Plot for CNVs overlapping ABCA1 and a cluster of olfactory receptor genes on chromosome 9. The Turkish CNV region is highlighted in green, with the longest transcripts for the overlapping genes plotted below. CNVs extending beyond the Turkish CNV are plotted above the chromosome. AD= Alzheimer’s disease, ADNI= Alzheimer’s Disease Neuroimaging Initiative, gnomAD-SV= genome aggregation database structural variants, MCI= mild cognitive impairment, NCRAD= National Centralized Repository for Alzheimer’s Disease and Related Dementias, NIA-LOAD= National Institute on Aging- late onset Alzheimer’s disease, UKBB= UK Biobank. *This CNV region encompasses heterozygous deletions reported in 1 MCI patient and 4 AD patients. **This CNV was reported in 3 AD patients.