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.

Date of Patent:
Jun. 12, 2018

Filed:

Apr. 12, 2016
Applicant:

Wuhan Phagelux Bio-tech Company Limited, Wuhan, CN;

Inventors:

Hongping Wei, Wuhan, CN;

Hang Yang, Wuhan, CN;

Jing Wang, Wuhan, CN;

Junping Yu, Wuhan, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 9/88 (2006.01); A23C 9/12 (2006.01); A61K 38/51 (2006.01); A61P 31/04 (2006.01); A61P 1/02 (2006.01); C12N 15/10 (2006.01); C12N 15/70 (2006.01);
U.S. Cl.
CPC ...
A61K 38/51 (2013.01); A61P 31/04 (2018.01); C12N 9/88 (2013.01); C12N 15/101 (2013.01); C12N 15/70 (2013.01);
Abstract

This invention discloses a lysin that can kill many species of Streptococci. A new lysin, ClyR, was constructed by the gene splicing method. The ClyR can effectively kill different species of Streptococci, including, and various Enterococci and. ClyR shows good stability and is not sensitive to EDTA and high concentration of NaCl. Moreover, the ClyR is active in a wide range of pH and maintains high activity in pH 5-11. Recombinant protein ClyR is well expressed instain BL21 (DE3). High doses of ClyR showed no apparent toxicity in mice. Furthermore, administration of 0.8 mg per mouse once is able to completely protect the mouse infected with lethal doses of Group B Streptococci. The ClyR can be used alone or in combination with different forms of reagents and solutions, for the control of a variety of Streptococci and for the treatment of infections caused by these bacteria. It has a broad application prospect.


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