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. 2020 Sep 23;6(4):41. doi: 10.3390/ncrna6040041

Figure 4.

Figure 4

Up-to-date comparison of human functional ncPEPs with human peptides from coding regions. (A) Comparison of the size range between human ncPEPs and peptides from coding regions. (B) Comparison between human ncPEPs and peptides from coding regions according to the properties of the amino acids (hydrophobic, hydrophilic, and special). (C) Comparison between human ncPEPs and peptides from coding regions according to the chemistry of the R groups (aromatic R groups; nonpolar aliphatic R groups; negatively charged R groups; positively charged R groups; and polar uncharged groups). (D) Comparison between human ncPEPs and peptides from coding regions according to the amino acid distribution. Due to a not normally distributed dataset, data is presented using box plots with whiskers representing 1.5 times the interquartile range. (Mann–Whitney–Wilcoxon test with Benjamini & Hochberg correction for multiple testing; ns—not significant, * p < 0.05; ** p < 0.01; **** p < 0.0001).