Yeast Topoisomerase II bound to DNA
As recently [reported](http://www-als.lbl.gov/als/science/sci_archive/160topoII.html) in the ALSNews: > “The veil has finally been lifted on an enzyme that is critical to the process of DNA transcription and replication and is a prime target of antibacterial and anticancer drugs. Researchers at Berkeley Lab and the University of California, Berkeley, have produced the first three-dimensional structural images of…
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