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We have determined that ARS121 is an efficient origin of replication on chromosome X of Saccharomyces cerevisiae. This origin is comprised of at least three distinct functional domains. One of these domains is the ARS121 core sequence (approximately 35 bp-long), which is essential for origin activity. This essential core contains an 11 bp sequence(More)
UL9, the origin-binding protein of herpes simplex virus type 1, contains six sequence motifs conserved in a large superfamily of RNA and DNA helicases. Single-amino-acid substitution mutations in these motifs inactivate UL9 function in vivo (R. Martinez, L. Shao, and S. K. Weller, J. Virol. 66:6735-6746, 1992). Overexpression of wild-type UL9 is inhibitory(More)
In this paper, we find the exact solutions of some nonlinear evolution equations by using (G ′ G)-expansion method. Four nonlinear models of physical significance i.e. the symmetric regularized long-wave equation, the Klein-Gordon-Zakharov equations, the Burgers-Kadomtsev-Petviashvili equation and the nonlinear Schrödinger equation with a cubic nonlinearity(More)
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