group members
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Postdoctoral Scholars

Brad Olsen
Office: 018 Sherman-Fairchild
Joint appointments: Tirrel Lab, Kornfield Lab
B.S. Chemical Engineering, MIT
Ph.D. Chemical Engineering, UC Berkeley
Shelly Tzlil
Office: 014 Sherman-Fairchild
Joint appointment: Tirrel Lab
B.Sc. Chemistry and Computer Science, Hebrew University
Ph.D. Physical Chemistry, Hebrew University

Graduate Students

Paul Pirogovsky
Office: 016 Sherman-Fairchild
B.S. Chemical Engineering, Oregon State University
Christina Ting
Office: 018 Sherman-Fairchild
B.S. Biochemistry, UT Austin

Research Interests:
Stochastic processes and statistical mechanics of biological systems, polymer physics

Cellulose Hydrolysis

Cellulosic ethanol has the potential to serve as a liquid fuel with a zero net carbon dioxide emission. In order to make the conversion process cost-efficient, it is critical to develop an understanding of the enzymatic hydrolysis. We are working on developing a kinetic model to answer the molecular mechanism by which cellulase enzymes processively peel off and hydrolyze a polymer chain from the crystalline cellulose.
In particular, why has the cellulase enzyme evolved into two physically separated domains connected by a long, flexible linker? How does the linker couple the dynamics of the two domains? What is the optimal linker length and/ or flexibility?
Jenny Witman
B.S. Chemical Engineering, Purdue University
M.S. Chemical Engineering, Caltech

Administrative Staff

Kathy Bubash
Office: 206 Spalding Lab
email: kathy at cheme dot caltech dot edu
phone: x4193