| Literature DB >> 7038679 |
W R Abrams, G Weinbaum, L Weissbach, H Weissbach, N Brot.
Abstract
The major serum inhibitor of proteolytic activity, alpha-1-proteinase inhibitor (alpha-1-PI), (or alpha-1-antitrypsin) can be readily inactivated by oxidation [Carp, H. & Janoff, A. (1978) Am. Rev. Resp. Dis. 118, 617-621]. This inactivation appears to be due to the oxidation of a critical methionine(s) in alpha-1-PI that is required for the inhibition of elastase activity. An enzyme from Escherichia coli that reduces methionine sulfoxide residues in protein [Brot, N., Weissbach, L., Werth, J. & Weissbach, H. (1981) Proc. Natl. Acad. Sci. USA 78, 2155-2158] can restore the biological inhibitory activity of canine oxidized alpha-1-PI.Entities:
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Year: 1981 PMID: 7038679 PMCID: PMC349292 DOI: 10.1073/pnas.78.12.7483
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205