Article
Mechanochemistry of transcription termination factor Rho.
Molecular cell - 9 Jun 2006
Adelman Joshua L, Jeong Yong-Joo, Liao Jung-Chi, Patel Gayatri, Kim Dong-Eun, Oster George, Patel Smita S
Abstract excerpt
Rho is a ring-shaped hexameric motor protein that translocates along nascent mRNA transcript and terminates transcription of select genes in bacteria. Using a numerical optimization algorithm that simultaneously fits all of the presteady-state ATPase kinetic data, we determine how Rho utilizes the chemical energy of ATP hydrolysis to translocate RNA. A random hydrolysis mechanism is ruled out by the observed...
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