Natural promoters for gene expression in C1 metabolizing bacteria
First Claim
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1. A promoter region highly expressed in the presence of methane or methanol having the nucleic acid sequence as set forth in SEQ ID NO:
- 18.
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Abstract
Genes have been identified in the Methylomonas genome that are responsive to various metabolic and growth conditions. The identified responsiveness of these genes allows for the use of their promoters in regulated gene expression in C1 metabolizing bacteria. In particular, the hps promoter, which in its native state drives the expression of 3-hexulose-6-phosphate synthase (HPS), was found to be useful for directing expression of heterolgous coding regions (e.g., crtZ) in the obligate methanotroph Methylomonas sp. 16a.
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5 Claims
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1. A promoter region highly expressed in the presence of methane or methanol having the nucleic acid sequence as set forth in SEQ ID NO:
- 18.
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2. A method for the expression of a coding region of interest in a C1 metabolizing bacteria comprising:
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a) providing a transformed C1 metabolizing bacterial cell having a chimeric gene comprising; 1) a promoter region having the nucleic acid sequence as set forth in SEQ ID NO;
18; and2) a coding region of interest expressible in a C1 metabolizing bacteria, wherein the promoter region is operably linked to a coding region of interest; and b) growing the transformed C1 metabolizing bacteria cell of step (a) in the presence of a C1 carbon source selected from the group consisting of methane and methanol wherein the chimeric gene of step (a) is expressed. - View Dependent Claims (3, 4, 5)
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