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Title:
PROCESS FOR PRODUCTION OF N-ACETYL-D-NEURAMINIC ACID
Document Type and Number:
WIPO Patent Application WO/2011/086834
Kind Code:
A1
Abstract:
Disclosed are: NANA aldolase which is stable under alkaline conditions having high pH values; and a process for producing NANA in a large amount with high efficiency using the NANA aldolase. Specifically disclosed are: a protein which exhibits pH stability at pH 8.0 to 11.0 and has an N-acetyl-D-neuraminic acid aldolase activity; a polynucleotide encoding the protein; an expression vector carrying the polynucleotide; a transformant having the expression vector introduced thereinto; a bacterium capable of producing the protein; a process for producing N-acetyl-D-neuraminic acid aldolase using the protein; and others.

Inventors:
YOKOZEKI KENZO (JP)
HAGISHITA TAIRO (JP)
SHIMIZU SAKAYU (JP)
Application Number:
PCT/JP2010/073379
Publication Date:
July 21, 2011
Filing Date:
December 24, 2010
Export Citation:
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Assignee:
AJINOMOTO KK (JP)
YOKOZEKI KENZO (JP)
HAGISHITA TAIRO (JP)
SHIMIZU SAKAYU (JP)
International Classes:
C12N15/09; C12N1/15; C12N1/19; C12N1/21; C12N5/10; C12N9/88; C12P19/26
Domestic Patent References:
WO1994029476A11994-12-22
Foreign References:
JPS61219384A1986-09-29
JPH05211884A1993-08-24
Other References:
TRAVING C. ET AL.: "Cloning, sequencing and expression of the acylneuraminate lyase gene from Clostridium perfringens A99", GLYCOCONJ. J., vol. 14, no. 7, 1997, pages 821 - 830
BLAYER S. ET AL.: "Alkaline biocatalysis for the direct synthesis of N-acetyl-D-neuraminic acid (Neu5Ac) from N-acetyl-D-glucosamine (GlcNAc)", BIOTECHNOL. BIOENG., vol. 66, no. 2, 1999, pages 131 - 136
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
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