, Yamamoto H, Kato SI, Nagata S. Gene cloning and characterization of thiourocanate hydratase from Burkholderia sp. HME13. J Biochem 2019; 167:333-341. [DOI: 10.1093/jb/mvz098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/04/2019] [Indexed: 01/09/2023] Open
Abstract
AbstractA novel enzyme, thiourocanate hydratase, which catalyses the conversion of thiourocanic acid to 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid, was isolated from the ergothioneine-utilizing strain, Burkholderia sp. HME13. When the HME13 cells were cultured in medium containing ergothioneine as the sole nitrogen source, thiourocanate-metabolizing activity was detected in the crude extract from the cells. However, activity was not detected in the crude extract from HME13 cells that were cultured in Luria-Bertani medium. The gene encoding thiourocanate hydratase was cloned and expressed in Escherichia coli, and the recombinant enzyme was purified to homogeneity. The enzyme showed maximum activity at pH 7.5 and 55°C and was stable between pH 5.0 and 10.5, and at temperatures up to 45°C. The Km and Vmax values of thiourocanate hydratase towards thiourocanic acid were 30 μM and 7.1 μmol/min/mg, respectively. The enzyme was strongly inhibited by CuCl2 and HgCl2. The amino acid sequence of the enzyme showed 46% identity to urocanase from Pseudomonas putida, but thiourocanate hydratase had no urocanase activity.
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Affiliation(s)
- Hisashi Muramatsu
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Haruna Miyaoku
- Department of Agriculture, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Syuya Kurita
- Department of Agriculture, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Hidenori Matsuo
- Graduate School of Integrated Arts and Sciences, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Takehiro Kashiwagi
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Chul-Sa Kim
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Motoko Hayashi
- Corporate Research Center, R&D Headquaters Management, Daicel Corporation 1-1 Shinko-cho, Myoko, shi, Niigata 944-8550, Japan
| | - Hiroaki Yamamoto
- Corporate Research Center, R&D Headquaters Management, Daicel Corporation 1-1 Shinko-cho, Myoko, shi, Niigata 944-8550, Japan
| | - Shin-Ichiro Kato
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
| | - Shinji Nagata
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
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Vimalraj S, Sumantran VN, Chatterjee S. MicroRNAs: Impaired vasculogenesis in metal induced teratogenicity. Reprod Toxicol 2017; 70:30-48. [PMID: 28249814 DOI: 10.1016/j.reprotox.2017.02.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 02/14/2017] [Accepted: 02/21/2017] [Indexed: 02/07/2023]
Abstract
Certain metals have been known for their toxic effects on embryos and fetal development. The vasculature in early pregnancy is extremely dynamic and plays an important role in organogenesis. Nascent blood vessels in early embryonic life are considered to be a primary and delicate target for many teratogens since the nascent blood islands follow a tightly controlled program to form vascular plexus around and inside the embryo for resourcing optimal ingredients for its development. The state of the distribution of toxic metals, their transport mechanisms and the molecular events by which they notch extra-embryonic and embryonic vasculatures are illustrated. In addition, pharmacological aspects of toxic metal induced teratogenicity have also been portrayed. The work reviewed state of the current knowledge of specific role of microRNAs (miRNAs) that are differentially expressed in response to toxic metals, and how they interfere with the vasculogenesis that manifests into embryonic anomalies.
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Affiliation(s)
- Selvaraj Vimalraj
- Vascular Biology Lab, AU-KBC Research Centre, Anna University, Chennai, India.
| | | | - Suvro Chatterjee
- Vascular Biology Lab, AU-KBC Research Centre, Anna University, Chennai, India; Department of Biotechnology, Anna University, Chennai, India.
