Claims for Patent: 5,827,721

Summary for Patent: 5,827,721

Title:	BH55 hyaluronidase
Abstract:	The invention features a purified hyaluronidase BH55 polypeptide isolated from a mammalian species, preferably bovine or human. The invention also features DNA encoding BH55, vectors and transformed host cells containing DNA encoding BH55, methods of making BH55 hyaluronidase polypeptides, and antibodies that specifically bind BH55.
Inventor(s):	Stern; Robert (San Francisco, CA), Frost; Gregory I. (San Francisco, CA), Hall; Jackson (San Francisco, CA), Shuster; Svetlana (San Francisco, CA), Colbern; Gail T. (Pacifica, CA), Formby; Bent (Santa Barbara, CA)
Assignee:	The Regents of the University of California (Oakland, CA)
Application Number:	08/919,089
Patent Claims:	1. An isolated DNA molecule encoding bovine BH55 hyaluronidase. 2. An isolated DNA molecule, or degenerate variants thereof, encoding bovine BH55 hyaluronidase. 3. The DNA molecule of claim 1, wherein said DNA molecule is operably linked to regulatory sequences for expression of said BH55 hyaluronidase; and wherein said regulatory sequences comprise a promoter. 4. A vector comprising the DNA molecule of claim 1. 5. A cultured transformed cell which contains the DNA molecule of claim 1. 6. A method of producing a BH55 hyaluronidase comprising: culturing a cell transformed with a DNA molecule encoding a BH55 hyaluronidase under conditions for expressing said DNA molecule, said DNA molecule being positioned for expression in said cell; and isolating said BH55 hyaluronidase. 7. The DNA molecule of claim 1, wherein the BH55 hyaluronidase comprises the amino acid sequence GPXPIYHIQEAVL (SEQ ID NO:1). 8. The DNA molecule of claim 1, wherein the BH55 hyaluronidase comprises the amino acid sequences a) Val-Leu-Xaa-Arg-Glu-Pro-Ala-Gly-Ala-Val-Ile-Xaa-Gly-Tyr-Gly-Thr-Pro-Arg-Al a-Thr-Val-Thr-Val-Thr-Leu-Xaa-Arg (SEQ ID NO: 2); b) Gly-Pro-Ser-Ala-His-Ser-Val-Leu (SEQ ID NO: 3); c) Met-Lys-Lys-Gly-Thr-Arg-Val-Lys-Xaa-Asp-Ser-Asn (SEQ ID NO: 4); d) Lys-Pro-Gly-Gly-Pro (SEQ ID NO: 5); and e) Xaa-Val-Phe-Gln-Val-Phe-Val-Ala-Xaa-Gly-Glu-Leu (SEQ ID NO: 6); where Xaa represents any one of the twenty naturally-occurring amino acids.

Details for Patent 5,827,721

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	May 05, 2004	5,827,721	2017-08-27
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	December 02, 2004	5,827,721	2017-08-27
Amphastar Pharmaceuticals, Inc.	AMPHADASE	hyaluronidase	Injection	021665	October 26, 2004	5,827,721	2017-08-27
Akorn, Inc.	HYDASE	hyaluronidase	Injection	021716	October 25, 2005	5,827,721	2017-08-27