Abstract
Studies of the primary structure of chromosomal DNA have revealed an interesting structural feature. Palindromic regions (sections of double-helical DNA with an axis of 2-fold rotational symmetry) were found in DNA from eukaryotes [l-6] , prokaryotes and viruses [7-131. The length of palindromic regions varies from a few to several thousand base pairs. In the present paper the three-dimensional structure (four-stranded helix) for palindromic regions is proposed. This structure differs from the cruciform structure suggested [ 141. The possible role of the four-stranded helical structure in the formation of the tertiary structure and functioning of the DNA molecule is discussed. For a preliminary description of our structure see [ 1.51 .
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
