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Title:
STABLE ISOTOPE-LABELED AMINO ACID, METHOD OF INTEGRATING THE SAME INTO TARGET PROTEIN, METHOD OF NMR STRUCTURAL ANALYSIS OF PROTEIN AND PROCESS FOR PRODUCING SITE-SELECTIVE STABLE ISOTOPE-LABELED FUMARIC ACID AND TARTARIC ACID
Document Type and Number:
WIPO Patent Application WO/2003/053910
Kind Code:
A1
Abstract:
It is intended to provide a stable isotope-labeled amino acid which is at least one of amino acids constituting protein, characterized by having at least one of the following labeling patterns: (a) in one or more methylene groups, methylene hydrogen atoms other than at least one have been deuterated; (b) in prochiral gem-methyl groups, hydrogen atoms in one of the methyl groups have been completely deuterated; (c) in prochiral gem-methyl groups, hydrogen atoms in the methyl groups have been partially deuterated; and (d) hydrogen atoms in a methyl group other than one have been deuterated while hydrogen atoms in an aromatic ring have been partially deuterated. Using this stable isotope-labeled amino acid, deuterium substitution of a protein can be achieved without worsening the NMR sensitivity of the residual hydrogen nucleus. Thus, an NMR spectrum of a high-molecular weight protein exceeding the upper limit applicable in the prior art can be quickly and surely analyzed and the stereostructure can be highly precisely determined at the same time.

Inventors:
KAINOSHO MASATSUNE (JP)
TERAUCHI TSUTOMU (JP)
Application Number:
PCT/JP2002/013303
Publication Date:
July 03, 2003
Filing Date:
December 19, 2002
Export Citation:
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Assignee:
JAPAN SCIENCE & TECH CORP (JP)
KAINOSHO MASATSUNE (JP)
TERAUCHI TSUTOMU (JP)
International Classes:
C07B59/00; C07C51/09; C07C229/08; C07C229/22; C07C229/24; C07C229/26; C07C229/36; C07C323/58; G01N24/08; (IPC1-7): C07C229/08; C07C229/24; C07C229/26; C07C229/36; C07C323/58; C07B59/00; C12P21/00; G01N24/08
Foreign References:
JPH02208579A1990-08-20
JPH05236986A1993-09-17
EP0299425A11989-01-18
Other References:
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Attorney, Agent or Firm:
Kumakura, Yoshio (Shin-Tokyo Bldg. 3-1, Marunouchi 3-Chom, Chiyoda-Ku Tokyo, JP)
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