WO1982001564A1 - Reactif pour l'analyse de l'activite d'une gamma-glutamyle transpeptidase - Google Patents
Reactif pour l'analyse de l'activite d'une gamma-glutamyle transpeptidase Download PDFInfo
- Publication number
- WO1982001564A1 WO1982001564A1 PCT/JP1981/000303 JP8100303W WO8201564A1 WO 1982001564 A1 WO1982001564 A1 WO 1982001564A1 JP 8100303 W JP8100303 W JP 8100303W WO 8201564 A1 WO8201564 A1 WO 8201564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- activity
- reagent
- cyclodextrin
- solution
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/48—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving transferase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
- C12Q1/37—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase involving peptidase or proteinase
Definitions
- the present invention relates to a test sample for measuring the activity of glutamyl transpeptidase. More specifically, the present invention is characterized in that it contains r-glutamyl-4-nitronitronide and cyclodextrin. The present invention relates to a reagent for measuring the activity of r-glutamyl transpeptidase.
- the present inventors have conducted various studies on a method for measuring the enzymatic activity of O-OTP using Glut-4-NA as a substrate, and found that the reaction system had a cyclodextrin. It has been found that the addition of C can significantly increase the solubility of Olu-4-NA and also inhibit the non-excitable degradation of C-lu-4-NA in water or buffer solutions. did. The present invention has been made based on such knowledge. Is
- r-glutamyl-4- 4-trao-lide (substrate) is used as a reagent for measuring the enzymatic activity of r-ciTP, to which cyclodextrin is added.
- This is a feature, and its purpose is to use r-daltamyl- as a substrate.
- Another object of the present invention is to provide a test method capable of remarkably and accurately measuring the activity of daltamyl transdibutidase as compared with the prior art.
- Glu-4-NA used as a substrate has a solubility in water or buffer of up to 4 mM at most, as described above.
- a high solubility of 10 m (4 times higher) can be obtained by adding, for example, six dextrin 0.3 (wv).
- cyclodextrin has the effect of stabilizing C-lu-4-1NA in addition to the above-mentioned increase in solubility of Olu-14-NA. That is, when the aqueous solution or buffer solution (4 mLi) of Glu-4 -'-: ⁇ is left at room temperature, the decomposition amount has already reached about 27 AM in 24 hours and about 5 in 48 hours. It shows a value of about 80 M at 72 hours at 72 hours and about 108 # ⁇ at 90 hours, but this decomposition is due to this decomposition.] 4-nitronitrolin produced is r -After 24 hours, to prevent the catalysis of, already? "-It was found that the enzyme activity of -CT?
- Cost and water solubility are recommended as the preferred modes of use for ⁇ -cyclodextrin.
- An advantage to be noted with respect to the reagent of the present invention is that it can be provided as a lyophilized product. That is, conventionally, the r-GTP enzyme activity assay containing G1U-4-NA as a main component has been described above.3) Since Gin-4-NA is hardly soluble, various solubilization means are used. Finally, it was only possible to obtain a concentration of about 4 m, and it was almost impossible to produce a freeze-dried product as a prototype, but according to the present invention, By using in combination with cyclodextrin], it has become possible to provide freeze-dried products. That is, (r-GTP can be measured by a simple operation using a freeze-dried mixed solution of Jlu-4-NA and cyclodextrin. This will provide significant advantages in making the task of measuring 7 "-GTP significantly easier.
- Buffer solution Glycyl Glycine 6.2 and diethanolamine 10.5 ⁇ are dissolved in about 900% of distilled water, and the pH is adjusted using saline. After adding & 2 (301C), distilled water was added to give 100 ⁇ .
- Substrate solution Dissolve L-7 * -Gnoretamyl-4-nitrofuranilide 4. ⁇ and cyclodextrin 2.7 ⁇ with the above buffer solution.
- Measurement solution 300 ml of the buffer solution of the above H) and the substrates v, The solution is mixed with to obtain a solution.
- the amount of increase in absorbance per minute for 1 minute is defined as X.
