1233946-39-8Relevant articles and documents
DNA binding and cleavage studies of copper(II) complexes with 2′-deoxyadenosine modified histidine moiety
Borowska, Justyna,Sierant, Malgorzata,Sochacka, Elzbieta,Sanna, Daniele,Lodyga-Chruscinska, Elzbieta
, p. 989 - 1004 (2015)
This work is focused on the study of DNA binding and cleavage properties of 2′-deoxyadenosines modified with ester/amide of histidine (his6dA ester, his6dA amide) and their copper(II) complexes. To determine the coordination mode of
RNA-cleaving 10-23 deoxyribozyme with a single amino acid-like functionality operates without metal ion cofactors
Smuga, Damian,Majchrzak, Kinga,Sochacka, Elzbieta,Nawrot, Barbara
, p. 934 - 948 (2010/08/05)
A series of 10-23 deoxyribozymes (D2-D9) containing single amino-acid-bearing nucleosides (thr6dA, hisam6dA, hisam5dU and ncmnm5dU) at positions 4, 5, 8 or 15 of the catalytic core was obtained by chemical synthesis. The deoxyribozymes were screened for their catalytic efficiency, and in the presence of 1 mM Mg 2+ two of them, containing at position 8 either hisam5dU (D8) or ncmnm5dU (D9), were found to be RNA nucleases several times more active than their non-modified precursor. Moreover, in the magnesium-free TRIS or PIPES buffers, these enzymes were able to catalyze the cleavage of the phosphodiester bond located between the 5'-GpU-3' sequence of the complementary RNA substrate. The cleavage reaction proceeded with the highest efficiency at pH > 7.