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:
Feb. 06, 2001
Filed:
Jul. 07, 1997
Seikgaka Corporation, Tokyo, JP;
Abstract
A crystallizable, purified chondroitinase ABC having a molecular weight of about 100,000 dalton by the measurement of the SDS-polyacrylamide gel electrophoresis (SDS-PAGE) and the measurement by the gel permeation chromatography method, having alanine as the N-terminal amino acid and proline as the C-terminal amino acid. A process for the purification of the crystallizable purified chondroitinase ABC comprising removing nucleic acid from an surfactant solution extract obtained from cells of chondroitinase ABC-producing microorganisms and chromatographically treating by concentration gradient elution using a weak cation exchange resin or a strong cation exchange resin. A composition comprising a chondroitinase and serum albumin, gelatin, or a nonionic surfactant.