发明名称 |
Targeted Gene Deletions for Polysaccharide Slime Formers |
摘要 |
The present invention provides improved polysaccharides (e.g., gellan and diutan) produced by mutant gene R, M or N Sphingomonas strains containing at least one genetic modification that favors slime-forming polysaccaride production. Methods of making the mutant Sphingomonas strains and the culture broth containing such mutant Sphingomonas strains are also provided. |
申请公布号 |
US2014342436(A1) |
申请公布日期 |
2014.11.20 |
申请号 |
US201414256117 |
申请日期 |
2014.04.18 |
申请人 |
CP KELCO U.S., INC. |
发明人 |
Harding Nancy E.;Patel Yamini N.;Coleman Russell J. |
分类号 |
C12N15/74 |
主分类号 |
C12N15/74 |
代理机构 |
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代理人 |
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主权项 |
1. A Sphingomonas mutant strain comprising a mutation in dpsR gene, wherein said Sphingomonas mutant strain is a variant of wild-type Sphingomonas strain ATCC 53159, and wherein said mutant strain has been genetically engineered to eliminate expression of the dpsR gene. |
地址 |
Atlanta GA US |