by University of Otago Figure 1. H4 variants identified in the cohort. (A) Highly recurrent variants were found in six different H4 genes (H4C3, H4C4, H4C5, H4C6, H4C9, and H4C11), which all encode an identical protein. Aggregate prevalence of disease-causing amino acid changes is also shown. The N-terminal methionine is cleaved from histone H4, and therefore...