Abstract:
:A screening assay has been developed to provide preliminary individualization of crime scene samples thus eliminating expensive, time-consuming short tandem repeat (STR) profiling of nonprobative samples. High resolution melting performed in a real-time PCR instrument is used to detect the slight melting differences between the length and sequence variations of 22 forensic STRs. Three STRs (vWA, D18S51, THO1) were chosen to develop an assay which was optimized for Mg++ concentration, annealing/extension time/temperature, assay volume, and bovine serum albumin addition. The assay was tested for reproducibility, uniformity for genotype, melting profile consistency, effects of inhibitors, and mixture effects. The assay could be used to determine DNA concentration when a standard curve is run simultaneously. Calculations of costs show that the assay can save significant time and money for a crime with many samples or suspects.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Nicklas JA,Noreault-Conti T,Buel Edoi
10.1111/j.1556-4029.2011.01981.xsubject
Has Abstractpub_date
2012-03-01 00:00:00pages
478-88issue
2eissn
0022-1198issn
1556-4029journal_volume
57pub_type
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