BY RON MAGOLDA
Medical Products Department
E.I. du Pont de Nemours & Co.
Wilmington, Del.
" Two recent papers deal with the structure of DNA, which continues to be of vital importance in molecular biology. Studies on the biophysical properties of paralled stranded DNA and the X-ray determination of a synthetic DNA hairpin in the Z helix form have revealed basic principles of helix formation.
R. Chattopadhyaya, S. Ikuta, K Grzeskowiak, RE. Dickerson, “X-ray structure of a DNA hairpin molecule,” Nature, 334 (6178), 175-9, 14 July 1988.
J.H. van de Sande, N.B. ramsing M.W Germann, W Elhorst, B.W Kalisch, E. v. Kitzing, R.T. Pon, R.C. Clegg, T.M. Jovin, “Parallel stranded DNA,” Science, 241 (4865), 551-7,29 July 1988.
" The identification of a novel, nonsteroidal ecdysone agonist has resulted in the discovery of a rationally designed insecticide. Where nonsteroidal estrogenic agents have been abundant for some time, there is a paucity ...
