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About This Database

SNP List (Phase III)

Data description
Data name
SNP List (Phase III)
DOI
10.18908/lsdba.nbdc00036-002
Description of data contents
A list of SNPs in D3 (Phase III). The data is essentially the same as those described in Kukita et al. (2010) paper, but contains additional samples (CHM010 and CHM035) because their data were judged to be acceptable with regard to genotypes, though they were excluded at QC steps in the previous report. LD bins were then determined.
Data file
File name :
dhaplo_d3_snp_list.zip
File URL :
File size :
23.9MB
Simple search URL
http://togodb.biosciencedbc.jp/togodb/view/dhaplo_d3_snp_list#en
Data acquisition method

Affymetrix SNP 6.0

Data analysis method

A hundred complete hydatidiform moles (CHMs) were genotyped using Affymetrix SNP Array 6.0, and mapped on the human reference genome sequence, NCBI Build 36. Low log2R calls, calls judged to be in deleted regions (determined by CNV analysis), and heterozygous calls were forced to no calls, as described in the Kukita paper. After QCs by sample call rate and SNP call rate, the final data for 87 CHMs (876K SNPs) was obtained. See "LD bin List" for the calculation of LD bins.

Number of data entries

876,399 entries

Data detail
Data item Description
RefSNP ID

RefSNP ID (rs number) given by dbSNP. (Linked to dbSNP in Quick Search)

Affy/Perlegen ID

SNP ID given by Affymetrix

Chromosome

Chromosome number that each SNP resides

Position

Chromosomal nucleotide position (NCBI Build 36) of each SNP

Alleles

Alleles

MAF

Minor allele frequency

Genotypes

Genotypes for the 87 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: tagSNP0: 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 tagSNP0: non-best tagSNP-: SNP not included in LD bin calculation (MAF<0.05)