[English] 日本語
Yorodumi- PDB-7kin: Mycobacterium tuberculosis WT RNAP transcription open promoter co... -
+
Open data
-
Basic information
| Entry | Database: PDB / ID: 7kin | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title | Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter | |||||||||||||||||||||||||||
Components |
| |||||||||||||||||||||||||||
Keywords | TRANSCRIPTION / TRANSFERASE/DNA / RNA polymerase / Transcription factor / Mycobacterium tuberculosis / Iron cluster / TRANSFERASE-DNA complex | |||||||||||||||||||||||||||
| Function / homology | Function and homology informationsigma factor activity / rRNA transcription / bacterial-type RNA polymerase core enzyme binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / protein dimerization activity / DNA-templated transcription ...sigma factor activity / rRNA transcription / bacterial-type RNA polymerase core enzyme binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / protein dimerization activity / DNA-templated transcription / positive regulation of DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.74 Å | |||||||||||||||||||||||||||
Authors | Lilic, M. / Darst, S.A. / Campbell, E.A. | |||||||||||||||||||||||||||
| Funding support | United States, 1items
| |||||||||||||||||||||||||||
Citation | Journal: Mol Cell / Year: 2021Title: Structural basis of transcriptional activation by the Mycobacterium tuberculosis intrinsic antibiotic-resistance transcription factor WhiB7. Authors: Mirjana Lilic / Seth A Darst / Elizabeth A Campbell / ![]() Abstract: In pathogenic mycobacteria, transcriptional responses to antibiotics result in induced antibiotic resistance. WhiB7 belongs to the Actinobacteria-specific family of Fe-S-containing transcription ...In pathogenic mycobacteria, transcriptional responses to antibiotics result in induced antibiotic resistance. WhiB7 belongs to the Actinobacteria-specific family of Fe-S-containing transcription factors and plays a crucial role in inducible antibiotic resistance in mycobacteria. Here, we present cryoelectron microscopy structures of Mycobacterium tuberculosis transcriptional regulatory complexes comprising RNA polymerase σ-holoenzyme, global regulators CarD and RbpA, and WhiB7, bound to a WhiB7-regulated promoter. The structures reveal how WhiB7 interacts with σ-holoenzyme while simultaneously interacting with an AT-rich sequence element via its AT-hook. Evidently, AT-hooks, rare elements in bacteria yet prevalent in eukaryotes, bind to target AT-rich DNA sequences similarly to the nuclear chromosome binding proteins. Unexpectedly, a subset of particles contained a WhiB7-stabilized closed promoter complex, revealing this intermediate's structure, and we apply kinetic modeling and biochemical assays to rationalize how WhiB7 activates transcription. Altogether, our work presents a comprehensive view of how WhiB7 serves to activate gene expression leading to antibiotic resistance. | |||||||||||||||||||||||||||
| History |
|
-
Structure visualization
| Movie |
Movie viewer |
|---|---|
| Structure viewer | Molecule: Molmil Jmol/JSmol |
-
Downloads & links
-
Download
| PDBx/mmCIF format | 7kin.cif.gz | 677.2 KB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb7kin.ent.gz | 531.3 KB | Display | PDB format |
| PDBx/mmJSON format | 7kin.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7kin_validation.pdf.gz | 887.5 KB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 7kin_full_validation.pdf.gz | 917.9 KB | Display | |
| Data in XML | 7kin_validation.xml.gz | 81.7 KB | Display | |
| Data in CIF | 7kin_validation.cif.gz | 138.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ki/7kin ftp://data.pdbj.org/pub/pdb/validation_reports/ki/7kin | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 22888MC ![]() 7kifC ![]() 7kimC M: map data used to model this data C: citing same article ( |
|---|---|
| Similar structure data | |
| EM raw data | EMPIAR-10864 (Title: cryoEM of Mycobacterium tuberculosis WT RNAP holoenzyme bound to the Mtb WhiB7 promoterData size: 1.2 TB Data #1: Unaligned multi-frame raw micrographs of Mycobacterium tuberculosis RNAP without WhiB7 transcription factor [micrographs - multiframe]) |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
-DNA-directed RNA polymerase subunit ... , 4 types, 5 molecules ABCDE
| #1: Protein | Mass: 37745.328 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Protein | | Mass: 129372.031 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Protein | | Mass: 147097.094 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: rpoC, E5M52_05480, ERS007665_00591, ERS013471_00574, ERS023446_00410, ERS075361_00813, ERS094182_01340, F6W99_03342 Production host: ![]() References: UniProt: A0A045J9E2, DNA-directed RNA polymerase #4: Protein | | Mass: 11819.075 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: rpoZ, ERS007703_04032, ERS007720_04749, ERS094182_01030 Production host: ![]() References: UniProt: A0A0T9N9K3, DNA-directed RNA polymerase |
|---|
-Protein , 1 types, 1 molecules F
| #5: Protein | Mass: 57845.098 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
|---|
-RNA polymerase-binding ... , 2 types, 2 molecules JM
| #6: Protein | Mass: 12993.695 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
|---|---|
| #7: Protein | Mass: 17933.361 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-DNA chain , 2 types, 2 molecules OP
| #8: DNA chain | Mass: 30844.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
|---|---|
| #9: DNA chain | Mass: 30862.684 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
-Non-polymers , 2 types, 3 molecules 


| #10: Chemical | | #11: Chemical | ChemComp-MG / | |
|---|
-Details
| Has ligand of interest | N |
|---|---|
| Has protein modification | N |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: Mycobacterium tuberculosis WT RNAP transcription open promoter complex with WhiB7 promoter Type: COMPLEX / Entity ID: #1-#9 / Source: MULTIPLE SOURCES |
|---|---|
| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 8 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 64 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-
Processing
| Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.74 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 296097 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
|
Movie
Controller
About Yorodumi





United States, 1items
Citation
UCSF Chimera














PDBj








































