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Fujihara J, Yasuda T, Iida R, Ueki M, Sano R, Kominato Y, Inoue K, Kimura-Kataoka K, Takeshita H. Global analysis of genetic variations in a 56-bp variable number of tandem repeat polymorphisms within the human deoxyribonuclease I gene. Leg Med (Tokyo) 2015; 17:283-6. [PMID: 25771153 DOI: 10.1016/j.legalmed.2015.01.005] [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: 11/21/2014] [Revised: 01/18/2015] [Accepted: 01/30/2015] [Indexed: 11/25/2022]
Abstract
A 56-bp variable number of tandem repeat polymorphism is confirmed in intron 4 of the human deoxyribonuclease I (DNase I) gene (HumDN1). The purpose of the present study was to document global ethnic variations of allelic frequencies in HumDN1 VNTR polymorphisms. In this study, HumDN1 VNTR polymorphisms in 11 worldwide populations were examined by polymerase chain reaction and compared with those reported previously. Fifteen genotypes were identified in these 11 populations. Novel genotypes were found: 1/2 was observed in Ghanaians and mestizos, 3/6 was in Tamangs, 4/6 was in Tibetans and Nahuas, 6/6 was in Sinhalese. The African population showed the highest frequency for the HumDN1(∗)3 allele. Among Asian populations, the different genotype distribution was observed. The predominant allele in Mongolian, Korean, Japanese, and Chinese populations was HumDN1(∗)3, followed by HumDN1(∗)4, and then HumDN1(∗)5. In Chinese from South China, Tamangs, and Sinhalese, HumDN1(∗)4 and HumDN1(∗)5 were predominant. The allele frequency for HumDN1(∗)4 was high in three Mexican populations, but a significant difference was observed between Nahuas and Huicoles. Germans and Turks showed a similar distribution. This study is the first to show the existence of a certain genetic heterogeneity in the worldwide distribution of HumDN1 VNTR polymorphism.
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Affiliation(s)
- Junko Fujihara
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan.
| | - Toshihiro Yasuda
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Reiko Iida
- Division of Life Science, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Misuzu Ueki
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Japan
| | - Rie Sano
- Department of Legal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yoshihiko Kominato
- Department of Legal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ken Inoue
- Department of Public Health, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Kaori Kimura-Kataoka
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
| | - Haruo Takeshita
- Department of Legal Medicine, Shimane University Faculty of Medicine, 89-1 Enya, Izumo, Shimane 693-8501, Japan
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Dittmar M, Bischofs C, Matheis N, Poppe R, Kahaly GJ. A novel mutation in the DNASE1 gene is related with protein instability and decreased enzyme activity in thyroid autoimmunity. J Autoimmun 2009; 32:7-13. [DOI: 10.1016/j.jaut.2008.09.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 09/29/2008] [Accepted: 09/30/2008] [Indexed: 11/25/2022]
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Takeshita H, Soejima M, Koda Y, Yasuda T, Takatsuka H, Fujihara J. Gln222Arg (A2317G) polymorphism in the deoxyribonuclease I gene exhibits ethnic and functional differences. Clin Chem Lab Med 2009; 47:51-5. [DOI: 10.1515/cclm.2009.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Fujihara J, Yasuda T, Shiwaku K, Takeshita H. Frequency of a single nucleotide (A2317G) and 56-bp variable number of tandem repeat polymorphisms within the deoxyribonuclease I gene in five ethnic populations. Clin Chem Lab Med 2006; 44:1188-91. [PMID: 17032129 DOI: 10.1515/cclm.2006.225] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractClin Chem Lab Med 2006;44:1188–91.
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Affiliation(s)
- Junko Fujihara
- Department of Legal Medicine, Shimane University School of Medicine, Izumo, Japan
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Yasuda T, Kawai Y, Ueki M, Kishi K. Clinical applications of DNase I, a genetic marker already used for forensic identification. Leg Med (Tokyo) 2005; 7:274-7. [PMID: 15946886 DOI: 10.1016/j.legalmed.2004.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2004] [Accepted: 10/01/2004] [Indexed: 11/20/2022]
Abstract
This review primarily summarizes the clinical applications of deoxyribonuclease I (DNase I). Human DNase I exhibits polymorphism at both the protein and DNA level, and thus is potentially one of the best biochemical markers for forensic practice. Clinically, DNase I activity in serum can be used as a novel diagnostic marker for the early detection of acute myocardial infarction and transient myocardial ischemia. Furthermore, the DNase I gene is considered to be one of the susceptibility genes for gastric and colorectal carcinoma, and myocardial infarction. Over the last decade since the discovery of the utility of its genetic polymorphism for forensic purposes, research on DNase I has expanded into clinical applications.
