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Validation study of a 15-plex rapid STR amplification system for human identification
Junping Han1, Jing Sun2, Lei Zhao2
1Key Laboratory of Forensic Genetics, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Beijing, 100038, China; Technology Department of Chaoyang Sub-Bureau, Beijing Public Security Bureau, Beijing, 100102, China.
Abstract:
Conventional PCR amplification requires approximately 3h to complete and thus does not meet the requirements of rapid DNA analysis. The purpose of this study was to validate a rapid 15-plex PCR system that can amplify 14 autosomal short tandem repeat (STR) loci (i.e., D6S1043, D21S11, D7S820, CFS1PO, D2S1338, D3S1358, D13S317, D8S1179, D16S539, Penta E, D5S818, vWA, D18S51, and FGA) and Amelogenin. This system was validated by sensitivity, species specificity, inhibitor tests, sizing accuracy, stutter calculation, concordance tests, DNA mixture, and case sample tests according to the Scientific Working Group for DNA Analysis Methods (SWGDAM) guidelines and Chinese criteria. We found that the rapid 15-plex PCR system could shorten the amplification time to 37min and proved that it provides an alternative method for conventional PCR in human identification detection.
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