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Jalilehvand F, Amini Z, Parmar K. Cadmium(II) complex formation with selenourea and thiourea in solution: an XAS and 113Cd NMR study. Inorg Chem 2012; 51:10619-30. [PMID: 23016594 PMCID: PMC3498765 DOI: 10.1021/ic300852t] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The complexes formed in methanol solutions of Cd(CF(3)SO(3))(2) with selenourea (SeU) or thiourea (TU), for thiourea also in aqueous solution, were studied by combining (113)Cd NMR and X-ray absorption spectroscopy. At low temperature (~200 K), distinct (113)Cd NMR signals were observed, corresponding to CdL(n)(2+) species (n = 0-4, L = TU or SeU) in slow ligand exchange. Peak integrals were used to obtain the speciation in the methanol solutions, allowing stability constants to be estimated. For cadmium(II) complexes with thione (C═S) or selone (C═Se) groups coordinated in Cd(S/Se)O(5) or Cd(S/Se)(2)O(4) (O from MeOH or CF(3)SO(3)(-)) environments, the (113)Cd chemical shifts were quite similar, within 93-97 ppm and 189-193 ppm, respectively. However, the difference in the chemical shift for the Cd(SeU)(4)(2+) (578 pm) and Cd(TU)(4)(2+) (526 ppm) species, with CdSe(4) and CdS(4) coordination, respectively, shows less chemical shielding for the coordinated Se atoms than for S, in contrast to the common trend with increasing shielding in the following order: O > N > Se > S. In solutions dominated by mono- and tetra-thiourea/selenourea complexes, their coordination and bond distances could be evaluated by Cd K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy. At ~200 K and high excess of thiourea, a minor amount (up to ~30%) of [Cd(TU)(5-6)](2+) species was detected by an upfield shift of the (113)Cd NMR signal (up to 423 ppm) and an amplitude reduction of the EXAFS oscillation. The amount was estimated by fitting linear combinations of simulated EXAFS spectra for [Cd(TU)(4)](2+) and [Cd(TU)(6)](2+) complexes. At room temperature, [Cd(TU)(4)](2+) was the highest complex formed, also in aqueous solution. Cd L(3)-edge X-ray absorption near edge structure (XANES) spectra of cadmium(II) thiourea solutions in methanol were used to follow changes in the CdS(x)O(y) coordination. The correlations found from the current and previous studies between (113)Cd NMR chemical shifts and different Cd(II) coordination environments are generally useful for evaluating cadmium coordination to thione-containing or Se-donor ligands in biochemical systems or for monitoring speciation in solution.
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Affiliation(s)
- Farideh Jalilehvand
- Department of Chemistry, University of Calgary, Calgary, AB, Canada T2N 1N4.
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Characterization of ergothionase from Burkholderia sp. HME13 and its application to enzymatic quantification of ergothioneine. Appl Microbiol Biotechnol 2012; 97:5389-400. [DOI: 10.1007/s00253-012-4442-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 09/03/2012] [Accepted: 09/16/2012] [Indexed: 10/27/2022]
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Functional expression of carnitine/organic cation transporter OCTN1 in mouse brain neurons: possible involvement in neuronal differentiation. Neurochem Int 2012; 61:1121-32. [PMID: 22944603 DOI: 10.1016/j.neuint.2012.08.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 08/07/2012] [Accepted: 08/10/2012] [Indexed: 01/09/2023]
Abstract
The aim of the present study is to clarify the functional expression and physiological role in brain neurons of carnitine/organic cation transporter OCTN1/SLC22A4, which accepts the naturally occurring antioxidant ergothioneine (ERGO) as a substrate in vivo. After intracerebroventricular administration, the distribution of [(3)H]ERGO in several brain regions of octn1(-/-) mice was much lower than that in wild-type mice, whereas extracellular marker [(14)C]mannitol exhibited similar distribution in the two strains. The [(3)H]ERGO distribution in wild-type mice was well correlated with the amount of ERGO derived from food intake and the OCTN1 mRNA level in each brain region. Immunohistochemical analysis revealed colocalization of OCTN1 with neuronal cell markers microtubule-associated protein 2 (MAP2) and βIII-tubulin in mouse brain and primary cultured cortical neurons, respectively. Moreover, cultured cortical neurons exhibited time-dependent and saturable uptake of [(3)H]ERGO. These results demonstrate that OCTN1 is functionally expressed in brain neurons. The addition of ERGO simultaneously with serum to culture medium of cortical neurons attenuated mRNA and protein expressions of MAP2, βIII-tubulin and synapse formation marker synapsin I, and induced those of sex determining region Y-box 2 (Sox2), which is required to maintain the properties of undifferentiated neural stem cells. In neuronal model Neuro2a cells, knockdown of OCTN1 by siRNA reduced the uptake of [(3)H]ERGO with concomitant up-regulation of oxidative stress marker HO-1 and Sox2, and down-regulation of neurite outgrowth marker GAP43. Interestingly, the siRNA knockdown decreased the number of differentiated Neuro2a cells showing long neurites, but increased the total number of cells. Thus, OCTN1 is involved in cellular differentiation, but inhibits their proliferation, possibly via the regulation of cellular oxidative stress. This is the first evidence that OCTN1 plays a role in neuronal differentiation and proliferation, which are required for brain development.
