WebJul 29, 2024 · Transcription initiation is a key checkpoint and highly regulated step of gene expression. The sigma (σ) subunit of RNA polymerase (RNAP) controls all transcription initiation steps, from recognition of the −10/−35 promoter elements, upon formation of the closed promoter complex (RPc), to stabilization of the open promoter complex (RPo) and … WebMar 14, 2024 · Here, we report the single-particle cryo-electron microscopy structures of T. thermophilus Mfd-RNAP complex with and without ATPγS. The structures reveal that Mfd …
An SI3-σ arch stabilizes cyanobacteria transcription initiation …
WebJan 1, 2010 · 2.1. Preparation of RNAP. The RNAP core enzyme was purified from T. thermophilus cells as described previously (Vassylyeva et al., 2002 ).Briefly, the RNAP components in the T. thermophilus cell lysate were fractionated by polyethyleneimine precipitation followed by ammonium sulfate precipitation. The endogenous RNAP core … WebApr 28, 2007 · Crystal structure of the T. thermophilus RNAP polymerase elongation complex with the ntp substrate analog and antibiotic streptolydigin. ... Here we report the 3.0-A resolution structures of the Thermus thermophilus elongation complex (EC) with a non-hydrolysable substrate analogue, adenosine-5'-[(alpha,beta)-methyleno]-triphosphate ... tsw pty ltd
A Thermus phage protein inhibits host RNA polymerase by
Webconsisting of RNAP holoenzyme and gp39 revealed that the conformational modulation of RNAP promoter specificity can change gene expression to support phage gp39 development. 27. Yet another phage, φYS40, infecting . T. thermophilus. does not encode protein factors to modulate host RNAP promoter specificity in the middle and late phases. … WebJul 2, 2005 · Here we show that unlike rifampicin and rifapentin, and contradictory to the steric model, rifabutin inhibits formation of the first and second phosphodiester bonds. We report 2.5 A resolution structures of rifabutin and rifapentin complexed with the Thermus thermophilus RNAP holoenzyme. WebT. thermophilus P23-45 phage gp76 is a 5.8-kDa pro- tein comprising 51 amino acid residues (Supplementary Figure S1). Crystals of T. thermophilus RNAP A holoen- zyme … tsw properties llc