Molecular cloning, characterization of copper/zinc superoxide dismutase and expression analysis of stress-responsive genes from Eisenia fetida against dietary zinc oxide

The full length cDNA of copper/zinc superoxide dismutase (Cu/Zn-SOD) from Eisenia fetida (E. fetida) was cloned (GenBank accession no. JN579648). Sequence characterization revealed that the cDNA contained characteristic Cu/Zn-SOD family signatures (45GFHVHEFGDNT55 and 138GNAGGRLACGVI149), cysteines...

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Veröffentlicht in:Comparative biochemistry and physiology. Toxicology & pharmacology 2012-03, Vol.155 (2), p.416-422
Hauptverfasser: Xiong, Wenguang, Bai, Ling, Muhammad, Rizwan-Ul-Haq, Zou, Mengjia, Sun, Yongxue
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container_title Comparative biochemistry and physiology. Toxicology & pharmacology
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Bai, Ling
Muhammad, Rizwan-Ul-Haq
Zou, Mengjia
Sun, Yongxue
description The full length cDNA of copper/zinc superoxide dismutase (Cu/Zn-SOD) from Eisenia fetida (E. fetida) was cloned (GenBank accession no. JN579648). Sequence characterization revealed that the cDNA contained characteristic Cu/Zn-SOD family signatures (45GFHVHEFGDNT55 and 138GNAGGRLACGVI149), cysteines (Cys-58 and-146) predicted to form one disulphide bond, Cu-binding (His-47, -49, -64 and -120) and Zn-binding (His-64, -72, -81 and Asp-84). They were essential for the structure and function of Cu/Zn-SOD. Differential expression of stress-responsive genes like Cu/Zn-SOD, catalase (CAT), heat shock protein 70 (Hsp70) and metallothionein (MT) was applied as potential biomarkers to assess their efficacy for the ecotoxicological effects of dietary zinc oxide (ZnO) on E. fetida. The results showed that the expression of Cu/Zn-SOD and MT increased to reach the highest levels of 6.22 and 7.68 fold in a dose-dependent manner at day 10 respectively. The highest expression of 3.03 fold of CAT was registered at day 10. The transient expression of Hsp70 without consistent time- or/and dose-dependent was observed. It implied that the transcriptional patterns of Cu/Zn-SOD, CAT and MT could serve as early warning signals in ecotoxicological assessment of dietary ZnO on earthworms while the expression of Hsp70 was not well done, which is helpful to monitoring and regulation of ZnO in veterinary application.
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JN579648). Sequence characterization revealed that the cDNA contained characteristic Cu/Zn-SOD family signatures (45GFHVHEFGDNT55 and 138GNAGGRLACGVI149), cysteines (Cys-58 and-146) predicted to form one disulphide bond, Cu-binding (His-47, -49, -64 and -120) and Zn-binding (His-64, -72, -81 and Asp-84). They were essential for the structure and function of Cu/Zn-SOD. Differential expression of stress-responsive genes like Cu/Zn-SOD, catalase (CAT), heat shock protein 70 (Hsp70) and metallothionein (MT) was applied as potential biomarkers to assess their efficacy for the ecotoxicological effects of dietary zinc oxide (ZnO) on E. fetida. The results showed that the expression of Cu/Zn-SOD and MT increased to reach the highest levels of 6.22 and 7.68 fold in a dose-dependent manner at day 10 respectively. The highest expression of 3.03 fold of CAT was registered at day 10. The transient expression of Hsp70 without consistent time- or/and dose-dependent was observed. 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Toxicology &amp; pharmacology</title><addtitle>Comp Biochem Physiol C Toxicol Pharmacol</addtitle><description>The full length cDNA of copper/zinc superoxide dismutase (Cu/Zn-SOD) from Eisenia fetida (E. fetida) was cloned (GenBank accession no. JN579648). Sequence characterization revealed that the cDNA contained characteristic Cu/Zn-SOD family signatures (45GFHVHEFGDNT55 and 138GNAGGRLACGVI149), cysteines (Cys-58 and-146) predicted to form one disulphide bond, Cu-binding (His-47, -49, -64 and -120) and Zn-binding (His-64, -72, -81 and Asp-84). They were essential for the structure and function of Cu/Zn-SOD. Differential expression of stress-responsive genes like Cu/Zn-SOD, catalase (CAT), heat shock protein 70 (Hsp70) and metallothionein (MT) was applied as potential biomarkers to assess their efficacy for the ecotoxicological effects of dietary zinc oxide (ZnO) on E. fetida. The results showed that the expression of Cu/Zn-SOD and MT increased to reach the highest levels of 6.22 and 7.68 fold in a dose-dependent manner at day 10 respectively. The highest expression of 3.03 fold of CAT was registered at day 10. The transient expression of Hsp70 without consistent time- or/and dose-dependent was observed. 