Oxidized mucus proteinase inhibitor: a fairly potent neutrophil elastase inhibitor
نویسندگان
چکیده
منابع مشابه
Inhibition of neutrophil elastase by recombinant human proteinase inhibitor 9.
Proteinase inhibitor PI9 (PI9) is an intracellular 42-kDa member of the ovalbumin family of serpins that is found primarily in placenta, lung and lymphocytes. PI9 has been shown to be a fast-acting inhibitor of granzyme B in vitro, presumably through the utilization of Glu(340) as the P(1) inhibitory residue in its reactive site loop. In this report, we describe the inhibition of human neutroph...
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In the nanomolar enzyme and inhibitor concentration range, 1 mol of mucus proteinase inhibitor (MPI) inhibits 1 mol of neutrophil elastase, cathepsin G, trypsin, and chymotrypsin. In the micromolar concentration range, the enzyme:inhibitor binding stoichiometry is still 1:1 for elastase but shifts to 2:1 for the three other proteinases. These data could be confirmed by three nonenzymatic method...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1994
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj3030061