Ranunculus circinatus Sibth. is a boreal, Eurasian species. The content of heavy metals and the composition fatty acids in R. circinatum from Delta Selenga River, which main tributary Lake Baikal, was studied for first time this paper. Plants river delta accumulated significant quantities, mostly Fe Mn, Pb Cd below detection limit. Palmitic C16:0, myristic C14:0 stearic C18:0 were saturated aci...

The exocyclic DNA base adduct 1,N6-ethenoadenine (epsilonA) is directly repaired by the AlkB proteins in vitro.

The logarithm of the maximum number of transversals over all latin squares of order n is greater than n6 (lnn + O(1)).

The synthesis of four novel platinum complexes, bearing N6-(6-amino-hexyl)adenosine or a 1,6-di(adenosin-N6-yl)-hexane respectively, as ligands of mono-functional cisplatin or monochloro(ethylendiamine)platinum(II), is reported. The chemistry exploits the high affinity of the charged platinum centres towards the N7 position of the adenosine base system and a primary amine of an alkyl chain inst...

We previously reported that a variety of human cells and tissues contained a Mr35,000 DNA-binding protein which selectively recognized a single 1,N6-ethenoadenine in a defined 25-base double-stranded oligonucleotide (B. Rydberg et al., Proc. Natl. Acad. Sci. USA, 88: 6839-6842, 1991). We now demonstrate that incubation of the same duplex with 50-fold partially purified binding protein from huma...

p-Nitrocalix[6]arene (CALX-N6, L) formed a 1:1 metal complex, ML, with light rare earth metal ions (M3+), such as La3+, Pr3+ and Nd3+ except Ce3+, but formed a 1:2 (M(3+):L) complex, ML2 (the charge of the complex is omitted) with heavy rare earth metal ions, such as Sm(3+)-Lu3+ including Y3+. The conditional stability constants of these 1:1 and 1:2 complexes, KML and KML2, were measured by a l...