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Gowsalya R, Ravi C, Nachiappan V. Human OVCA2 and its homolog FSH3-induced apoptosis in Saccharomyces cerevisiae. Curr Genet 2021; 67:631-640. [PMID: 33715035 DOI: 10.1007/s00294-021-01171-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 01/26/2023]
Abstract
Mammalian ovarian tumor suppressor candidate 2 (OVCA2) gene belongs to the family of serine hydrolase (FSH). This study aimed to elucidate the functional similarities of OVCA2 with its yeast homolog genes (FSH1, FSH2, and FSH3) regarding apoptosis. We found that the expression of OVCA2 in Saccharomyces cerevisiae increased production of reactive oxygen species (ROS), decreased cell growth, disturbed mitochondrial morphology, reduced membrane potential, increased chromatin condensation, and externalization of phosphatidylserine (PS) (annexin V/propidium iodide staining) indicating induced apoptotic cell death in yeast. We also showed that complementation of OVCA2 in fsh3Δ cells reduced cell growth and increased the apoptotic phenotypes. Collectively, our results suggest that complementation of human OVCA2 in fsh3Δ cells induced apoptosis in S. cerevisiae.
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Affiliation(s)
- Ramachandran Gowsalya
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620024, India
| | - Chidambaram Ravi
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620024, India
| | - Vasanthi Nachiappan
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620024, India.
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2
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FSH1 encodes lysophospholipase activity in Saccharomyces cerevisiae. Biotechnol Lett 2020; 43:279-286. [PMID: 32920715 DOI: 10.1007/s10529-020-03004-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/08/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVES To elucidate the role of FSH1 (family of serine hydrolase) in lipid homeostasis. RESULTS Proteins in various species containing alpha/beta hydrolase domain are known to be involved in lipid metabolism. In silico analysis of the FSH1 gene in Saccharomyces cerevisiae revealed the presence of alpha/beta hydrolase domain (ABHD) and a lipase motif (GXSXG), however its function in lipid metabolism remained elusive. The overexpression of FSH1 in WT and fsh1Δ cells showed a significant reduction in the cellular phospholipid levels and an increase in the triacylglycerol levels and lipid droplet (LD) number. Furthermore, the purified recombinant protein Fsh1p was identified as a lysophospholipase that specifically acts on lysophosphatidylserine (LPS) and impacts the lipid homeostasis in S. cerevisiae. CONCLUSIONS These results depicted that Fsh1p has a role on lipid homeostasis and is a lysophospholipase that hydrolyzes lysophosphatidylserine (LPS).
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Bun JS, Slack MD, Schemenauer DE, Johnson RJ. Comparative analysis of the human serine hydrolase OVCA2 to the model serine hydrolase homolog FSH1 from S. cerevisiae. PLoS One 2020; 15:e0230166. [PMID: 32182256 PMCID: PMC7077851 DOI: 10.1371/journal.pone.0230166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/20/2020] [Indexed: 11/22/2022] Open
Abstract
Over 100 metabolic serine hydrolases are present in humans with confirmed functions in metabolism, immune response, and neurotransmission. Among potentially clinically-relevant but uncharacterized human serine hydrolases is OVCA2, a serine hydrolase that has been linked with a variety of cancer-related processes. Herein, we developed a heterologous expression system for OVCA2 and determined the comprehensive substrate specificity of OVCA2 against two ester substrate libraries. Based on this analysis, OVCA2 was confirmed as a serine hydrolase with a strong preference for long-chain alkyl ester substrates (>10-carbons) and high selectivity against a variety of short, branched, and substituted esters. Substitutional analysis was used to identify the catalytic residues of OVCA2 with a Ser117-His206-Asp179 classic catalytic triad. Comparison of the substrate specificity of OVCA2 to the model homologue FSH1 from Saccharomyces cerevisiae illustrated the tighter substrate selectivity of OVCA2, but their overlapping substrate preference for extended straight-chain alkyl esters. Conformation of the overlapping biochemical properties of OVCA2 and FSH1 was used to model structural information about OVCA2. Together our analysis provides detailed substrate specificity information about a previously, uncharacterized human serine hydrolase and begins to define the biological properties of OVCA2.
