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39488

Sigma-Aldrich

Pyrimidine nucleoside phosphorylase

recombinant, expressed in E. coli, ≥1300 U/mL

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About This Item

CAS號碼:
酶委員會編號:
分類程式碼代碼:
12352204
NACRES:
NA.54

重組細胞

expressed in E. coli

品質等級

形狀

liquid

比活性

≥1300 U/mL

相關疾病

cancer

儲存溫度

−20°C

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應用

Pyrimidine nucleoside phosphorylase (PyNPase) may be used as a marker to predict the malignant potential of breast cancer, especially lymph node metastasis. PyNPase is used to study breast cancer, specifically its role in angiogenesis.

生化/生理作用

Pyrimidine nucleoside phosphorylase (PyNPase) is a glycosyltransferase that catalyzes the conversion of pyrimidine nucleoside and phosphate to a pyrimidine base and α-D-ribose 1-phosphate. PyNPase plays a significant role in breast cancer angiogenesis.

單位定義

One unit will convert 1 μmole each of thymidine and phosphate to thymine and 2-deoxyribose 1-phosphate per minute at pH 7.4 and 25°C

象形圖

Health hazard

訊號詞

Danger

危險聲明

防範說明

危險分類

Resp. Sens. 1

儲存類別代碼

12 - Non Combustible Liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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K Mimori et al.
Annals of oncology : official journal of the European Society for Medical Oncology, 10(1), 111-113 (1999-03-17)
The clinical significance of pyrimidine nucleoside phosphorylase (PyNPase) activity in breast carcinomas has never been determined. In 41 cases of breast carcinoma, the enzyme activity of PyNPase was determined by the high performance liquid chromatography (HPLC) assay and its value
K Okuyama et al.
Bioscience, biotechnology, and biochemistry, 60(10), 1655-1659 (1996-10-01)
The pyrimidine nucleoside phosphorylase (Py-NPase) of Bacillus stearothermophilus TH 6-2 is a dimer of 46-kDa subunits and catalyzes the reversible phosphorolysis of uridine and thymidine. The gene encoding this pyrimidine nucleoside phosphorylase (pyn gene) has been cloned and sequenced from
T Hamamoto et al.
Bioscience, biotechnology, and biochemistry, 60(7), 1179-1180 (1996-07-01)
The purine nucleoside phosphorylase (Pu-NPase) and the pyrimidine nucleoside phosphorylase (Py-NPase) have been purified from Bacillus stearothermophilus TH 6-2. The Pu-NPase is a trimer of 30-kDa subunits and the Py-NPase is a dimer of 46-kDa subunits. The isoelectric points of
M J Pugmire et al.
Structure (London, England : 1993), 6(11), 1467-1479 (1998-11-18)
Pyrimidine nucleoside phosphorylase (PYNP) catalyzes the reversible phosphorolysis of pyrimidines in the nucleotide synthesis salvage pathway. In lower organisms (e.g. Bacillus stearothermophilus) PYNP accepts both thymidine and uridine, whereas in mammalian and other higher organisms it is specific for thymidine
Purification and comparative properties of a pyrimidine nucleoside phosphorylase from Bacillus stearothermophilus.
P P Saunders et al.
The Journal of biological chemistry, 244(13), 3691-3697 (1969-07-10)

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