ALFRED: allele frequency database
      The ALlele FREquency Database   
ALFRED is a resource of gene frequency data on human populations
supported by the U. S. National Science Foundation.
ALFRED detailed record information

Polymorphism Information

NameALFRED UIDLocus NameLocus Symbol
D7S820 tetranucleotide repeatSI001028LSema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3ASEMA3A
Synonyms: rs112714641 ;
Frequency on Map:    
Frequency Display Formats:     
Estimated Heterozygosity: 
Frequency Download:   
External Resources:  STRBase Record  dbSNP rs# Record  
References: See References
Polymorphism Description:  One of 13 CODIS Core STR markers. The common sequence motif of this simple tetranucleotide repeat is: (GATA)n.

Allelic nomenclature is based on the number of repeat units.
Alleles:
Allele NameAllele SymbolDescription
1010
10.110.1
10.210.2
10.310.3
1111
11.311.3
1212
1313
1414
1515
1616
1919
55
66
6.26.2
6.36.3
77
7.27.2
7.37.3
88
8.18.1
8.28.2
8.38.3
99
9.19.1
9.29.2
9.39.3

References:
- Sacchetti L, Calcagno G, Coto I, Tinto N, Vuttariello E, Salvatore F. "Efficiency of two different nine-loci short tandem repeat systems for DNA typing purposes". Clin Chem. 45:178-83.. (1999) Online citation.

© 2012 Kenneth K Kidd, Yale University. All rights reserved. The full Copyright Notification is also available.
Originally prototyped by Michael Osier with the aid of Kei Cheung
Upgrades and maintenance since 2002 by Haseena Rajeevan