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Number density distributions ρ of amino acids in the projection domain of 3RS isoform as a function of distance z at different values of surface charge density σ (a), and the distribution function of the free ends of projections (b). Values of σ are shown in the figures. (Solid lines) Theoretical predictions according to Eqs. 14 and 16 in the Appendix 2, shifted by δz ≈ 0.2H0.
