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:
Apr. 28, 2020
Filed:
Jul. 27, 2016
Purdue Research Foundation, West Lafayette, IN (US);
Nien-Hwa Linda Wang, West Lafayette, IN (US);
Chongli Yuan, West Lafayette, IN (US);
Morgan H. Crawford, Jersey City, NJ (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
Methods of refolding proteins are provided, especially cysteine-containing proteins such as insulin, proinsulin, and analogues thereof. The methods make used of tandem folding via the addition, at two different time, of two different reducing agents. A first reversible reducing agent can be added to induce folding and, at a later time, a second irreversible reducing agent can be added to prevent and/or reverse the formation of aggregates via intermolecular sulfide bonds. The methods can be used to reform a variety of cysteine-containing proteins with high yield of the native form, e.g. about 60 mol %, 70 mol %, or more.