The geometry of DNA: a structural revision
This proposed structure for DNA is wholly founded upon mathematical
principles. Although the geometrical modification to the base pairings is
relatively minor, the resulting double helix manifests a clarity altogether
distinct from that offered by Crick and Watson and it would appear to
shed light upon a number of areas of continuing uncertainty.
• Geometric equations predict the dimensions of DNA’s structure. Not
only does the pentagonal geometry predict the helical dimensions but
it would also demonstrate ‘principle causation’.
• The pentagonal geometry provides the dynamics required to build a
consistent, stable and uniform helical structure and also establishes
why there should be consistently ten bases contained within a single
turn of the helix. Incidentally, when converted to the molecular
dimension I would certainly predict degrees of variation, certainly
between 9.5 and 10.5 bases per turn, but perhaps even more.
• Both the hollow centre and side-by-side structural formation ensure
instant access at any point within the helix. This would permit the
DNA (even circular) to open and close during its replication functions
without entangling itself.
• The modification to the base pairing would appear to be able to exist
in either the enol or keto formations.
• While the sugar-phosphate backbones will undoubtedly prove integral
to the stability of the helical structure, it is the geometry of the basepair
© Mark E. Curtis