title: A case of personal identification due to detection of rare DNA types from seminal stain.
abstract: Following a rape incident in an apartment in Japan, we were requested to perform a DNA analysis on a body fluid stain left on a bath towel to determine whether it could be attributed to the suspect. The acid phosphatase and prostatic-specific antigen tests confirmed it to be a seminal stain. Based on the DNA analysis by autosomal and Y-chromosome short tandem repeat (STR) systems, no inconsistency was found with the profile of the suspect with African ancestry. In this case, allele 21 of DYS390 at the Y-STR locus was examined, as it is reported to have a distinctly lower frequency in the Japanese population. Furthermore, the haplotype combinations of Y-STR at the DYS389I, DYS389II and DYS390 loci are powerful for personal identification, as these have not yet been found in the Japanese population.
authors.affiliation: Department of Legal Medicine, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan. tsutsumi@dent.nihon-u.ac.jp
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Tsutsumi
authors.forename: Toshinobu
authors.initials: T
authors.lastname: Komuro
authors.forename: Rei
authors.initials: R
authors.lastname: Mukoyama
authors.forename: Hikaru
authors.initials: H
authors.lastname: Izawa
authors.forename: Jian
authors.initials: J
authors.lastname: Tie
authors.forename: Seisaku
authors.initials: S
authors.lastname: Uchigasaki
mesh_terms: D044383:Black People / Q000235:genetics; D041322:Chromosomes, Human, Y / Q000235:genetics*; D016172:DNA Fingerprinting / Q000379:methods*; D005260:Female; D018732:Forensic Anthropology / Q000379:methods*; D005787:Gene Frequency; D006801:Humans; D007564:Japan; D008297:Male; D018895:Microsatellite Repeats; D011902:Rape; D012661:Semen / Q000737:chemistry*; D017422:Sequence Analysis, DNA