CA2365418A1 - Phosphatases with improved phytase activity - Google Patents

Phosphatases with improved phytase activity Download PDF

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Publication number
CA2365418A1
CA2365418A1 CA002365418A CA2365418A CA2365418A1 CA 2365418 A1 CA2365418 A1 CA 2365418A1 CA 002365418 A CA002365418 A CA 002365418A CA 2365418 A CA2365418 A CA 2365418A CA 2365418 A1 CA2365418 A1 CA 2365418A1
Authority
CA
Canada
Prior art keywords
phytase activity
phosphatase
phosphatases
improved
improved phytase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002365418A
Other languages
French (fr)
Other versions
CA2365418C (en
Inventor
Xingen Lei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cornell Research Foundation Inc
Original Assignee
Cornell Research Foundation, Inc.
Xingen Lei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cornell Research Foundation, Inc., Xingen Lei filed Critical Cornell Research Foundation, Inc.
Publication of CA2365418A1 publication Critical patent/CA2365418A1/en
Application granted granted Critical
Publication of CA2365418C publication Critical patent/CA2365418C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/14Hydrolases (3)
    • C12N9/16Hydrolases (3) acting on ester bonds (3.1)
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K10/00Animal feeding-stuffs
    • A23K10/10Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/14Pretreatment of feeding-stuffs with enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/189Enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K50/00Feeding-stuffs specially adapted for particular animals
    • A23K50/30Feeding-stuffs specially adapted for particular animals for swines

Abstract

The present invention provides phosphatases with improved phytase activity.
The invention provides proteolytic fragments of phosphatase having improved phytase activity. A recombinant gene encoding a phosphatase fragment having improved phytase activity is also provided. The invention also includes a method of increasing the phytase activity of phosphatase by treating the phosphatase with a protease. In addition, the invention provides a phosphatase, AppA2, having improved properties.
CA002365418A 1999-03-31 2000-03-31 Phosphatases with improved phytase activity Expired - Lifetime CA2365418C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12703299P 1999-03-31 1999-03-31
US60/127,032 1999-03-31
PCT/US2000/008590 WO2000058481A2 (en) 1999-03-31 2000-03-31 Phosphatases with improved phytase activity

Publications (2)

Publication Number Publication Date
CA2365418A1 true CA2365418A1 (en) 2000-10-05
CA2365418C CA2365418C (en) 2009-05-26

Family

ID=22427982

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002365418A Expired - Lifetime CA2365418C (en) 1999-03-31 2000-03-31 Phosphatases with improved phytase activity

Country Status (12)

Country Link
US (2) US6511699B1 (en)
EP (1) EP1165806B1 (en)
CN (1) CN100347303C (en)
AT (1) ATE301198T1 (en)
AU (1) AU4056700A (en)
BR (1) BR0009516B1 (en)
CA (1) CA2365418C (en)
DE (1) DE60021715T2 (en)
DK (1) DK1165806T3 (en)
ES (1) ES2248067T3 (en)
MX (1) MXPA01009809A (en)
WO (1) WO2000058481A2 (en)

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Also Published As

Publication number Publication date
EP1165806A2 (en) 2002-01-02
EP1165806B1 (en) 2005-08-03
CN1413253A (en) 2003-04-23
AU4056700A (en) 2000-10-16
BR0009516A (en) 2001-12-26
MXPA01009809A (en) 2002-07-30
WO2000058481A3 (en) 2001-01-04
WO2000058481A9 (en) 2002-08-29
WO2000058481A2 (en) 2000-10-05
ES2248067T3 (en) 2006-03-16
DE60021715D1 (en) 2005-09-08
BR0009516B1 (en) 2013-09-10
CN100347303C (en) 2007-11-07
US6511699B1 (en) 2003-01-28
ATE301198T1 (en) 2005-08-15
CA2365418C (en) 2009-05-26
DE60021715T2 (en) 2006-06-01
DK1165806T3 (en) 2005-12-05
US20030072844A1 (en) 2003-04-17
US6974690B2 (en) 2005-12-13

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