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

A Tour of ALFRED


What is ALFRED?

ALFRED is a free, web-accessible, curated compilation of allele frequency data on DNA sequence polymorphisms in anthropologically defined human populations. Data in ALFRED are linked to literature, molecular, and ethnographic databases. ALFRED is supported by a grant from the U.S. National Science Foundation to be an international resource for research and teaching in physical anthropology, human population genetics, and any other field that can benefit from easy access to data that are otherwise widely dispersed in the scientific literature.

What does ALFRED provide?

  • Over 35,000,000 frequency tables, and growing
  • Over 700 populations with descriptions and links
  • Populations divided by geographic region for easy browsing
  • Easy to use Map Interface for search and display
  • Easy to use Keyword search
  • Easily downloadable data for analysis
  • Over 650,000 sites typed for at least one population
  • Free ALFRED Newsletter when you register

Continue the Tour

© 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