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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

Sinônimo(s):

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

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About This Item

Número CAS:
Número da licença da enzima:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54

recombinante

expressed in E. coli

Nível de qualidade

forma

buffered aqueous solution

concentração

≥500 units/mL

técnica(s)

inhibition assay: suitable

cor

colorless to yellow

solubilidade

soluble
water: soluble

nº de adesão NCBI

nº de adesão UniProt

aplicação(ões)

diagnostic assay manufacturing

Condições de expedição

wet ice

temperatura de armazenamento

2-8°C

Informações sobre genes

Escherichia coli ... deoA(948901)

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Descrição geral

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.

Aplicação

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.

Ações bioquímicas/fisiológicas

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.

Definição da unidade

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.

Nota de preparo

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

Código de classe de armazenamento

12 - Non Combustible Liquids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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The dual role of thymidine phosphorylase in cancer development and chemotherapy
Bronckaers A, et al.
Medicinal Research Reviews, 29(6), 903-953 (2009)
Thymidine kinase 1 and thymidine phosphorylase expression in non-small-cell lung carcinoma in relation to angiogenesis and proliferation
Brockenbrough J S, et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 57(11), 1087-1097 (2009)
Structures of native human thymidine phosphorylase and in complex with 5-iodouracil
Mitsiki E, et al.
Biochemical and Biophysical Research Communications, 386(4), 666-670 (2009)
Jen-Chung Ko et al.
Biochemical pharmacology, 88(1), 119-127 (2014-01-23)
Tamoxifen is a triphenylethylene nonsteroidal estrogen receptor (ER) antagonist used worldwide as an adjuvant hormone therapeutic agent in the treatment of breast cancer. However, the molecular mechanism of tamoxifen-induced cytotoxicity in non-small cell lung cancer (NSCLC) cells has not been
Hriday Bera et al.
European journal of medicinal chemistry, 67, 325-334 (2013-07-23)
Thirty-three 1,2,4-triazolo[1,5-a][1,3,5]triazin-5,7-dione and its 5-thioxo analogues were designed and synthesized which contained different substituents at meta- and/or para-positions of 2-phenyl or 2-benzyl ring attached to the fused ring structure. The preliminary pharmacological evaluation demonstrated that the 5-thioxo analogues of 1,2,4-triazolo[1,5-a][1,3,5]triazine

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