Enzyme mechanisms articles within Nature

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  • News & Views |

    Every machine is made of parts. But, as the new structure of the HIV integrase enzyme in complex with viral DNA shows, one could not have predicted from the individual parts just how this machine works.

    • Robert Craigie

  • Letter |

    Rho is a general transcription termination factor in bacteria, but the mechanism by which it disrupts the RNA polymerase (RNAP) elongation complex is unknown. Here, Rho is shown to bind tightly to the RNAP throughout the transcription cycle, with the formation of the RNAP–Rho complex being crucial for termination. Furthermore, RNAP is proposed to have an active role in Rho termination through an allosteric mechanism.

    • Vitaly Epshtein
    • , Dipak Dutta
    •  & Evgeny Nudler

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