Peptide plasminogen activators
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United States of America Patent
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Nov 2, 1999
Issued Date -
N/A
app pub date -
Feb 13, 1997
filing date -
Dec 23, 1985
priority date (Note) -
Expired
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Abstract
Novel polypeptide compositions based on the amino acid sequence of tissue plasminogen activator (tPA) are provided having improved properties over natural tissue plasminogen activator. Particularly, enhanced specific activity, reduced response to inhibition by plasminogen activator inhibitor, fibrin stimulation of plasminogenolytic activity and/or enhanced affinity to fibrin surfaces are provided by modifying one or more loci by deletions or substitutions. One or both of the N- or C-termini may be modified.
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