8QU6: Mycobacterium smegnatis RNA polymerase transcription initiation complex with SigmaA, RbpA, HelD and an upstream-fork promoter fragment

PDB ID: 8QU6Download
MMDB ID: 252933
PDB Deposition Date: 2023/10/13
Updated in MMDB: 2024/12
Experimental Method:
electron microscopy
Resolution: 3.45  Å
Source Organism:
Similar Structures:
Biological Unit for 8QU6: decameric; determined by author
Molecular Components in 8QU6
Label Count Molecule
Proteins (8 molecules)
2
DNA-directed RNA Polymerase Subunit Alpha
Molecule annotation
1
DNA-directed RNA Polymerase Subunit Beta
Molecule annotation
1
DNA-directed RNA Polymerase Subunit Beta'
Molecule annotation
1
RNA Polymerase-binding Protein Rbpa
(Gene symbol: MSMEG_3858)
Molecule annotation
1
DNA-directed RNA Polymerase Subunit Omega
(Gene symbol: rpoZ)
Molecule annotation
1
RNA Polymerase Sigma Factor Siga
(Gene symbol: MSMEG_2758)
Molecule annotation
1
Helicase
Molecule annotation
Nucleotides(2 molecules)
1
DNA 22-mer
Molecule annotation
1
DNA 31-mer
Molecule annotation
Chemicals and Non-standard biopolymers (3 molecules)
1
2
ZINC IONZINC ION
2
1
MAGNESIUM IONMAGNESIUM ION
* Click molecule labels to explore molecular sequence information.
Citing MMDB
Madej T, Lanczycki CJ, Zhang D, Thiessen PA, Geer RC, Marchler-Bauer A, Bryant SH. " MMDB and VAST+: tracking structural similarities between macromolecular complexes. Nucleic Acids Res. 2014 Jan; 42(Database issue):D297-303