Transport of positive charge or holes in DNA occurs via a thermally activated multi-step hopping mechanism. The fastest hopping rates reported to date are those for repeating poly(purine) sequences in which hopping occurs via a random walk mechanism with rate constants of k(hop) = 4.3 x 10(9) s(-1) for poly(dG) and 1.2 x 10(9) s(-1) for poly(dA). We report here the dynamics of charge separation in DNA conjugates possessing repeating 7-deazaadenine (dzA) sequences. These data provide an estimated value of k(hop) = 4.2 x 10(10) s(-1) for poly(dzA), an order of magnitude faster than for poly(dG).