Allele Frequency Net Database
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India Tamil Nadu

Polymorphic Region:

Demographic Data

  Ethnic origin: Asian
  Geographic Region: South Asia
  Latitude: 11º 32' N
  Longitude: 78º 52' E
  Family: Not Known
  Urban/Rural: Urban and Rural

Sample Data

  Sample Size: 2492
  Test date: 2012
  Method(s): SSOP, SBT
  Source: Bone Marrow Registry
  Loci typed: A, B, C, DQB1, DRB1
  Additional notes: HLA haplotype frequencies were estimated using an expectation maximization algorithm Allele frequencies were then calculated by direct counting from estimated haplotype frequencies Data was collapsed to g Groups as defined in the report from the Immunogenomics Data Analysis Working Group of the 16th International HLA and Immunogenetics Workshop (Int J Immunogenetics 2013,40,46-53) Genotypes were then given at one field but haplotype and allele frequencies at 2 field, although the alleles named in allele frequency and haplotype data should be suffixed with "g" for example frequency of 24:02 is the frequency of 24:02g

Bibliographic Reference

  Author(s): Saranya Narayan, Martin Maiers, Mike Halagan, Arunadevi Sat
  Publication details: HLA-A, -B, -C, -DRB1 and –DQB1 haplotype frequencies from 2492 Cord Blood Units from Tamil speaking population from Tamil Nadu, India, Human Immunology short population report
  Author's e-mail:

Frequency Data

Allele Frequencies Haplotype Frequencies  Genotype Data
(download csv)
Ambiguity-resolved Genotype Data
(download csv)


Allele frequency net database (AFND) 2020 update: gold-standard data classification, open access genotype data and new query tools
Gonzalez-Galarza FF, McCabe A, Santos EJ, Jones J, Takeshita LY, Ortega-Rivera ND, Del Cid-Pavon GM, Ramsbottom K, Ghattaoraya GS, Alfirevic A, Middleton D and Jones AR Nucleic Acid Research 2020, 48:D783-8.
Liverpool, U.K.

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