In physical structures, (CA 2 tracts exhibit shifted base pairing, in which bases are not paired with their Watson Crick complements but with their direct 5′ neighbors on the opposite strand (Timsit et al. 1991).
While we do not have a good experimental number for the affinity of such a nonspecific interaction between Ni2+-bound NikR and DNA, because it is below the detection level of the standard gel shift assay (4, 8), an estimate for the nonspecific DNA affinity can be obtained from base substitution experiments in which bases in the nik operon binding motif are individually substituted.
The simulated population was a closed nucleus with discrete generations in which base population animals were assumed unrelated.
Euroclear, based in Brussels, will control the combined group, in which Crest, based in London, will have a 19percentt stake.
That is a market in which PeopleSoft, based in Pleasanton, Calif., has no presence.
Stock in IMS, which is based in Fairfield, Conn., fell 3percentt, and stock in VNU, which is based in Haarlem, the Netherlands, rose more than 4percentt.
Cisco bought its initial 40percentt stake in Allegro, which is based in Milpitas, Calif., in December.
Stock in Parmalat, which is based in Milan, fell 7percentt.
Stock in Nokia, which is based in Espoo, Finland, fell 11percentt.
Shares in Tata, which is based in Mumbai, fell 8percentt.
Shares in Maytag, which is based in Newton, Iowa, fell $6.54, to $32.32.
