IHB OpenIR  > 水生生物分子与细胞生物学研究中心  > 期刊论文
Molecular analysis and functions of p53R2 in zebrafish
Shang, Hanqiao; Li, Qing; Feng, Guohui; Cui, Zongbin; Cui, ZB, Chinese Acad Sci, Inst Hydrobiol, Key Lab Biodivers & Conservat Aquat Organism, 7 Donghu Rd, Wuhan 430072, Hubei, Peoples R China; zbcui@ihb.ac.cn
2011
Source PublicationGENE
ISSN0378-1119
Volume475Issue:1Pages:30-38
Abstractp53R2 is a newly identified small subunit of ribonucleotide reductase and plays a pivotal role in the supply of dNTPs for genomic DNA repair and mitochondrial DNA synthesis, but little is known about its functions in zebrafish. Herein, we obtained the cDNA of zebrafish p53R2 that shares 72.8% and 72.5% amino acid identities with human p53R2 and zebrafish R2, respectively. Residues crucial for enzymatic activity are highly conserved among p53R2 proteins from different species. p53R2 in zebrafish was maternally expressed, its transcripts were detected in developing embryos and all adult tissues examined. A 250-bp minimal promoter upstream of the translational initiation site was identified to drive basal expression of p53R2 in a p53-independent manner. Expression of p53R2 was induced by DNA-damaging reagents CPT or MMS, but suppressed by p53-knockdown in zebrafish embryos. Moreover, p53R2 was mainly distributed in the cytoplasm of cells under normal condition and upon DNA damage. Furthermore, overexpression of p53R2 attenuated apoptosis of embryonic cells caused by CPT or MMS treatment and protected developing embryos from death. Therefore, functions of p53R2 in zebrafish are closely associated with its activity in DNA repair and synthesis. (C) 2010 Elsevier B.V. All rights reserved.
KeywordZebrafish P53r2 Dna Damage Dna Synthesis Genotoxicity
Department[Shang, Hanqiao; Li, Qing; Feng, Guohui; Cui, Zongbin] Chinese Acad Sci, Inst Hydrobiol, Key Lab Biodivers & Conservat Aquat Organism, Wuhan 430072, Hubei, Peoples R China; [Shang, Hanqiao; Feng, Guohui] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Subject AreaGenetics & Heredity
Funding OrganizationNational Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001]
Indexed BySCI
Language英语
WOS IDWOS:000288936100004
Funding OrganizationNational Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001] ; National Natural Science Foundation of China [30671602, 30871442, 30623001]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/15674
Collection水生生物分子与细胞生物学研究中心_期刊论文
Corresponding AuthorCui, ZB, Chinese Acad Sci, Inst Hydrobiol, Key Lab Biodivers & Conservat Aquat Organism, 7 Donghu Rd, Wuhan 430072, Hubei, Peoples R China; zbcui@ihb.ac.cn
Recommended Citation
GB/T 7714
Shang, Hanqiao,Li, Qing,Feng, Guohui,et al. Molecular analysis and functions of p53R2 in zebrafish[J]. GENE,2011,475(1):30-38.
APA Shang, Hanqiao,Li, Qing,Feng, Guohui,Cui, Zongbin,Cui, ZB, Chinese Acad Sci, Inst Hydrobiol, Key Lab Biodivers & Conservat Aquat Organism, 7 Donghu Rd, Wuhan 430072, Hubei, Peoples R China,&zbcui@ihb.ac.cn.(2011).Molecular analysis and functions of p53R2 in zebrafish.GENE,475(1),30-38.
MLA Shang, Hanqiao,et al."Molecular analysis and functions of p53R2 in zebrafish".GENE 475.1(2011):30-38.
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