ISDA: 9WSM

Deposition Date 2025-09-13

Release Date 2026-02-25

Last Version Date 2026-02-25

Entry Detail

PDB ID:

9WSM

Keywords:

TRANSCRIPTION

Title:

Cryo-EM structure of Sigma28-RNAP open promoter complex from Pseudomonas aeruginosa

Biological Source:

Source Organism(s):

Pseudomonas aeruginosa (Taxon ID: 287)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.40 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (54-MER)
Chain IDs:A (auth: 1)
Chain Length:54
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (50-MER)
Chain IDs:B (auth: 2)
Chain Length:54
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit alpha
Chain IDs:E (auth: A), F (auth: B)
Chain Length:333
Number of Molecules:2
Biological Source:Pseudomonas aeruginosa

Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit beta
Chain IDs:G (auth: C)
Chain Length:1357
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit beta'
Chain IDs:H (auth: D)
Chain Length:1399
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit omega
Chain IDs:C (auth: E)
Chain Length:88
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Polymer Type:polypeptide(L)
Molecule:RNA polymerase sigma factor FliA
Chain IDs:D (auth: F)
Chain Length:254
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

Ligand Molecules

Primary Citation

Structural insights into sigma 28-dependent transcription initiation and its regulation by anti-sigma factor in Pseudomonas aeruginosa

Sheenu, N, Kumar, V, Sahoo, P.K, Kandiah, E, Jain, D.Show

Nucleic Acids Res. 54 ? ? (2026)

PMID: 41521663 DOI: 10.1093/nar/gkaf1414

Primary Citation of related structures

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