  In the framework of algebraic topology the closed sequence of 4-dimensional
polyhedra (algebraic polytopes) was defined. This sequence is started by the
polytope {240}, discovered by Coxeter, and is determined by the second
coordination sphere of 8-dimensional lattice E8. The second polytope of
sequence allows to determine a topologically stable rod substructure that
appears during multiplication by a non-crystallographic axis 40/11 of the
starting union of 4 tetrahedra with common vertex. When positioning the
appropriate atoms tin positions of special symmetry of the staring 4
tetrahedra, such helicoid determines an {\alpha}-helix. The third polytope of
sequence allows to determine the helicoidally-like union of rods with 12-fold
axis, which can be compare with Z-DNA structures. This model is defined as a
local lattice rod packing, contained within a surface of helicoidally similar
type, which ensures its topological stability, as well as possibility for it to
be transformed into other forms of DNA structures. Formation of such structures
corresponds to lifting a configuration degeneracy, and the stability of a state
- to existence of a point of bifurcation. Furthermore, in the case of DNA
structures, a second "security check" possibly takes place in the form of local
lattice (periodic) property using the lattices other than the main ones.
