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Gene and protein composition of the human sperm chromatin. Hypothetical model of human sperm chromatin showing the histone-associated DNA constitution (a) and protein contents (b). The model is drawn at a scale and inspired by the known nucleo-protamine toroidal structures124 and the high-throughput sequencing data obtained from the analysis of retained human sperm nucleosomes after micrococcal nuclease digestion.43,44,45,51,52
