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:
Oct. 31, 2000
Filed:
Nov. 19, 1998
Applicant:
Inventors:
Takeshi Ario, Okayama, JP;
Madoka Taniai, Okayama, JP;
Kozo Yamamoto, Okayama, JP;
Masashi Kurimoto, Okayama, JP;
Assignee:
Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435229 ; 435325 ; 43525233 ; 4353201 ; 536 232 ; 536 231 ;
Abstract
Disclosed are polypeptides which originate from mammal, having L-asparaginase activity. The polypeptides are easily prepared by applying recombinant DNA techniques to DNAs encoding the polypeptides and they exert satisfactory effects in the treatment and/or the prevention for diseases caused by tumor cells dependent on L-asparagine, and cause no substantial serious side effects even when administered to humans in relatively-high dose.