Of the DNA bases, peroxynitrite (ONOO-) is most reactive toward 2'-deoxyguanosine (dGuo), but even more reactive with 8-oxo-7, 8-dihydro-2'-deoxyguanosine (8-oxodGuo), requiring a 1,000-fold excess of dGuo to provide 50% protection against the reaction with 8-oxodGuo. Therefore, it seems reasonable that 8-oxodGuo is a potentially important target in DNA and that the structures of the reaction p...

An enzymatic procedure for the synthesis of adenosine 5'-O-(3-thiotriphosphate) (ATP-r-S) on a 5O-mmol scale from dihydroxyacetone, sodium thiophosphate, ADP, and phosphoenol pyruvate is described. The synthesis uses polyacrylamide gel immobilized glycerokinase coupled to a pymvate kinase catalyzed ATP cofactor regeneration system, and polyacrylamide gel immobilized triosephosphate isomerase, g...

01.2 SUPERINTENDENCIA NACIONAL 1 SUPERINTENDENTE NACIONAL 05702011 FP 1 1 O O 2 " 3 ASESOR IV 05702012 EC 2 2 O 2 4 " 4 ASESOR 111 05702012 EC 1 1 O 1 5 ,1 6 ASESOR rr 05702012 EC 2 1 1 2 7 " 8 ASESOR I 05702012 EC 2 1 1 2 9 ,1 11 SECRETARIA EJECUTIVA 11 05702016 SP-AP 3 3 O O 12 " 13 T CN1CO 11 05702016 SP-AP 2 2 O O 14 al 18 AUXILIAR 05702016 SP-AP 5 5 O O TOTAL SUPERINTENDENCIA NACIONAL 18 1...

In the title compound, [Ce(C(9)H(4)N(2)O(4))(C(2)H(3)O(2))(H(2)O)](n), the Ce(III) ion is coordinated by five O atoms and one N atom from four 1H-benzimidazole-5,6-dicarboxyl-ato (L) ligands and by two O atoms from an acetate ligand and one aqua ligand, forming a slightly distorted tricapped trigonal-prismatic geometry. The L ligands are bridging, forming a layered polymer parallel to (010). In...

In the title complex, [Pr(C(9)H(4)N(2)O(4))(C(2)H(3)O(2))(H(2)O)](n), the Pr(III) ion is coordinated by five O atoms and one N atom from four benzimidazole-5,6-dicarboxyl-ate ligands, two O atoms from an acetate ligand and one water mol-ecule, giving a tricapped trigonal-prismatic geometry. The benzimidazole-5,6-dicarboxyl-ate and acetate ligands connect the Pr(III) ions, forming a layer in the...

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Acetone extract of aerial parts of Euphorbia marschalliana collected from Iran has been subjected to different chromatography techniques for fractionation and purification. The stereo-structures of the myrsinol esters 15-O-acetyl-3-O-propionyl-5-O-butanoyl-7-O-nicotinoylmyrsinol (1) and 15-O-acetyl-3,5-O-dibutanoyl-7-O-nicotinoylmyrsinol (2) have been probed using ROESY spectroscopy and modifie...