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Title: Triallelic patterns in STR loci used for paternity analysis: evidence for a duplication in chromosome 2 containing the TPOX STR locus. Author: Lukka M, Tasa G, Ellonen P, Moilanen K, Vassiljev V, Ulmanen I. Journal: Forensic Sci Int; 2006 Dec 01; 164(1):3-9. PubMed ID: 16337759. Abstract: We report triallelic patterns in several short tandem repeat (STR) loci revealed by routine paternity testing using the commercial AMPFlSTR Profiler and AMPFlSTR SGMplus kits. One case where the TPOX-locus (2p25.3) produced three peaks from the blood sample of a child was analysed further. Quantitative polymerase chain reaction (QPCR) and STR typing of the DNAs of the family trio revealed a large (>1.59 Mb) duplication flanking the TPOX-locus in chromosome 2 in both the mother and child. The implications of such genetic anomalies for paternity testing are discussed.[Abstract] [Full Text] [Related] [New Search]