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Association between single nucleotide polymorphisms in the hMSH3 gene and sporadic colon cancer with microsatellite instability

Abstract

The association between three single nucleotide polymorphisms (SNPs) in the hMSH3 gene and sporadic colon cancer with microsatellite instability (MSI) was analyzed. Of the three SNPs observed in this population, SNPs at residues 235 and 693 were novel, while that at residue 3133 was previously described. The SNPs at residues 235 and 3133 caused amino acid substitutions, V79I and T1045A, respectively. We analyzed the allele frequencies of the three SNPs in samples from 19 patients with sporadic colon cancer with MSI and 90 healthy controls. We found that the V79 allele frequency was significantly higher in the tumor samples than in controls. In addition, the frequency of the G693 allele showed a higher trend in the tumor samples than in controls. These results indicated that some SNPs in the hMSH3 gene were associated with colon cancer with MSI.

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Received: February 16, 2000 / Accepted: February 25, 2000

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Orimo, H., Nakajima, E., Yamamoto, M. et al. Association between single nucleotide polymorphisms in the hMSH3 gene and sporadic colon cancer with microsatellite instability. J Hum Genet 45, 228–230 (2000). https://doi.org/10.1007/s100380070031

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  • Key words Association
  • Allele frequency
  • hMSH3
  • Single nucleotide polymorphism (SNP)
  • Sporadic colon cancer
  • Microsatellite instability (MSI)

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