The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 1993
Filed:
Aug. 09, 1991
Francis S Markland, Jr, Northridge, CA (US);
Anastassios D Retzios, Los Angeles, CA (US);
University of Southern California, Los Angeles, CA (US);
Abstract
Novel fibrinolytic zinc metalloproteinases exhibiting direct fibrinolytic activity in plasminogen free systems, no detectable plasminogen activation activity in vitro, and no observable systemic toxicity in vivo as exemplified by the absence of hemorrhagic activity, characterized by peptide bond cleavage specificities which are markedly different from those of the heretofore identified metalloproteinases. Several of the enzymes are further characterized by substantially reduced proteolytic activity (as measured by azocaseinolytic activity in vitro) relative to A.c.contortrix fibrolase. The novel fibrinolytic enzymes with reduced proteolytic activity generally exhibit levels of proteolytic activity less than about 70% of that exhibited by a fibrinolytic enzyme having the activity profile of the enzyme as isolated from A.c.contortrix venom.