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Developmental Validation of the AmpFlSTR Identifiler Plus PCR Amplification Kit: An Established Multiplex Assay with Improved Performance

NCJ Number
240846
Journal
Journal of Forensic Sciences Volume: 57 Issue: 2 Dated: March 2012 Pages: 453-465
Author(s)
Dennis Y. Wang, Ph.D.; Chien-Wei Chang, Ph.D.; Robert E. Lagace, B.A.; Lisa M. Calandro, M.P.H.; Lori K. Hennessy, Ph.D.
Date Published
March 2012
Length
13 pages
Annotation
Analysis of length polymorphism at short tandem repeat (STR) loci utilizing multiplex polymerase chain reaction (PCR) remains the primary method for genotyping forensic samples.
Abstract
Analysis of length polymorphism at short tandem repeat (STR) loci utilizing multiplex polymerase chain reaction (PCR) remains the primary method for genotyping forensic samples. The AmpFlSTR Identifiler Plus PCR Amplification Kit is an improved version of the AmpFlSTR Identifiler PCR Amplification Kit and amplifies the core CODIS loci: D3S1358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11, CSF1PO, FGA, TH01, TPOX, and vWA. Additional loci amplified in the multiplex reaction are the sex-determinant, amelogenin, and two internationally accepted loci, D2S1338 and D19S433. While the primer sequences and dye configurations were unchanged, the AmpFlSTR Identifiler Plus PCR Amplification Kit features an enhanced buffer formulation and an optimized PCR cycling protocol that increases sensitivity, provides better tolerance to PCR inhibitors, and improves performance on mixture samples. The AmpFlSTR Identifiler Plus PCR Amplification Kit has been validated according to the FBI/National Standards and Scientific Working Group on DNA Analysis Methods (SWGDAM) guidelines. The validation results support the use of the AmpFlSTR Identifiler Plus PCR Amplification Kit for human identity and parentage testing. Abstract published by arrangement with John Wiley & Sons.