The crystal structure of a cyclic form of a mutant of bovine pancreatic try
psin inhibitor has been solved at 1.0 Angstrom resolution. The protein was
synthesized by native chemical ligation and its structure is almost indisti
nguishable from the previously described recombinant form of the same mutan
t; however, the new loop containing the former termini became much better o
rdered. (C) 2001 Federation of European Biochemical Societies. Published by
Elsevier Science B.V. All rights reserved.