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International Journal of Legal Medicine

, Volume 110, Issue 1, pp 22–26 | Cite as

Sequence variation of allele 27 at the D1S80 locus

  • N. Harashima
  • C. Liu
  • Y. Katsuyama
  • M. Ota
  • H. Fukushima
Original Article

Abstract

In 180 unrelated Japanese individuals 18 examples of allele 27 were detected at the locus D1S80 (MCT118). On 6% polylacrylamide gels 5 out of these 18 alleles were found to migrate between allele 26 and allele 27, but closer to allele 27, and thus were labelled variants of allele 27. All 18 examples of allele 27 were sequenced and the results were compared. Although all had the same number of base pairs (578 bp) the five variants could be subdivided into three types V1, V2 and V3. The variants and the standard allele were composed of the same kinds of repeat units, but the order of arrangement was different. We investigated whether it was possible to distinguish the standard allele 27, and the variants V1, V2, and V3 by PCR-RFLP. EcoRII and MspI which have restriction sites within the repeat units were adopted as restriction enzymes. The variants could be discriminated from each other after treatment of the PCR fragments with EcoRII or MspI, followed by PAG electrophoresis.

Key words

D1S80 Allele variants Gene sequencing MspI EcoRII Cleavage site 

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Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  • N. Harashima
    • 1
  • C. Liu
    • 1
  • Y. Katsuyama
    • 1
  • M. Ota
    • 1
  • H. Fukushima
    • 1
  1. 1.Department of Legal MedicineShinshu University School of MedicineNaganoJapan

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