References

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2. D Vergni, D. Santoni, Nullomers and High Order Nullomers in Genomic Sequences. PLoS One. 11, e0164540 (2016).

3. I Georgakopoulos-Soares, O. Yizhar-Barnea, I. Mouratidis, M. Hemberg, N. Ahituv, Absent from DNA and protein: genomic characterization of nullomers and nullpeptides across functional categories and evolution. Genome Biol. 22, 245 (2021).