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Affiliation(s)
- Toshihiro Yasuda
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Matsuoka-cho, Fukui 910-1193, Japan.
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Yasuda T, Iida R, Ueki M, Tsukahara T, Nakajima T, Kominato Y, Takeshita H, Yuasa I, Kishi K. A novel 56-bp variable tandem repeat polymorphism in the human deoxyribonuclease I gene and its population data. Leg Med (Tokyo) 2004; 6:242-5. [PMID: 15363449 DOI: 10.1016/j.legalmed.2004.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2004] [Revised: 06/25/2004] [Accepted: 07/12/2004] [Indexed: 11/28/2022]
Abstract
This study confirms the presence of a novel variable number of tandem repeats polymorphism, designated as HumDN1, in intron 4 of the human deoxyribonuclease I (DNase I) gene. Genotyping was performed without difficulty by PCR-amplification and separation by agarose gel electrophoresis in 423 Japanese, originating from four geographically diverse areas in Japan, and 89 Germans. The HumDN1 allele variability was due to different numbers of 56-bp repeat sequences, and five different alleles were distinguished with apparent size between 364 and 588 bp. Although there was a general uniformity for the polymorphism in the Japanese population, significant differences in genotype distribution were found between the Japanese and German populations. Furthermore, linkage disequilibrium between the HumDN1 and DNase I protein polymorphisms was revealed.
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Affiliation(s)
- Toshihiro Yasuda
- Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Matsuoka-cho, Fukui 910-1193, Japan
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Kishi K, Yasuda T, Takeshita H. DNase I: structure, function, and use in medicine and forensic science. Leg Med (Tokyo) 2001; 3:69-83. [PMID: 12935527 DOI: 10.1016/s1344-6223(01)00004-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this review, available structural data of deoxyribonucleases I (DNases I) from several mammalian species, hen, snake and frog are summarized. Comparative studies on enzymatic and immunological properties and glycosylation are discussed, and several evolutionary conclusions are presented. Over the past decade, the availability of new investigative tools, including sensitive methods of electrophoresis, detection and determination, and genetically modified DNase I models has resulted in a clearer understanding of the molecular mechanisms that connect the function and usefulness of DNase I in medicine and forensic science.
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Affiliation(s)
- K Kishi
- Department of Legal Medicine, Gunma University School of Medicine, 3-39-22 Showa, Maebashi, Japan.
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Iida R, Yasuda T, Aoyama M, Tsubota E, Kobayashi M, Yuasa I, Matsuki T, Kishi K. The fifth allele of the human deoxyribonuclease I (DNase I) polymorphism. Electrophoresis 1997; 18:1936-9. [PMID: 9420147 DOI: 10.1002/elps.1150181108] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The fifth allele, DNASE1*5, of human deoxyribonuclease I (DNase I) has been discovered. Polymerase chain reaction fragments containing exon 5 of the DNase I gene were screened for DNA polymorphism using single-strand conformation polymorphism (SSCP) analysis. DNAs from 114 unrelated Japanese and 81 German individuals were tested and a new variant was detected. By DNA sequencing analysis, this variant was found to be caused by a heterozygous G-A transition at nucleotide position 1227 that results in a Val to Met substitution at amino acid position 92 of the mature enzyme. The nucleotide substitution was also confirmed by mismatched polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) analysis. Genotyping of the variant could be carried out by three independent reactions based on PCR amplification, and phenotyping by isoelectric focusing followed by immunostaining. The results supported the presence of the fifth codominant allele, DNASE1*5, which generates a new isozyme.
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Affiliation(s)
- R Iida
- Department of Forensic Medicine, Fukui Medical University, Japan
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