8ac0

RNA polymerase at U-rich pause bound to regulatory RNA putL - active, closed clamp state

Method: ELECTRON MICROSCOPY Dmax: 160.2 Å Quality: REASONABLE

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit alpha

Escherichia coli BL21

UniProt P0A7Z4

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 5 DNA 2 RNA 1 PDB declaration: octameric(8) Consistent with all polymer counts Chain A; UniProt 1–329 Chain B; UniProt 1–329 Not recorded DNA-directed RNA polymerase subunit beta × 1 (P0A8V2) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T8) DNA-directed RNA polymerase subunit omega × 1 (P0A800) DNA Non-template strand × 1 putL RNA × 1 DNA Template strand × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 8;20 mM Tris-glutamate pH 8.0, 50 mM K-glutamate, 10 mM Mg-glutamate, 0.001 mM ZnCl2, 2mM DTT cryo-EM vitrification conditions:Cryogen ETHANE;Quantifoil UltrAuFoil R1.2/1.3 300 mesh holey gold grids were plasma cleaned on a Model 1070 (Fischione Instruments) for 30 sec at 70% power and with an 80% Argon and 20% Oxygen mixture prior to the application of 0.004 ml of sample. Grids were plunge frozen into liquid ethane using a Vitrobot mark IV (FEI) with 95% chamber humidity at 283K. Resolution 4.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

276 other PDB entries and 305 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOA_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–329; UniProt 1–329 Author chain B; PDBConstruct 1–329; UniProt 1–329

DNA-directed RNA polymerase subunit beta

Escherichia coli K-12

UniProt P0A8V2

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 5 DNA 2 RNA 1 PDB declaration: octameric(8) Consistent with all polymer counts Chain C; UniProt 1–1342 Not recorded DNA-directed RNA polymerase subunit alpha × 2 (P0A7Z4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T8) DNA-directed RNA polymerase subunit omega × 1 (P0A800) DNA Non-template strand × 1 putL RNA × 1 DNA Template strand × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 8;20 mM Tris-glutamate pH 8.0, 50 mM K-glutamate, 10 mM Mg-glutamate, 0.001 mM ZnCl2, 2mM DTT cryo-EM vitrification conditions:Cryogen ETHANE;Quantifoil UltrAuFoil R1.2/1.3 300 mesh holey gold grids were plasma cleaned on a Model 1070 (Fischione Instruments) for 30 sec at 70% power and with an 80% Argon and 20% Oxygen mixture prior to the application of 0.004 ml of sample. Grids were plunge frozen into liquid ethane using a Vitrobot mark IV (FEI) with 95% chamber humidity at 283K. Resolution 4.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

219 other PDB entries and 240 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOB_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–1342; UniProt 1–1342

;DNA-directed RNA polymerase subunit beta' ;

Escherichia coli K-12

UniProt P0A8T8

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 5 DNA 2 RNA 1 PDB declaration: octameric(8) Consistent with all polymer counts Chain D; UniProt 1–1406 Not recorded DNA-directed RNA polymerase subunit alpha × 2 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V2) DNA-directed RNA polymerase subunit omega × 1 (P0A800) DNA Non-template strand × 1 putL RNA × 1 DNA Template strand × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 8;20 mM Tris-glutamate pH 8.0, 50 mM K-glutamate, 10 mM Mg-glutamate, 0.001 mM ZnCl2, 2mM DTT cryo-EM vitrification conditions:Cryogen ETHANE;Quantifoil UltrAuFoil R1.2/1.3 300 mesh holey gold grids were plasma cleaned on a Model 1070 (Fischione Instruments) for 30 sec at 70% power and with an 80% Argon and 20% Oxygen mixture prior to the application of 0.004 ml of sample. Grids were plunge frozen into liquid ethane using a Vitrobot mark IV (FEI) with 95% chamber humidity at 283K. Resolution 4.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

51 other PDB entries and 53 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOC_ECO57
Isoform
PDB entities 3
Chains and sequence ranges Author chain D; PDBConstruct 1–1406; UniProt 1–1406

DNA-directed RNA polymerase subunit omega

Escherichia coli K-12

UniProt P0A800

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 5 DNA 2 RNA 1 PDB declaration: octameric(8) Consistent with all polymer counts Chain E; UniProt 1–91 Not recorded DNA-directed RNA polymerase subunit alpha × 2 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V2) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T8) DNA Non-template strand × 1 putL RNA × 1 DNA Template strand × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 8;20 mM Tris-glutamate pH 8.0, 50 mM K-glutamate, 10 mM Mg-glutamate, 0.001 mM ZnCl2, 2mM DTT cryo-EM vitrification conditions:Cryogen ETHANE;Quantifoil UltrAuFoil R1.2/1.3 300 mesh holey gold grids were plasma cleaned on a Model 1070 (Fischione Instruments) for 30 sec at 70% power and with an 80% Argon and 20% Oxygen mixture prior to the application of 0.004 ml of sample. Grids were plunge frozen into liquid ethane using a Vitrobot mark IV (FEI) with 95% chamber humidity at 283K. Resolution 4.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

258 other PDB entries and 277 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOZ_ECOLI
Isoform
PDB entities 4
Chains and sequence ranges Author chain E; PDBConstruct 1–91; UniProt 1–91

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8ac0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8ac0
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8ac0
Deposition date deposition_date2022-07-05
Structure title titleRNA polymerase at U-rich pause bound to regulatory RNA putL - active, closed clamp state
Keywords keywordsRNA polymerase, transcriptional pausing, transcription termination, regulatory RNA, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier50.41
Radius of gyration Rg (electron density) rg_electron49.46
Forward intensity I(0) i02727570000.00
Molecular weight molecular_weight400720.0 kDa
Excluded volume excluded_volume487440 ų
Envelope volume envelope_volume732820 ų
Hydration-shell volume shell_volume117560 ų
Envelope diameter envelope_diameter163.9
Shell Rg shell_rg57.39
Envelope Rg envelope_rg49.02
Shape Rg shape_rg49.43
Total Rg total_rg49.78
Total atoms total_atoms27948
Residues n_residues3329
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax160.2
Rg (real space) rg_real50.23
Rg uncertainty (real space) rg_real_error0.97
I(0) (real space) i0_real2.7280e+09
I(0) uncertainty (real space) i0_real_error4.3710e+07
Rg (reciprocal space) rg_reciprocal50.55
I(0) (reciprocal space) i0_reciprocal2729000000.0000
Solution quality estimate total_estimate0.5955
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary62.0
Skewness Skewness skewness0.189
Kurtosis Kurtosis kurtosis-0.450
Angular range angular_range— – 0.1550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha411700000.0000
Real-space data points n_real_points32
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.892; Stabil: 1.000; Sysdev: 0.029; Positv: 1.000; Valcen: 0.974; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

8. Citations (1)

9. Files and Curves (10)