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Merck
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Key Documents

SRE0006

Sigma-Aldrich

Thymidine Phosphorylase, recombinant from Escherichia coli

recombinant, expressed in E. coli, Suitable for manufacturing of diagnostic kits and reagents, buffered aqueous solution, ≥500 units/mL

동의어(들):

Gliostatins, PD-ECGF, Thymidine:orthophosphate deoxy-D-ribosyltransferase

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About This Item

CAS Number:
효소 위원회 번호:
MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.54

재조합

expressed in E. coli

Quality Level

형태

buffered aqueous solution

농도

≥500 units/mL

기술

inhibition assay: suitable

색상

colorless to yellow

solubility

soluble
water: soluble

NCBI 수납 번호

UniProt 수납 번호

응용 분야

diagnostic assay manufacturing

배송 상태

wet ice

저장 온도

2-8°C

유전자 정보

Escherichia coli ... deoA(948901)

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일반 설명

Research area: CELL SIGNALING

The E. coli thymidine phosphorylase shares 40% sequence homology with the human sequence, which is identical to the angiogenic agent platelet-derived endothelial growth factor. The purified E. coli enzyme has been shown to stimulate blood vessel growth in chick chorioallantoic membrane assays.

애플리케이션

Thymidine phosphorylase has been used:
  • in a study to evaluate biomarkers for advanced breast cancer patients treated with capecitabine-based first-line chemotherapy.
  • in a study to investigate implications for the clinical efficacy of nucleoside analogues.

생화학적/생리학적 작용

An enzyme that catalyzes the reversible conversion of thymidine to thymine. Thymidine phosphorylase is part of the pyrimidine nucleoside salvage pathway. This pathway allows pyrimidine bases to be recycled for nucleotide biosynthesis, while the pentose 1-phosphates are converted to intermediates of the pentose phosphate shunt and glycolysis. The E. coli thymidine phosphorylase shares 40% sequence homology with the human sequence, which has been found to be identical to the angiogenic agent platelet-derived endothelial growth factor. The purified E. coli enzyme has been shown to stimulate blood vessel growth in chick chorioallantoic membrane assays.
Thymidine phosphorylase catalyzes the reversible conversion of thymidine to thymine. Thymidine phosphorylase is part of the thymidine salvage pathway and pyrimidine nucleoside salvage pathway. This pathway allows pyrimidine bases to be recycled for nucleotide biosynthesis, while the pentose 1-phosphates are converted to intermediates of the pentose phosphate shunt and glycolysis. The enzyme inhibits apoptosis and induces angiogenesis thereby promoting tumor growth and metastatic process. Moreover, thymidine phosphorylase inhibits vascular smooth muscle cell proliferation.

단위 정의

One unit will convert 1.0 μmole each of thymidine and phosphate to thymine and 2-deoxyribose 1-phosphate per min at pH 7.4 at 25°C.

제조 메모

Cloned from E. coli and produced in overexpressing E. coli

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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문서 라이브러리 방문

Clinical and biochemical improvements in a patient with MNGIE following enzyme replacement.
Bridget E Bax et al.
Neurology, 81(14), 1269-1271 (2013-08-24)
Akihiko Hatano et al.
Organic & biomolecular chemistry, 11(40), 6900-6905 (2013-09-24)
Herein, we describe β-selective coupling between a modified uracil and a deoxyribose to produce functionalized nucleosides catalyzed by thymidine phosphorylase derived from Escherichia coli. This enzyme mediates nucleobase-exchange reactions to convert unnatural nucleosides possessing a large functional group such as
Thymidine phosphorylase regulates the expression of CXCL10 in rheumatoid arthritis fibroblast-like synoviocytes.
Toyoda Y, Tabata S, Kishi J, et al.
Arthritis & Rheumatology (Hoboken, N.J.), 66(3), 560-568 (2014)
Sheng-hua Zhang et al.
Cancer chemotherapy and pharmacology, 72(4), 777-788 (2013-08-27)
Capecitabine (CAP), a prodrug, needs to be converted to 5-fluorouracil by several key enzymes, including thymidine phosphorylase (TP). To improve the therapeutic index, potentiation of antitumor activity of CAP is required. In this study, we explored whether lidamycin (LDM), an
Hriday Bera et al.
Chemical biology & drug design, 82(3), 351-360 (2013-06-14)
In our lead finding program, a series of 1,2,4-triazolo[1,5-a][1,3,5]triazine derivatives were synthesized, and their in vitro thymidine phosphorylase inhibitory potential was explored. Among the different derivatives, compounds having keto group (C = O) at C7 and thioketo group (C = S) at C5 positions

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