National Center for
Biotechnology Information

8I23: Clostridium thermocellum RNA polymerase transcription open complex with SigI1 and its promoter

PDB ID:

MMDB ID:

236636

PDB Deposition Date:

2023/1/13

Updated in MMDB:

2023/11

Experimental Method:

electron microscopy

Resolution:

3.03 Å

Source Organism:

Acetivibrio thermocellus DSM 1313▼

Taxonomy	Molecule
Acetivibrio thermocellus DSM 1313	A, B, C, D, E, F
Acetivibrio thermocellus	O, P

Similar Structures:

Biological Unit for 8I23: octameric; determined by author

Molecular Components in 8I23
Label	Count	Molecule
Proteins (6 molecules)
A B	2	DNA-directed RNA Polymerase Subunit Alpha
C	1	DNA-directed RNA Polymerase Subunit Beta
D	1	DNA-directed RNA Polymerase Subunit Beta'
E	1	DNA-directed RNA Polymerase Subunit Omega
F	1	RNA Polymerase Sigma Factor Sigi1
Nucleotides(2 molecules)
O	1	DNA (80-mer)
P	1	DNA (80-mer)
Chemicals and Non-standard biopolymers (3 molecules)
1	2	ZINC ION
2	1	MAGNESIUM ION

* Click molecule labels to explore molecular sequence information.

Citing MMDB