Figure 1
From: Periodicity of SNP distribution around transcription start sites
Distribution of SNPs around TSSs. The distribution of the density of validated SNPs (no. of vSNPs per gene) at the positions relative to the TSSs of 10,171 genes are shown (gray). Noise filtering was performed using FFT. After the SNP density data was transformed to the frequency domain by means of an FFT, the one-sided low-pass Hanning filter for components below 50 nucleotides was applied. The denoised curve was obtained by the inverse FFT of the filtered array (magenta).