A curated catalogue of human genomic structural variation




Variant Details

Variant: esv2758798



Internal ID9634257
Landmark
Location Information
TypeCoordinatesAssemblyOther Links
Innerchr20:47133706..47165330hg38UCSC Ensembl
Innerchr20:45762345..45793967hg19UCSC Ensembl
Innerchr20:45195752..45227374hg18UCSC Ensembl
Innerchr20:45195752..45227374hg17UCSC Ensembl
Cytoband20q13.12
Allele length
AssemblyAllele length
hg3831625
hg1931623
hg1831623
hg1731623
Variant TypeCNV loss
Copy Number
Allele State
Allele Origin
Probe Count
Validation Flag
Merged StatusM
Merged Variants
Supporting Variantsesv2756741
SamplesNA18990
Known GenesEYA2
MethodSNP array
AnalysisThe algorithm used to call CNVs using the 500K EA platform was developed to accurately define CNV regions using a large set of reference samples and is described in detail in a separate publication (Komura 2006). The algorithm contains three major parts: 1) Intensity pre-processing using an improved version of Genomic Imbalance Map (GIM) (Ishikawa et al. 2005), including probe selection, noise reduction, normalization, and intensity ratio adjustment based on affinity differences between alleles of a SNP, 2) CNV extraction, which identifies CNVs from all pair-wise comparisons using a modified SW-ARRAY, and 3) A copy number inference step which utilizes signal ratios and SNP information to more precisely define CNV boundaries and the copy number within each region.
PlatformAffymetrix GeneChip Early Access Mapping 500K Set Array (250K_Nsp_SNP)
Comments
ReferenceRedon_et_al_2006
Pubmed ID17122850
Accession Number(s)esv2758798
Frequency
Sample Size270
Observed Gain0
Observed Loss1
Observed Complex0
Frequencyn/a


Hosted by The Centre for Applied Genomics
Grant support for DGV
Please read the usage disclaimer