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NDB ID: 6TYG    PDB ID: 6TYG 


Title:

CRYSTAL STRUCTURE OF MTB SIGMA L TRANSCRIPTION INITIATION COMPLEX WITH 9 NT LONG RNA PRIMER

Molecular Description:

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/DNA Complex

Deposited:

2019-08-08

Released:

2020-03-11

Structural Keywords:

RH DOUBLE HELIX

Nucleic Acid Sequence:

Click to show/hide 3 nucleic acid sequences

Protein Sequence:

Click to show/hide 5 protein sequences

Primary Citation:

Li, L., Molodtsov, V., Lin, W., Ebright, R.H., Zhang, Y.
RNA extension drives a stepwise displacement of an initiation-factor structural module in initial transcription. 
Proc.Natl.Acad.Sci.USA, 117, pp. 5801 - 5809, 2020.

Experimental Information:

X-RAY DIFFRACTION

Space Group:

P 21 21 21

Cell Constants:

a = 128.65   b = 158.227   c = 215.249 (Ångstroms)

α = 90.0   β = 90.0   γ = 90.0 (degrees)

Refinement:

The structure was refined using the PHENIX program. The R value is 0.2478 for 55779 reflections in the resolution range 49.64 to 3.5 Ångstroms with Fobs >  1.34 sigma(Fobs) and with I >  0.0 sigma(I)