Description
This track displays the SNPs used in genotyping platforms.
Affymetrix 500K (250K Nsp and 250K Sty)
This annotation displays the SNPs available for genotyping with the
GeneChip Human Mapping 500K Array Set from Affymetrix. It is comprised of
two arrays: Nsp and Sty, which contain approximately 262,000 and 238,000 SNPs,
respectively.
Affymetrix 100K (50K HindIII and 50K XbaI)
This annotation displays the SNPs available for genotyping with the GeneChip
Human Mapping 100K Array Set from Affymetrix. It is comprised of two 50K
arrays: HindIII and XbaI.
Affymetrix 10K
This annotation displays the SNPs available for genotyping with the GeneChip
Human Mapping 10K Array Sets from Affymetrix. There are two versions of the
10K array; each contains approximately 10,000 SNPs.
Illumina 300K
This annotation displays the SNPs available for genotyping with Illumina's
HumanHap300 BeadChip. The HumanHap300 contains over 317,000 tagSNP markers
derived from the International HapMap Project.
References
Further information on the Affymetrix arrays is available at these sites:
Further information on the Illumina array is available from
Illumina.
Methods
Position, strand, and polymorphism data were obtained from Affymetrix and
supplemented with links to corresponding dbSNP rsIDs based on a positional
lookup into dbSNP build 125. In fewer than 2% of the cases, a dbSNP rsID was
not present in dbSNP build 125 at the Affymetrix array position. Reference
allele information was retrieved from the UCSC database based on Affymetrix
position and strand data.
Illumina data were supplied as rsIDs and was supplemented with position, strand,
and polymorphism data based on a name lookup into dbSNP build 125. Reference
allele information was retrieved from the UCSC database based on dbSNP position
and strand data.
Credits
Thanks to Venu Valmeekam from Affymetrix and Jeff Ohmen from Illumina for
providing these data.
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