ALFRED Site graphing information
      The ALlele FREquency Database   
ALFRED is a resource of gene frequency data on human populations
supported by the Yale Center for Medical Informatics.

ALFRED Estimated Heterozygosity Graph

Expected Heterozygosities for rs486408

Locus amylo-1, 6-glucosidase, 4-alpha-glucanotransferase (glycogen debranching enzyme, glycogen storage disease type III)

Expected heterozygosities are calculated as one minus the sum of the squares of the allele/haplotype frequencies (1-Σpi2). Expected heterozygosity values above the cutoff value (0.25) have red bars. All other expected heterozygosities have blue bars. The cutoff value can be changed with the field below the graph.

Geographic regionPopulation (Sample ID)Expected Heterozygosity
Scale (each color bar in scale = 0.25):Exp Het
EuropeEuropeans, Mixed(20)0.46
EastAsiaCambodians, Khmer(22)0.34
NorthAmericaMaya, Yucatan(13)0.26

© 2019 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