Thursday, April 19, 2012, 3pm
University of Maryland
and Physics of Proteins
A framework is presented for understanding the common character of
proteins. It is shown that the notion of a tube of non-zero
thickness allows one to bridge the conventional compact polymer phase
with a novel phase employed by Nature to house biomolecular structures.
We suggest that the structures of folded proteins are
selected based on geometrical considerations and are poised at the edge
of compaction, thus accounting for their versatility and flexibility.
We present a geometric explanation for why helices and sheets
are the building blocks of protein structures.