Broad-spectrum, high-temperatur-resistant, high-specific-activity phytase, and its coding gene and expression

A technology of phytase and acid enzyme, which is applied in the direction of plant genetic improvement, genetic engineering, botany equipment and methods, etc., can solve the problems of waste of phosphorus sources, increase of feed cost, pollution of the environment, etc.
CN1405303AInactive Publication Date: 2003-03-26FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
Publication Date
2003-03-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a kind of broad-spectrum embedded acid enzyme and its coding gene. The invention also provides the expressing carrier and the recomposing yeast cell which contains the carrier. In the invention, the expressing quantity of embedded acid enzyme in recomposing yeast reaches to 520000U / ml ferment liquor.
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Description

technical field

[0001] The invention relates to a phytase and its coding gene. The invention also relates to an expression vector containing the modified phytase and a recombinant yeast cell containing the expression vector. Background technique

[0002] Phosphorus is an essential mineral that all animals need for growth. Phosphorus accounts for more than a quarter of the total minerals in an animal's body, and 80% of it exists in the bones in the form of hydroxyapatite. Bones serve not only as the skeleton of the body, but also as a storehouse of calcium, phosphorus, and other minerals that can be mobilized to other tissues when needed. The other 20% of phosphorus exists in muscle, blood and other cartilage tissues. They are the constituents of many organic compounds and participate in almost every physiological and biochemical reaction required by life in the body. Because phosphorus has such important biological functions, it is very important to provide adequate phosp...

Claims

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