Submitted by kfesenma on Tue, 2012-12-18 11:46
Protein engineers at Caltech have tapped into a hidden talent of one of nature's most versatile catalysts. The enzyme cytochrome P450 is nature's premier oxidation catalyst—a protein that typically promotes reactions that add oxygen atoms to other chemicals. Now the Caltech researchers have engineered new versions of the enzyme, unlocking its ability to drive a completely different and synthetically useful reaction that does not take place in nature.
Spring Teaching Assistant Orientation
Submitted by kfesenma on Thu, 2012-10-18 09:00
Chemists at Caltech have managed, for the first time, to simulate the biological function of a channel called the Sec translocon, which allows specific proteins to pass through membranes. The feat required bridging timescales from the realm of nanoseconds all the way up to full minutes, exceeding the scope of earlier simulation efforts by more than six orders of magnitude. The result is a detailed molecular understanding of how the translocon works.
Submitted by bbell2 on Mon, 2012-10-08 13:59
Sarah Reisman, assistant professor of chemistry at Caltech, is one of 10 winners of 2013 Arthur C. Cope Scholar Award from the American Chemistry Society. Winning in the "early career scholar" category, Reisman will accept the award at the annual meeting of the American Chemistry Society in Indianapolis in September 2013.
According to the award citation, Reisman was recognized for her Caltech research group's original contributions to the understanding of complex molecule synthesis and reaction development.
Submitted by ksvitil on Mon, 2012-09-03 19:01
Scientists and engineers around the world are working to find a way to power the planet using solar-powered fuel cells. Such green systems would split water during daylight hours, generating hydrogen that could be stored and used later to produce water and electricity. But robust catalysts are needed to drive the water-splitting reaction. Now Caltech chemists have determined the mechanism by which some highly effective cobalt catalysts work.