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:
Sep. 16, 2003
Filed:
Jan. 20, 2000
Method for the purification and aqueous fiber spinning of spider silks and other structural proteins
Applicant:
Inventors:
Charlene Mello, Rochester, MA (US);
Steven Arcidiacono, Bellingham, MA (US);
Michelle M. Butler, Auburn, MA (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K 1/00 ; C07K 1/400 ; C12P 2/100 ;
U.S. Cl.
CPC ...
C07K 1/00 ; C07K 1/400 ; C12P 2/100 ;
Abstract
Methods are described for the purification and spinning of recombinant and non-recombinant proteins. Specifically, the lysis of bacteria and purification of silk proteins occur in a single solution of organic acid. Bacterial proteins are hydrolyzed while the silk protein remains intact. Silk proteins remain soluble as they are concentrated into a aqueous-based mixture for fiber spinning.