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Bai, Ling ; Muhammad, Rizwan-Ul-Haq ; Zou, Mengjia ; Sun, Yongxue</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c411t-59cc9f2b9ac290e5b6adab53a3046dbdcfd8a5ad690b593805e9b96231e68b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Amino Acid Sequence</topic><topic>Animals</topic><topic>Base Sequence</topic><topic>Biomarker</topic><topic>biomarkers</topic><topic>Catalase</topic><topic>Catalase - genetics</topic><topic>cDNA cloning</topic><topic>Chromium</topic><topic>Cloning, Molecular</topic><topic>complementary DNA</topic><topic>Copper</topic><topic>Cysteine</topic><topic>Diet</topic><topic>Dietary ZnO</topic><topic>disulfide bonds</topic><topic>DNA, Complementary - chemistry</topic><topic>DNA, Complementary - genetics</topic><topic>dose response</topic><topic>earthworms</topic><topic>Ecotoxicological</topic><topic>Eisenia fetida</topic><topic>Gene Expression - drug effects</topic><topic>gene expression regulation</topic><topic>genes</topic><topic>heat-shock protein 70</topic><topic>HSP70 Heat-Shock Proteins - genetics</topic><topic>Hsp70 protein</topic><topic>Metallothionein</topic><topic>Metallothionein - genetics</topic><topic>molecular cloning</topic><topic>Molecular Sequence Data</topic><topic>monitoring</topic><topic>mRNA expression</topic><topic>nutrition assessment</topic><topic>Oligochaeta - enzymology</topic><topic>Oligochaeta - genetics</topic><topic>Phylogeny</topic><topic>Reverse Transcriptase Polymerase Chain Reaction</topic><topic>Sequence Analysis, DNA</topic><topic>Sequence Homology, Amino Acid</topic><topic>Stress, Physiological - genetics</topic><topic>Structure-function relationships</topic><topic>Superoxide dismutase</topic><topic>Superoxide Dismutase - classification</topic><topic>Superoxide Dismutase - genetics</topic><topic>Toxicity Tests - methods</topic><topic>Transcription</topic><topic>transcription (genetics)</topic><topic>Zinc</topic><topic>zinc oxide</topic><topic>Zinc Oxide - administration &amp; dosage</topic><topic>Zinc Oxide - toxicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiong, Wenguang</creatorcontrib><creatorcontrib>Bai, Ling</creatorcontrib><creatorcontrib>Muhammad, Rizwan-Ul-Haq</creatorcontrib><creatorcontrib>Zou, Mengjia</creatorcontrib><creatorcontrib>Sun, Yongxue</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Comparative biochemistry and physiology. 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Toxicology &amp; pharmacology</jtitle><addtitle>Comp Biochem Physiol C Toxicol Pharmacol</addtitle><date>2012-03-01</date><risdate>2012</risdate><volume>155</volume><issue>2</issue><spage>416</spage><epage>422</epage><pages>416-422</pages><issn>1532-0456</issn><eissn>1878-1659</eissn><abstract>The full length cDNA of copper/zinc superoxide dismutase (Cu/Zn-SOD) from Eisenia fetida (E. fetida) was cloned (GenBank accession no. JN579648). Sequence characterization revealed that the cDNA contained characteristic Cu/Zn-SOD family signatures (45GFHVHEFGDNT55 and 138GNAGGRLACGVI149), cysteines (Cys-58 and-146) predicted to form one disulphide bond, Cu-binding (His-47, -49, -64 and -120) and Zn-binding (His-64, -72, -81 and Asp-84). They were essential for the structure and function of Cu/Zn-SOD. Differential expression of stress-responsive genes like Cu/Zn-SOD, catalase (CAT), heat shock protein 70 (Hsp70) and metallothionein (MT) was applied as potential biomarkers to assess their efficacy for the ecotoxicological effects of dietary zinc oxide (ZnO) on E. fetida. The results showed that the expression of Cu/Zn-SOD and MT increased to reach the highest levels of 6.22 and 7.68 fold in a dose-dependent manner at day 10 respectively. The highest expression of 3.03 fold of CAT was registered at day 10. The transient expression of Hsp70 without consistent time- or/and dose-dependent was observed. It implied that the transcriptional patterns of Cu/Zn-SOD, CAT and MT could serve as early warning signals in ecotoxicological assessment of dietary ZnO on earthworms while the expression of Hsp70 was not well done, which is helpful to monitoring and regulation of ZnO in veterinary application.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>22137962</pmid><doi>10.1016/j.cbpc.2011.11.004</doi><tpages>7</tpages></addata></record>
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ispartof Comparative biochemistry and physiology. Toxicology & pharmacology, 2012-03, Vol.155 (2), p.416-422
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source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Amino Acid Sequence
Animals
Base Sequence
Biomarker
biomarkers
Catalase
Catalase - genetics
cDNA cloning
Chromium
Cloning, Molecular
complementary DNA
Copper
Cysteine
Diet
Dietary ZnO
disulfide bonds
DNA, Complementary - chemistry
DNA, Complementary - genetics
dose response
earthworms
Ecotoxicological
Eisenia fetida
Gene Expression - drug effects
gene expression regulation
genes
heat-shock protein 70
HSP70 Heat-Shock Proteins - genetics
Hsp70 protein
Metallothionein
Metallothionein - genetics
molecular cloning
Molecular Sequence Data
monitoring
mRNA expression
nutrition assessment
Oligochaeta - enzymology
Oligochaeta - genetics
Phylogeny
Reverse Transcriptase Polymerase Chain Reaction
Sequence Analysis, DNA
Sequence Homology, Amino Acid
Stress, Physiological - genetics
Structure-function relationships
Superoxide dismutase
Superoxide Dismutase - classification
Superoxide Dismutase - genetics
Toxicity Tests - methods
Transcription
transcription (genetics)
Zinc
zinc oxide
Zinc Oxide - administration & dosage
Zinc Oxide - toxicity
title Molecular cloning, characterization of copper/zinc superoxide dismutase and expression analysis of stress-responsive genes from Eisenia fetida against dietary zinc oxide
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