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Thymidine Phosphorylase from Escherichia coli, Recombinant

Cat No.
NATE-0703
Description
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.
Abbr
Thymidine Phosphorylase, Recombinant (Escherichia coli)
Source
E. coli
Species
Escherichia coli
Applications
Thymidine phosphorylase has been used in a study to evaluate biomarkers for advanced breast cancer patients treated with capecitabine-based first-line chemotherapy. Thymidine phosphorylase has also been used in a study to investigate implications for the clinical efficacy of nucleoside analogues.
Form
buffered aqueous solution, Solution in 0.5 M potassium phosphate containing 2 mM uracil, 0.02% sodium azide and bovine serum albumin.
Enzyme Commission Number
EC 2.4.2.4
Activity
Type I, > 900 units/mL, aseptically filled; Type II, > 500 units/mL.
CAS No.
9030-23-3
Concentration
> 900 units/mL
Unit Definition
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.
Storage
2-8°C
Warnings
Cloned from E. coli and produced in overexpressing E. coli
Synonyms
thymidine phosphorylase; pyrimidine phosphorylase; thymidine-orthophosphate deoxyribosyltransferase; animal growth regulators, blood platelet-derived endothelial cell growth factors; blood platelet-derived endothelial cell growth factor; deoxythymidine phosphorylase; gliostatins; pyrimidine deoxynucleoside phosphorylase; thymidine:phosphate deoxy-D-ribosyltransferase; EC 2.4.2.4; 9030-23-3
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