EC Number | Application | Comment | Organism |
---|---|---|---|
3.5.4.1 | pharmacology | applicability of gene-directed enzyme prodrug therapy (GDEPT), prodrug encapsulation in liposomes, liposomal 5-fluorocytosine (5-FC) achieves high local concentration for suicide therapy | Escherichia coli |
EC Number | Cloned (Comment) | Organism |
---|---|---|
3.5.4.1 | enzyme expression in murine colorectal cancer cell line MC38 | Escherichia coli |
3.5.4.1 | plasmid pBCMGSNeo/CD/CMV containing cytosine deaminase of Escherichia coli used for transfection of MC-38 cells | Escherichia coli |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.5.4.1 | cytosine + H2O | Escherichia coli | - |
uracil + NH3 | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.5.4.1 | Escherichia coli | - |
- |
- |
3.5.4.1 | Escherichia coli | P25524 | - |
- |
EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|---|
3.5.4.1 | additional information | - |
incubation of transfected cells increasing concentrations of free or liposomal 5-fluorocytosine (5-FC) for 72 h, effectivness gene-directed enzyme prodrug therapy (GDEPT) tested in mice transplantated with MC-38 tumor cells, survival times of mice bearing tumors, local concentration and toxicity of liposomal prodrug in different organs, enhancement of antitumor effects by liposomal form of 5-fluorocytosine (5-FC) | Escherichia coli |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.5.4.1 | 5-fluorocytosine + H2O | activation of the prodrug to the cytotoxic drug in cancer therapy by recombinant enzyme, the cytosine deaminase gene acts as suicide gene leading to increased 5-fluorouracil-mediated murine colorectal cancer cell killing, liposomal formulation of substrate 5-fluorocytosine using dipalmitoylphopshatidylcholine and cholesterol in a 1:1 ratio, overview | Escherichia coli | 5-fluorouracil + NH3 | - |
? | |
3.5.4.1 | 5-fluorocytosine + H2O | gene-directed enzyme prodrug therapy (GDEPT) with free and liposomal 5-fluorocytosine (5-FC), antitumor effects of liposomal 5-fluorocytosine (5-FC) increased if compared to free prodrug | Escherichia coli | 5-fluorouracil + NH3 | - |
? | |
3.5.4.1 | cytosine + H2O | - |
Escherichia coli | uracil + NH3 | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
3.5.4.1 | CD | - |
Escherichia coli |