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:    

Using CGG repeat number as allele nomenclature.
Alleles:

Allele Name	Allele Symbol	Description
15	15
17	17
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	28
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	40
41	41
42	42
43	43

References:
- Verkerk AJ, Pieretti M, Sutcliffe JS, Fu YH, Kuhl DP, Pizzuti A, Reiner O, Richards S, Victoria MF, Zhang FP, et al. "Identification of a gene (FMR-1) containing a CGG repeat coincident with a breakpoint cluster region exhibiting length variation in fragile X syndrome". Cell 65:905-14. (1991) 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