From: Borries Demeler <demeler@bioc09.v19.uthscsa.edu>
  To  : rasmb@bbri.harvard.edu
  Date: Fri, 1 Oct 1999 14:34:35 -0500 (CDT)

"fringe" extinction coefficient

Quick question:

What is the interference equivalent to an extinction coefficient under
absorbance optics, ie. how much of a fringe shift can I expect for a
given concentration of protein? How much variation is there for different
proteins? If it is constant, is there a published number and what is it?

TIA, -Borries