Antibiotics-resistant bacteria( NA and tobetter understand how this s...)

NA, and to better understand how this structure offers protection to the bacterial DNA. "We are currently investigating the actual signal that triggers the formation of the crystalline structure once subjected to starvation or stress and the signal that affects its fast disappearance once stress is eliminated," Minsky said.

"A rigidly ordered biological structure is generally considered to be incompatible with life. However, in living systems exposed to severe environmental assaults, intracellular crystalline assemblies may confer an efficient means for wide range protection. Indeed, ribosomes in brain cells of people suffering from dementia were found to form crystalline organizations. Moreover, DNA in sperm cells is highly ordered. We have now found this to be true in bacterial DNA as well and are trying to understand how general and significant the correlation between order and survival is," Minsky explained.

Accordingly, the Weizmann team has recently begun to study the correlation between the organization of DNA and fertility in human sperm cells.

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Contact: Jeffrey J. Sussman
Jeffrey@acwis.org
212-779-2500
American Committee for the Weizmann Institute of Science
1-Jul-1999

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