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Affiliation(s)
- Jessica S. Bun
- Department of Chemistry and Biochemistry, Butler University, Indianapolis, Indiana, United States of America
| | - Michael D. Slack
- Department of Chemistry and Biochemistry, Butler University, Indianapolis, Indiana, United States of America
| | - Daniel E. Schemenauer
- Department of Chemistry and Biochemistry, Butler University, Indianapolis, Indiana, United States of America
| | - R. Jeremy Johnson
- Department of Chemistry and Biochemistry, Butler University, Indianapolis, Indiana, United States of America
- * E-mail:
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Garcia-Orozco KD, Cinco-Moroyoqui F, Angulo-Sanchez LT, Marquez-Rios E, Burgos-Hernandez A, Cardenas-Lopez JL, Gomez-Aguilar C, Corona-Martinez DO, Saab-Rincon G, Sotelo-Mundo RR. Biochemical Characterization of a Novel α/β-Hydrolase/FSH from the White Shrimp Litopenaeus vannamei. Biomolecules 2019; 9:E674. [PMID: 31683580 PMCID: PMC6921030 DOI: 10.3390/biom9110674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/28/2019] [Accepted: 10/29/2019] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Lipases and esterases are important enzymes that share the α/β hydrolase fold. The activity and cellular localization are important characteristics to understand the role of such enzymes in an organism. (2) Methods: Bioinformatic and biochemical tools were used to describe a new α/β hydrolase from a Litopenaeus vannamei transcriptome (LvFHS for Family Serine Hydrolase). (3) Results: The enzyme was obtained by heterologous overexpression in Escherichia coli and showed hydrolytic activity towards short-chain lipid substrates and high affinity to long-chain lipid substrates. Anti-LvFHS antibodies were produced in rabbit that immunodetected the LvFSH enzyme in several shrimp tissues. (4) Conclusions: The protein obtained and analyzed was an α/β hydrolase with esterase and lipase-type activity towards long-chain substrates up to 12 carbons; its immunodetection in shrimp tissues suggests that it has an intracellular localization, and predicted roles in energy mobilization and signal transduction.
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Affiliation(s)
- Karina D Garcia-Orozco
- Laboratorio de Estructura Biomolecular. Centro de Investigacion en Alimentacion y Desarrollo, A.C. 83304 Hermosillo, Sonora, Mexico.
| | - Francisco Cinco-Moroyoqui
- Departamento de Investigación y Posgrado en Alimentos. Universidad de Sonora, 83000 Hermosillo, Sonora, Mexico.
| | - Lucía T Angulo-Sanchez
- Laboratorio de Estructura Biomolecular. Centro de Investigacion en Alimentacion y Desarrollo, A.C. 83304 Hermosillo, Sonora, Mexico.
| | - Enrique Marquez-Rios
- Departamento de Investigación y Posgrado en Alimentos. Universidad de Sonora, 83000 Hermosillo, Sonora, Mexico.
| | - Armando Burgos-Hernandez
- Departamento de Investigación y Posgrado en Alimentos. Universidad de Sonora, 83000 Hermosillo, Sonora, Mexico.
| | - Jose L Cardenas-Lopez
- Departamento de Investigación y Posgrado en Alimentos. Universidad de Sonora, 83000 Hermosillo, Sonora, Mexico.
| | - Carolina Gomez-Aguilar
- Laboratorio de Estructura Biomolecular. Centro de Investigacion en Alimentacion y Desarrollo, A.C. 83304 Hermosillo, Sonora, Mexico.
| | - David O Corona-Martinez
- Departamento de Ciencias de la Salud, Universidad de Sonora, Cd. 85040 Obregon, Sonora, Mexico.
| | - Gloria Saab-Rincon
- Departamento de Ingeniería Celular & Biocatalisis, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, 62250 Cuernavaca, Morelos, Mexico.
| | - Rogerio R Sotelo-Mundo
- Laboratorio de Estructura Biomolecular. Centro de Investigacion en Alimentacion y Desarrollo, A.C. 83304 Hermosillo, Sonora, Mexico.