- Unit (activity) 1 00 ⁇ ⁇ 2 ⁇ 2 ⁇
- the resulting lyophilized product is dissolved in water or buffer solution (3) to give a 16 mM Glu-4-NA solution.
- the above freeze-dried product is much more stable than the solid state of Glu-4-HA alone]], and this product can be stored in a stable state.
- the reagent for measuring the activity of 7 * -glutamyl transpeptidase of the present invention is r-glutamyl transpeptidase (r
- the reagent for measuring r-GTP activity of the present invention is usefully used for medical diagnosis and also for enzymatic chemistry research, its industrial applicability is extremely large. You.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Biophysics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Reactif pour l'analyse de l'activite d'une gamma-glutamyle transpeptidase, contenant de la cyclodextrine avec un gamma-glutamyle-4-nitroanilide utilise en tant que substrat. La cyclodextrine sert a augmenter la solubilite du substrat et reduit la decomposition non enzymatique de celui-ci.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55150240A JPS5774099A (en) | 1980-10-28 | 1980-10-28 | Reagent for measuring activity of gamma-cultanyl transpeptidase |
JP80/150240801028 | 1980-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1982001564A1 true WO1982001564A1 (fr) | 1982-05-13 |
Family
ID=15492619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1981/000303 WO1982001564A1 (fr) | 1980-10-28 | 1981-10-28 | Reactif pour l'analyse de l'activite d'une gamma-glutamyle transpeptidase |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5774099A (fr) |
DE (1) | DE3152458C2 (fr) |
WO (1) | WO1982001564A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983000876A1 (fr) * | 1981-08-28 | 1983-03-17 | American Hospital Supply Corp | Procede d'augmentation de la sensibilite d'analyses |
US4511651A (en) * | 1982-07-30 | 1985-04-16 | American Monitor Corporation | Reagent composition and assay for the determination of γ-glutamyltransferase activity |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2590983B2 (ja) * | 1987-12-11 | 1997-03-19 | 東ソー株式会社 | 難水溶性抗原の免疫測定方法 |
JPH04365706A (ja) * | 1991-06-13 | 1992-12-17 | Daifuku Co Ltd | シャッター付き回転棚装置の制御方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443791A (en) * | 1977-09-13 | 1979-04-06 | Seishin Seiyaku Kk | Method and reagent for measuring hydrogen peroxide |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125046A (en) * | 1974-11-22 | 1976-11-01 | Ono Pharmaceut Co Ltd | Process for preparing prostaglandin analogues |
JPS6016599A (ja) * | 1983-07-08 | 1985-01-28 | Yatoron:Kk | γ−グルタミルトランスペプチダ−ゼの活性測定用試薬 |
-
1980
- 1980-10-28 JP JP55150240A patent/JPS5774099A/ja active Granted
-
1981
- 1981-10-28 DE DE3152458T patent/DE3152458C2/de not_active Expired - Lifetime
- 1981-10-28 WO PCT/JP1981/000303 patent/WO1982001564A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443791A (en) * | 1977-09-13 | 1979-04-06 | Seishin Seiyaku Kk | Method and reagent for measuring hydrogen peroxide |
Non-Patent Citations (1)
Title |
---|
Gendai Kagaku, No. 96, (1979-3) P.29-31 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983000876A1 (fr) * | 1981-08-28 | 1983-03-17 | American Hospital Supply Corp | Procede d'augmentation de la sensibilite d'analyses |
US4451563A (en) * | 1981-08-28 | 1984-05-29 | Kaufman Richard A | Method for increasing the sensitivity of assays |
US4511651A (en) * | 1982-07-30 | 1985-04-16 | American Monitor Corporation | Reagent composition and assay for the determination of γ-glutamyltransferase activity |
Also Published As
Publication number | Publication date |
---|---|
DE3152458C2 (fr) | 1991-02-14 |
JPS5774099A (en) | 1982-05-10 |
DE3152458T1 (fr) | 1982-12-02 |
JPS6440B2 (fr) | 1989-01-05 |
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