Ontology highlight
ABSTRACT:
SUBMITTER: Cemazar M
PROVIDER: S-EPMC156273 | biostudies-literature | 2003 May
REPOSITORIES: biostudies-literature
Cemazar Masa M Zahariev Sotir S Lopez Jakob J JJ Carugo Oliviero O Jones Jonathan A JA Hore P J PJ Pongor Sandor S
Proceedings of the National Academy of Sciences of the United States of America 20030430 10
The oxidative folding of the Amaranthus alpha-amylase inhibitor, a 32-residue cystine-knot protein with three disulfide bridges, was studied in vitro in terms of the disulfide content of the intermediate species. A nonnative vicinal disulfide bridge between cysteine residues 17 and 18 was found in three of five fully oxidized intermediates. One of these, the most abundant folding intermediate (MFI), was further analyzed by (1)H NMR spectroscopy and photochemically induced dynamic nuclear polariz ...[more]