6KQD: Thermus thermophilus initial transcription complex comprising sigma A and 5'-OH RNA of 3 nt

PDB ID: 6KQDDownload
MMDB ID: 185041
PDB Deposition Date: 2019/8/17
Updated in MMDB: 2023/11
Experimental Method:
x-ray diffraction
Resolution: 3.3  Å
Source Organism:
Thermus thermophilus HB8▼
Similar Structures:
Biological Unit for 6KQD: nonameric; determined by author and by software (PISA)
Molecular Components in 6KQD
Label Count Molecule
Proteins (6 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
DNA-directed RNA Polymerase Subunit Omega
Molecule annotation
1
RNA Polymerase Sigma Factor Siga
Molecule annotation
Nucleotides(3 molecules)
1
DNA (5'-d(*cp*cp*t*gp*cp*ap*tp*cp*cp*gp*tp*gp*ap*gp*tp*cp*cp*ap*gp*gp*g)-3')
Molecule annotation
1
DNA (5'-d(*tp*ap*tp*ap*ap*tp*gp*gp*gp*ap*gp*cp*tp*gp*tp*cp*ap*cp*gp*gp*ap*tp*gp*cp*ap*gp*g*)-3')
Molecule annotation
1
RNA (5'-r(*gp*gp*a)-3')
Molecule annotation
Chemicals and Non-standard biopolymers (7 molecules)
1
4
MAGNESIUM IONMAGNESIUM ION
2
2
ZINC IONZINC ION
3
1
2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE
* 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