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:
Jul. 22, 1997
Filed:
Apr. 20, 1994
Applicant:
Inventors:
Page W Caufield, Birmingham, AL (US);
Jan Novak, Birmingham, AL (US);
Assignee:
University of Alabama at Birmingham Research Foundation, Birmingham, AL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C07H / ;
U.S. Cl.
CPC ...
4352523 ; 4353201 ; 43524233 ; 4352534 ; 536 237 ;
Abstract
Certain bacteria indigenous to humans produce antimicrobial substances called bacteriocins which inhibit other bacteria, including members of their own species. Mutacins are a class of antibiotic substances made by Streptococcus mutans. Disclosed is the purification and biochemical characterization of a novel lanthionine-containing mutacin peptide from S. mutans. The purified peptide is pH- and temperature-stable and its amino acid composition indicates the presence of lanthionine and .beta.-methyllanthionine. Also provided are methods of making and using the purified polypeptide.