Core STR Loci Used in Human Identity Testing
Common sets of short tandem repeat (STR) markers or "core loci" are required for entry of DNA genotype data into national or international databases used to link serial crimes and offenders. Core loci, like a single currency in a financial sense, permits equivalent genetic information to be shared and compared. These same STR loci are often used in other applications of human identity testing such as parentage testing and missing persons and mass disaster investigations due to the availability of commercial STR kits. It is worth noting that these core STR loci occur in between genes where a high degree of variability is tolerated and are thus not directly responsible for physical traits such as hair color or eye color or genetic diseases.
For more information, see: Butler, J.M. (2006) Genetics and genomics of core STR loci used in human identity testing. J. Forensic Sci. 51(2): 253-265.
Expanded U.S. Core Loci (required after January 1, 2017): original 13 STRs CSF1PO, FGA, TH01, TPOX, VWA, D3S1358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11 and additional 7 STRs D1S1656, D2S441, D2S1338, D10S1248, D12S391, D19S433, D22S1045, and Amelogenin
For more information, see Hares, D.R. (2015) Selection and implementation of expanded CODIS core loci in the United States. Forensic Sci. Int. Genet. 17:33-34
DNA17 (required after July 2014):
Last Updated: 08/26/2015