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Article

Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome

  • Authors:
    • Zilan Lv
    • Chuan Wang
    • Lixiang Wu
    • Bianqin Guo
    • Darong Zhang
    • Yang Zhang
    • Shengxing Huang
    • Minglin Ou
  • View Affiliations / Copyright

    Affiliations: Department of Laboratory Medicine, Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer Hospital, Chongqing 400030, P.R. China, Department of Gastroenterology, Chongqing General Hospital, Chongqing 400014, P.R. China, Medical Center of Stomatology, The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China, Clinical Medical Research Center, The Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
  • Pages: 987-992
    |
    Published online on: May 23, 2018
       https://doi.org/10.3892/mmr.2018.9063
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Abstract

Gardner syndrome (GS), a variant of familial adenomatous polyposis, is a rare genetic disorder with autosomal dominant inheritance, characterized by the presence of multiple intestinal polyps, multiple osteomas, dental abnormalities and soft tissue tumors. To date, only a few gene mutations have been demonstrated to be responsible for GS. To explore potential unknown mutations responsible for GS, the present study used whole‑exome sequencing of two affected individuals from a family with GS to identify a candidate mutation in mutL‑homolog (MLH)1. The two patients with GS were diagnosed based on a combination of clinical features, family history, physical examinations and cone‑beam computed tomographic imaging. Through whole‑genome sequencing, the present study subsequently identified a missense mutation in MLH1 (NM_000249.3:p.Tyr379Ser/c.1136A>C), which was further confirmed by Sanger sequencing. Furthermore, the amino acid residue p.Tyr379 was identified to be highly conserved among different species through sequence alignment with ClustalW2. In conclusion, the results identified for the first time a MLH1 missense mutation (NM_000249.3:​p.Tyr379Ser/c.1136A>C) in a Chinese family with GS, thus broadening the range of mutated genes associated with GS. This highlights the value of whole‑exome sequencing in identifying disease mutations in a family.
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Copy and paste a formatted citation
Spandidos Publications style
Lv Z, Wang C, Wu L, Guo B, Zhang D, Zhang Y, Huang S and Ou M: Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome. Mol Med Rep 18: 987-992, 2018.
APA
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y. ... Ou, M. (2018). Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome. Molecular Medicine Reports, 18, 987-992. https://doi.org/10.3892/mmr.2018.9063
MLA
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y., Huang, S., Ou, M."Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome". Molecular Medicine Reports 18.1 (2018): 987-992.
Chicago
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y., Huang, S., Ou, M."Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome". Molecular Medicine Reports 18, no. 1 (2018): 987-992. https://doi.org/10.3892/mmr.2018.9063
Copy and paste a formatted citation
x
Spandidos Publications style
Lv Z, Wang C, Wu L, Guo B, Zhang D, Zhang Y, Huang S and Ou M: Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome. Mol Med Rep 18: 987-992, 2018.
APA
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y. ... Ou, M. (2018). Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome. Molecular Medicine Reports, 18, 987-992. https://doi.org/10.3892/mmr.2018.9063
MLA
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y., Huang, S., Ou, M."Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome". Molecular Medicine Reports 18.1 (2018): 987-992.
Chicago
Lv, Z., Wang, C., Wu, L., Guo, B., Zhang, D., Zhang, Y., Huang, S., Ou, M."Identification of a mutL‑homolog 1 mutation via whole‑exome sequencing in a Chinese family with Gardner syndrome". Molecular Medicine Reports 18, no. 1 (2018): 987-992. https://doi.org/10.3892/mmr.2018.9063
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