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|Title:||Recombinant techniques for production of novel natriuretic and vasodilator peptides|
|Abstract:||The cDNA sequence encoding porcine brain natriuretic peptide and related genes encoding canine and human peptides with natriuretic activity are disclosed. The gene is shown to make accessible the DNAs encoding analogous natriuretic peptides in other vertebrate species. The genes encoding these NPs can be used to effect modifications of the sequence to produce alternate forms of the NPs and to provide practical amounts of these proteins. The NPs of the invention can also be synthesized chemically. The invention peptides have the formula: ##STR1## wherein R.sup.1 is selected from the group consisting of: ##STR2## or a 10- to 109-amino acid sequence shown as the native upstream sequence for porcine, canine or human NP in FIG. 6, or a composite thereof; R.sup.2 is (OH), NH.sub.2, or NR'R" wherein R' and R" are independently lower alkyl (1-4C) or is ##STR3## or the amides (NH.sub.2 or NR'R") thereof, with the proviso that if formula (1) is and R.sup.1 is Asp-Ser-Gly-, R.sup.2 cannot be Asn-Val-Leu-Arg-Arg-Tyr. The peptides of the invention can be formulated into pharmaceutical compositions and used to treat conditions associated with high extracellular fluid levels, especially congestive heart failure.|
|Inventor(s):||Seilhamer; Jeffrey J. (Milpitas, CA), Lewicki; John A. (Los Gatos, CA), Scarborough; Robert M. (Belmont, CA), Porter; J. Gordon (Newark, CA)|
|Assignee:||California Biotechnology Inc. (Mountain View, CA)|
Patent Claim Types:|
see list of patent claims
|Compound; Composition; Use;|
|Country||Document Number||Publication Date||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Austria||126522||Sep 15, 1995|
|European Patent Office||0418308||Aug 16, 1995|
|Japan||2511160||Jun 26, 1996|
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