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:
Jan. 03, 2012
Filed:
Nov. 22, 2007
Myeong-hee Yu, Seoul, KR;
Je-hyun Baek, Gwacheon-si, KR;
Cheolju Lee, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
The present invention relates to a thermostable alpha-1-antitrypsin mutein with a disulfide bond and a preparation method of the same, more precisely an alpha-1-antitrypsin mutein with improved thermostability, compared with the conventional thermostable alpha-1-antitrypsin mutein (Korean Patent No. 133252), resulted from the process of substituting the 168and 189amino acids of the alpha-1-antitrypsin with cysteines which are then linked by a disulfide bond, with keeping its alpha-1-antitrypsin activity unchanged, and a preparing method of the same. The thermostable alpha-1-antitrypsin mutein with a disulfide bond of the invention can be effectively used for a protein based therapeutic agent which is very stable in vivo, and can be applied further in various fields including in the development of a diagnostic reagent and in the preparation of an affinity column.