T2807
Thymidine Phosphorylase, recombinant from Escherichia coli
recombinant, expressed in E. coli, buffered aqueous solution, ≥500 units/mL
Synonym(s):
Thymidine:orthophosphate deoxy-D-ribosyltransferase
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About This Item
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recombinant
expressed in E. coli
Quality Level
form
buffered aqueous solution
concentration
≥500 units/mL
UniProt accession no.
storage temp.
2-8°C
Gene Information
Escherichia coli K12 ... deoA(948901)
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General description
Thymidine phosphorylase inhibits vascular smooth muscle cell proliferation.
Application
Thymidine phosphorylase has been used in a study to assess TAS-102 treatment in patients with advanced solid tumors. Thymidine phosphorylase has also been used in a study to investigate antitumor effects of the FP3 protein on patient-derived tumor tissue xenograft models of primary colon carcinoma.
Biochem/physiol Actions
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.
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.
Physical form
Solution in 0.5 M potassium phosphate containing 2 mM uracil, 0.02% sodium azide and bovine serum albumin
Preparation Note
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
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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