A curated catalogue of human genomic structural variation




Variant Details

Variant: essv18686



Internal ID9616653
Landmark
Location Information
TypeCoordinatesAssemblyOther Links
Innerchr4:69057414..69646742hg18UCSC Ensembl
Outerchr4:69057414..69666257hg18UCSC Ensembl
Innerchr4:69203585..69792913hg17UCSC Ensembl
Outerchr4:69203585..69812428hg17UCSC Ensembl
Cytoband4q13.2
Allele length
AssemblyAllele length
hg18608844
hg17608844
Variant TypeCNV loss
Copy Number
Allele State
Allele Origin
Probe Count
Validation Flag
Merged StatusS
Merged Variantsesv2757061
Supporting Variants
SamplesNA12056
Known GenesTMPRSS11E, UGT2B15, UGT2B17
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)essv18686
Frequency
Sample Size270
Observed Gain0
Observed Loss1
Observed Complex0
Frequencyn/a


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