@article{608b142d09c64ec691706059868ded08,
title = "Inhibition of bacterial RNA polymerase by streptolydigin: Stabilization of a straight-bridge-helix active-center conformation",
abstract = "We define the target, mechanism, and structural basis of inhibition of bacterial RNA polymerase (RNAP) by the tetramic acid antibiotic streptolydigin (Stl). Stl binds to a site adjacent to but not overlapping the RNAP active center and stabilizes an RNAP-active-center conformational state with a straight-bridge helix. The results provide direct support for the proposals that alternative straight-bridge-helix and bent-bridge-helix RNAP-active-center conformations exist and that cycling between straight-bridge-helix and bent-bridge-helix RNAP-active-center conformations is required for RNAP function. The results set bounds on models for RNAP function and suggest strategies for design of novel antibacterial agents.",
author = "Steven Tuske and Sarafianos, {Stefan G.} and Xinyue Wang and Brian Hudson and Elena Sineva and Jayanta Mukhopadhyay and Birktoft, {Jens J.} and Olivier Leroy and Sajida Ismail and Clark, {Arthur D.} and Chhaya Dharia and Andrew Napoli and Oleg Laptenko and Jookyung Lee and Sergei Borukhov and Ebright, {Richard H.} and Eddy Arnold",
note = "Funding Information: We thank E. Steinbrecher and Pharmacia & Upjohn, Inc., for streptolydigin; J. Fralick and R. Landick for bacterial strains; staff members at BNLS and CHESS and S. Ginell at APS for assistance with synchrotron data collection; and H. Berman, K. Das, J. Ding, C. Lawson, J. Patel, and members of our laboratories for assistance and discussions. This work was supported by NIH grants GM41376 (to R.H.E.), AI27690 and GM66671 (to E.A.), GM54098 (to S.B.), and GM21589 (to H. Berman; supported A.N.) and by a Howard Hughes Medical Investigatorship (to R.H.E.). ",
year = "2005",
month = aug,
day = "16",
doi = "10.1016/j.cell.2005.07.017",
language = "English (US)",
volume = "122",
pages = "541--552",
journal = "Cell",
issn = "0092-8674",
publisher = "Cell Press",
number = "4",
}