Production of beta-hydroxypalmitate methyl esterase from Ideonella sp.0-0013 (FERM BP-08660)
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United States of America Patent
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Mar 11, 2008
Grant Date -
Aug 31, 2006
app pub date -
Mar 16, 2004
filing date -
Mar 17, 2003
priority date (Note) -
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Abstract
The present invention provides a novel esterase derived from Ideonella sp. 0-0013 strain (FERM BP-08660) having the following properties: (1) function, substrate specificity: hydrolyzes methyl 3-hydroxypalmitate to generate 3-hydroxypalmitic acid and methanol; (2) optimal temperature for functioning: 37.degree. C.; (3) optimal pH and stable pH range: pH 7 or more to pH 10 or less; (4) temperature stability: 97% of the enzyme is stable at 43.degree. C.; (5) inhibition, activation, and stabilization: activated by sodium ion and potassium ion, and inhibited by strontium ion, iron ion (divalent), and methyl palmitate; (6) molecular weight: about 46,500 Da (by SDS-PAGE), about 41,000 Da (by a gel filtration method); and (7) isoelectric point: pI 4 (by polyacrylamide gel isoelectric focusing method); a microorganism producing the enzyme; and a method of producing the enzyme.
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