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Self-consistent free energy splitting. According to Eq. 12, dimer physical properties split after three composition levels: 1), a nonlinear Chargaff split is trans-composition or z-controlled; 2), dimer cis-composition split is x,y-controlled; and 3), nucleotide 5′3′ order split (ordo-composition) also determines NN self-consistency relations. The scale to the right is in kcal/mol.
