E. coli sigma-S transcription initiation complex with a 3-nt RNA and a mismatching ATP ("Fresh" crystal soaked with ATP for 2 hours)

Structural Insights into Transcription Initiation from De Novo RNA Synthesis to Transitioning into Elongation.

DNA-directed RNA polymerase subunit alpha

DNA-directed RNA polymerase subunit beta

DNA-directed RNA polymerase subunit beta'

DNA-directed RNA polymerase subunit omega

Synthetic DNA 50-MER (promoter non-template strand)

Synthetic DNA 50-MER (promoter template strand)

RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta

RNAP subunit beta', RNA polymerase subunit beta', Transcriptase subunit beta'

RNAP omega subunit, RNA polymerase omega subunit, Transcriptase subunit omega

rpoS, appR, katF, nur, otsX, sigS, b2741, JW5437

National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Hydrogens have been added in their riding positions
DNA-directed RNA polymerase subunit alpha, DNA-directed RNA polymerase subunit beta, DNA-directed RNA polymerase subunit beta', DNA-directed RNA polymerase subunit omega, RNA polymerase sigma factor RpoS/DNA/RNA Complex
Transcription initiation, RNA polymerase, DNA promoter, transcription bubble, de novo RNA synthesis, DNA scrunching, sigma-S factor, TRANSCRIPTION, TRANSFERASE-DNA-RNA complex