| Internal ID | 8254555 | 
| Landmark |  | 
| Location Information |  | 
| Cytoband | 20q13.33 | 
| Allele length | | Assembly | Allele length |  | hg38 | 2108 |  | hg19 | 2108 |  | hg18 | 2108 | 
 | 
| Variant Type | CNV loss | 
| Copy Number |  | 
| Allele State |  | 
| Allele Origin |  | 
| Probe Count |  | 
| Validation Flag |  | 
| Merged Status | M | 
| Merged Variants |  | 
| Supporting Variants | essv5299005 | 
| Samples | NA18507 | 
| Known Genes | HAR1A, HAR1B | 
| Method | Sequencing | 
| Analysis | Copy number variations are detected using the SOLiD Human CNV Tool. Regions with poor mappability are filtered out from consideration and a log ratio of coverage is used to determine areas of increased copy number. A Hidden Markov Model converts increased coverage into discrete copy number states. | 
| Platform | Not specified | 
| Comments | originalFile=Yoruban_cnv.gff | 
| Reference | McKernan_et_al_2009 | 
| Pubmed ID | 19546169 | 
| Accession Number(s) | esv2537683 
 | 
| Frequency | | Sample Size | 1 |  | Observed Gain | 0 |  | Observed Loss | 1 |  | Observed Complex | 0 |  | Frequency | n/a | 
 |