Abstract
The InnoTyper 21® Human Identification kit consists of amelogenin and 20 bi-allelic Alus, retrotransposon markers existing abundantly in human genome. The InnoTyper 21® kit produces shorter amplicons (60-125 bp) than conventional short tandem repeat (STR) genotyping kit, then it is effective on the analysis of challengeable forensic samples including insufficient or highly degraded DNAs. Also, as the genotyping with InnoTyper21® kit is compatible with PCR and capillary electrophoresis, it is easy to incorporate into the workflow in forensic laboratories. In the internal validation of InnoTyper21® kit on sensitivity, degradation, and mixture studies for the evaluation in this study, we acquired full profiles on analyzing small concentration DNA (as low as 25 pg) and highly degraded DNA (up to 105 degradation index value). Through the Korean population study, forensic statistical parameters were investigated and a specific variant of T insertion in NBC51 was confirmed in six samples. Comparison of Korean population with five populations or 1000 Genomes Project data show Korean specific substructure. It is expected that the InnoTyper 21® kit will be used into the actual forensic cases, utilizing the population study investigated through this research.
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