Life Science Database Archive
D-HaploDB

SNP List (Phase II)

Data detail

info Data name SNP List (Phase II)
info DOI
info Description of data contents

A list of SNPs in D2 (Phase II). SNP genotypes in D1 (Phase I, Perlegen 281K SNPs) and those determined using Affymetrix 500K Array for overlapping 74 CHM samples were merged and QC'ed. LD bins were then determined.

info Data file
File name:
dhaplo_d2_snp_list.zip
File size:
16.6MB
info Simple search URL
info Data acquisition method

Perlegen 281K arrays, Affymetrix 500K arrays

info Data analysis method

The analyses by Perlegen 281K arrays are described in Kukita et al. (2005). The analyses by Affymetrix 500K are described in Higasa et al. (2009). Affymetrix markers were mapped to NCBI Build 35 (Higasa mapping was on Build 36), and merged with Perlegen data. The original Affymetrix data contained a small fraction (< 1%) of SNPs that were genotyped heterozygote. These typings were judged to be errors because the materials were presumed to be homozygotes. Thus, all heterozygous calls (in Affymetrix data) were forced to be no calls. Many of the heterozygous calls were also low S/N calls and frequently irreproducible when tested. See "LD bin List" for the calculation of LD bins.

info Number of data entries

581,235 entries

Data itemDescription
RefSNP ID RefSNP ID (rs number) given by dbSNP. (Linked to dbSNP in Quick Search)
Affy/Perlegen ID SNP ID given by Affymetrix or Perlegen
Chromosome Chromosome number that each SNP resides
Position Chromosomal nucleotide position (NCBI Build 35) of each SNP
Alleles Alleles
MAF Minor allele frequency
Genotypes Genotypes for the 74 CHM samples
LD bin Name of LD bin (Linked to LD bin list in Quick Search)
tagSNP The flag that indicates whether the SNP is a tagSNP or not.
1: tagSNP
0: non-tagSNP
-: SNP not included in LD bin calculation (MAF<0.05)
Best tagSNP The flag that indicates whether the SNP is the best tagSNP or not.
1: Best tagSNP
0: non-best tagSNP
-: SNP not included in LD bin calculation (MAF<0.05)

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