Variant Details

Variant: nsv470890

Internal ID

15557450

Landmark

Location Information

Type	Coordinates	Assembly	Other Links
Inner	chr21:22066825..22265192	hg38	UCSC Ensembl
Inner	chr21:23439144..23637512	hg19	UCSC Ensembl
Inner	chr21:22361015..22559383	hg18	UCSC Ensembl

Cytoband

21q21.1

Allele length

Assembly	Allele length
hg38	198368
hg19	198369
hg18	198369

Variant Type

CNV loss

Copy Number

Allele State

Allele Origin

Probe Count

Validation Flag

Merged Status

Merged Variants

Supporting Variants

nssv544770, nssv544771

Samples

HGDP00864, HGDP00875

Known Genes

LINC00308

Method

SNP array

Analysis

We used the previously validated default quality control criteria, excluding samples with a log R ratio standard deviation of >0.28, a median B allele frequency of >0.55 or <0.45, or a B allele frequency drift of >0.002 (for more details see Wang et al. 2007). As the PennCNV algorithm is more sensitive and specific to CNVs covering greater numbers of SNPs in the HumanHap550 array, use of a minimum number of SNPs in CNV detection increases the reliability of CNV calls (with a consequent reduction in calls per individual). We set 10 SNPs as the minimum detection threshold in the algorithm.

Platform

Illumina HumanHap550 Genotyping BeadChip v3

Comments

Reference

Jakobsson_et_al_2008

Pubmed ID

18288195

Accession Number(s)

nsv470890

Frequency

Sample Size	443
Observed Gain	0
Observed Loss	2
Observed Complex	0
Frequency	n/a