Latest Bruce Stillman Stories
Building on earlier work exploring the complex choreography by which intricate cellular proteins interact with and copy DNA prior to cell division, scientists at the U.S. Department of Energy's Brookhaven National Laboratory and collaborators have captured a key step-molecular images showing how the enzyme that unwinds the DNA double helix gets drawn to and wrapped around its target.
One way of discovering a geneâ€™s function is to switch it off and observe how the loss of its activity affects an organism.
Against a backdrop of some of the world's most sophisticated biological research labs, Rep. Steve Israel (D-Huntington) this morning issued a challenge to his colleagues in Congress: immediately upon their return from summer recess, he urged, they should pass legislation that would reverse a recent Federal court decision that has brought embryonic stem cell research in the U.S. to a screeching halt.
Scientists at Cold Spring Harbor Laboratory (CSHL) have discovered how a protein long known to be an essential activator of DNA replication actually triggers this process in cells.
Team finds that Orc1, part of machinery that initiates DNA replication, prevents excess centrosome duplication.
- A handkerchief.
- Specifically— The legendary sweat-cloth; the handkerchief of St. Veronica, according to tradition miraculously impressed with the mask of Christ; also, the napkin about Christ's head (Johu xx. 7).
- In general, any miraculous portrait of Christ.