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SNP absolute number or density between chromosomes

Hi,

I have VCF file with annotation of SNP for each chromosome. I would like to compare numbers (proportion) of different type of variants (intergenic, exonic, UTR etc.) between each chromosomes. I calculated percent of e.g. intron, exon in each chromosome: enter image description here

But it is just a percentages... It does not account the different length of chromosomes and other features. How can I better compare number of intergenic variants taking account of other features? Or other method?

Thank you in advance

snp annotated density

Did you try Variant Effect Predictor server at ENSEMBL using your VCF file?

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