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FSH1 overexpression triggers apoptosis in Saccharomyces cerevisiae. Antonie Van Leeuwenhoek 2019; 112:1775-1784. [DOI: 10.1007/s10482-019-01310-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 07/26/2019] [Indexed: 10/26/2022]
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Gowsalya R, Ravi C, Kannan M, Nachiappan V. FSH3 mediated cell death is dependent on NUC1 in Saccharomyces cerevisiae. FEMS Yeast Res 2019; 19:5333309. [DOI: 10.1093/femsyr/foz017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 02/17/2019] [Indexed: 12/13/2022] Open
Abstract
ABSTRACT
Family of Serine Hydrolases (FSH) members FSH1, FSH2 and FSH3 in Saccharomyces cerevisiae share conserved sequences with the human candidate tumor suppressor OVCA2. In this study, hydrogen peroxide (H2O2) exposure increased the expression of both mRNA and protein levels of FSH3 in wild-type (WT) yeast cells. The deletion of FSH3 improved the yeast growth rate under H2O2-induction as compared to WT control cells. The overexpression of FSH3 in WT yeast cells caused an apoptotic phenotype, including accumulation of reaction oxygen species, decreased cell viability and cell death. The double deletions fsh1Δ fsh2Δ, fsh1Δ fsh3Δ and fsh2Δ fsh3Δ displayed increased growth compared to WT cells. However, the overexpression of FSH3 effectively inhibited cell growth in all double deletions. Moreover, the overexpression of FSH3 in cells lacking NUC1 did not cause any growth defect in the presence or absence of H2O2. Our results suggest that FSH3 induced apoptosis of yeast in a NUC1 dependent manner.
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Affiliation(s)
- Ramachandran Gowsalya
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli – 620 024, Tamil Nadu, India
| | - Chidambaram Ravi
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli – 620 024, Tamil Nadu, India
| | - Muthukumar Kannan
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Vasanthi Nachiappan
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli – 620 024, Tamil Nadu, India
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Pediatric brain tumors: Update of proteome-based studies. J Proteomics 2018; 188:41-45. [PMID: 29471057 DOI: 10.1016/j.jprot.2018.02.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/30/2018] [Accepted: 02/09/2018] [Indexed: 11/23/2022]
Abstract
Pediatric brain tumors (PBTs) are the most common solid malignancies in childhood and continue to pose a serious burden to modern societies. Existing treatments impose debilitating effects on the developing child, highlighting the need for molecularly targeted treatments with reduced toxicity, as well as the necessity of markers that reliably assess efficacy of, and tumor response to targeted-therapies of PBTs. On this regard advances in technologies of protein identification and quantification, the large-scale, high-throughput investigation of the proteome, as well the newly-emerging field of "proteogenomics" aim to further our knowledge towards understanding the molecular pathophysiology of PBTs. This mini review article presents all updates on knowledge produced and published during the last years on PBT research derived from "omics" technologies, mainly involving protein research and proteomics.
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Azizi AA, Kang SU, Freilinger A, Gruber-Olipitz M, Chen WQ, Yang JW, Hengstschläger M, Slavc I, Lubec G. Mitosis-Dependent Protein Expression in Neuroblastoma Cell Line N1E-115. J Proteome Res 2008; 7:3412-22. [DOI: 10.1021/pr800149p] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amedeo A. Azizi
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Sung-Ung Kang
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Angelika Freilinger
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Mariella Gruber-Olipitz
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Wei-Qiang Chen
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Jae-Won Yang
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Markus Hengstschläger
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Irene Slavc
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
| | - Gert Lubec
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria, and Department of Medical Genetics, Obstetrics and Gynecology, Medical University of Vienna, Währinger Gürtel 18−20, A-1090 Vienna, Austria
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Afjehi-Sadat L, Yang JW, Pollak A, Kim DW, Choi SY, Lubec G. Structural and Functional Analysis of Hypothetical Proteins in Mouse Hippocampus from Two-Dimensional Gel Electrophoresis. J Proteome Res 2007; 6:711-23. [PMID: 17269727 DOI: 10.1021/pr060453o] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Protein profiling in five individual mouse strains showed strain-specific expression of three hypothetical proteins (HPs). As functional and structural assignment of HPs were based on predictions and low identity to known structures, HPs were identified by MALDI-TOF/TOF, and their proposed tentative function was determined by enzyme assays. Three identified HPs were extracted from gels and renatured, and pyridoxal phosphate phosphatase, inorganic pyrophosphate phosphatase, and antioxidant activities were revealed, findings in agreement with functional predictions.
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Affiliation(s)
- Leila Afjehi-Sadat
- Department of Pediatrics, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
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