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

Polymorphism Information

Frequency on Map:    

Allelic nomenclature is based on the number of repeat units.
Alleles:

Allele Name	Allele Symbol	Description
10	10
10.2	10.2
11	11
11.2	11.2
12	12
12.2	12.2
13	13
13.2	13.2
14	14
14.2	14.2
15	15
15.2	15.2
16	16
16.2	16.2
17	17
17.2	17.2
18	18
18.2	18.2
19	19
19.2	19.2
20	20
20.2	20.2
21	21
21.2	21.2
22	22
22.2	22.2
23	23
23.2	23.2
24	24
25	25
26	26
27	27
28	28
31.2	31.2
5	5
7	7
8	8
9	9
9.2	9.2
<11	<11
>22	>22

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.

- Straub RE, Speer MC, Luo Y, Rojas K, Overhauser J, Ott J, Gilliam TC. "A microsatellite genetic linkage map of human chromosome 18. ". Genomics. 15:48-56.. (1993) 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