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Schauss AG, Vértesi A, Endres JR, Hirka G, Clewell A, Qureshi I, Pasics I. Evaluation of the safety of the dietary antioxidant ergothioneine using the bacterial reverse mutation assay. Toxicology 2010; 278:39-45. [DOI: 10.1016/j.tox.2010.07.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Accepted: 07/22/2010] [Indexed: 11/16/2022]
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Nakamura T, Yoshida K, Yabuuchi H, Maeda T, Tamai I. Functional Characterization of Ergothioneine Transport by Rat Organic Cation/Carnitine Transporter Octn1 (slc22a4). Biol Pharm Bull 2008; 31:1580-4. [DOI: 10.1248/bpb.31.1580] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshimichi Nakamura
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | - Kenji Yoshida
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
| | | | - Tomoji Maeda
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
- Department of Neuroscience, Faculty of Pharmaceutical Sciences, Iwate Medical University
| | - Ikumi Tamai
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
- Department of Membrane Transport and Pharmacokinetics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
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Nakamura T, Sugiura S, Kobayashi D, Yoshida K, Yabuuchi H, Aizawa S, Maeda T, Tamai I. Decreased Proliferation and Erythroid Differentiation of K562 Cells by siRNA-induced Depression of OCTN1 (SLC22A4) Transporter Gene. Pharm Res 2007; 24:1628-35. [PMID: 17447122 DOI: 10.1007/s11095-007-9290-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2006] [Accepted: 03/01/2007] [Indexed: 11/28/2022]
Abstract
PURPOSE Recently, it was reported that OCTN1 transporter (SLC22A4) is associated with rheumatoid arthritis (RA) and Crohn's disease. Additionally, we reported that OCTN1 is expressed in hematopoietic cells, preferentially in erythroid cells. Accordingly, we assessed the physiological role of OCTN1 by examining the effect of knockdown of OCTN1 in blood cells using siRNA method. MATERIALS AND METHODS Vector-based short hairpin RNA (shRNA) was used to establish K562 cell line which shows stably decreased expression of OCTN1. The characteristic of knockdown of OCTN1 in K562 cells was investigated by cell proliferation, cell differentiation, and uptake of ergothioneine that is a good substrate of OCTN1. RESULTS Several clones of K562 cells exhibited significantly reduced expression of OCTN1 mRNA and protein. They also showed a decreased growth rate and butyrate-dependent differentiation to erythrocytes compared with control-vector transfected cells. In addition, uptake of [(3)H]ergothioneine by K562 cells suggested that Na(+)-dependent and high-affinity transporter which is similar to the characteristics of OCTN1 is functional. Moreover, uptake of ergothioneine by K562 cells which exhibit decreased-expression of OCTN1 was decreased in comparison with wild type K562 cells. CONCLUSIONS It was suggested that OCTN1 is involved in the transport of physiological compounds that are important for cell proliferation and erythroid differentiation.
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Affiliation(s)
- Toshimichi Nakamura
- Department of Molecular Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamasaki, Noda, Chiba, 278-8510, Japan
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Epand RM, Epand RF, Wong SC. Study of the ergothioneine concentration in the blood of individuals with diabetes mellitus. JOURNAL OF CLINICAL CHEMISTRY AND CLINICAL BIOCHEMISTRY. ZEITSCHRIFT FUR KLINISCHE CHEMIE UND KLINISCHE BIOCHEMIE 1988; 26:623-6. [PMID: 3230380 DOI: 10.1515/cclm.1988.26.10.623] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Ergothioneine concentrations in the blood of 113 patients with diabetes mellitus and 22 non-diabetic individuals were measured by high performance liquid chromatography. There is no statistically significant difference between the mean ergothioneine concentrations of the diabetic and non-diabetic populations but there are several significant differences within the diabetic population. Male diabetics have a higher ergothioneine concentration than female diabetics. Type II diabetics have a higher ergothioneine concentration than type I diabetics. Diabetics receiving a higher insulin dose have higher ergothioneine concentrations. There was no correlation of ergothioneine concentration with the concentration of haemoglobin A1 or with the number of years diabetic. It is suggested that zinc therapy may be beneficial for diabetics having a high concentration of blood ergothioneine.
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Affiliation(s)
- R M Epand
- Department of Biochemistry, McMaster University Health Sciences Centre, Hamilton, Ontario
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Abstract
Since its discovery at the turn of the century, attempts to define a physiological function for L-ergothioneine have been unsuccessful. This paper suggests several possible functions for this enigmatic compound or its metabolites. These include: transport of cations or carbon dioxide, catalysis of carboxylation or decarboxylation reactions, mediation of thyroid or antithyroid function, histaminic or antihistaminic action, and cholinergic or anticholinergic action.
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