6pst

Escherichia coli RNA polymerase promoter unwinding intermediate (TRPi1.5b) with TraR and mutant rpsT P2 promoter

Method: ELECTRON MICROSCOPY Dmax: 175.6 Å Quality: GOOD

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

Protein TraR

Escherichia coli

UniProt P41065

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain N; UniProt 2–73 Not recorded DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit alpha × 3 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T7) DNA-directed RNA polymerase subunit omega × 1 (P0A802) RNA polymerase sigma factor RpoD × 1 (Q0P6L9) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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.

9 other PDB entries and 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRAR_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain N; PDBConstruct 1–72; UniProt 2–73

DNA-directed RNA polymerase subunit alpha

Escherichia coli

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 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain G; UniProt 1–329 Chain H; UniProt 1–329 Chain M; UniProt 1–329 Not recorded Protein TraR × 1 (P41065) DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit beta × 1 (P0A8V4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T7) DNA-directed RNA polymerase subunit omega × 1 (P0A802) RNA polymerase sigma factor RpoD × 1 (Q0P6L9) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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 4
Chains and sequence ranges Author chain G; PDBConstruct 1–329; UniProt 1–329 Author chain H; PDBConstruct 1–329; UniProt 1–329 Author chain M; PDBConstruct 1–329; UniProt 1–329

DNA-directed RNA polymerase subunit beta

Escherichia coli

UniProt P0A8V4

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain I; UniProt 1–1342 Not recorded Protein TraR × 1 (P41065) DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit alpha × 3 (P0A7Z4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T7) DNA-directed RNA polymerase subunit omega × 1 (P0A802) RNA polymerase sigma factor RpoD × 1 (Q0P6L9) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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.

113 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOB_ECO57
Isoform
PDB entities 5
Chains and sequence ranges Author chain I; PDBConstruct 1–1342; UniProt 1–1342

;DNA-directed RNA polymerase subunit beta' ;

Escherichia coli

UniProt P0A8T7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain J; UniProt 2–1407 Not recorded Protein TraR × 1 (P41065) DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit alpha × 3 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V4) DNA-directed RNA polymerase subunit omega × 1 (P0A802) RNA polymerase sigma factor RpoD × 1 (Q0P6L9) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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.

239 other PDB entries and 275 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOC_ECOLI
Isoform
PDB entities 6
Chains and sequence ranges Author chain J; PDBConstruct 2–1407; UniProt 2–1407

DNA-directed RNA polymerase subunit omega

Escherichia coli

UniProt P0A802

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain K; UniProt 1–91 Not recorded Protein TraR × 1 (P41065) DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit alpha × 3 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T7) RNA polymerase sigma factor RpoD × 1 (Q0P6L9) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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.

59 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOZ_ECO57
Isoform
PDB entities 7
Chains and sequence ranges Author chain K; PDBConstruct 1–91; UniProt 1–91

RNA polymerase sigma factor RpoD

Escherichia coli

UniProt Q0P6L9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain L; UniProt 1–613 Not recorded Protein TraR × 1 (P41065) DNA (85-MER) × 1 DNA (85-MER) × 1 DNA-directed RNA polymerase subunit alpha × 3 (P0A7Z4) DNA-directed RNA polymerase subunit beta × 1 (P0A8V4) ;DNA-directed RNA polymerase subunit beta' ; × 1 (P0A8T7) DNA-directed RNA polymerase subunit omega × 1 (P0A802) ZN ZINC ION × 3 1N7 CHAPSO × 4 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.00 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.

32 other PDB entries and 33 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q0P6L9_ECOLX
Isoform
PDB entities 8
Chains and sequence ranges Author chain L; PDBConstruct 4–616; UniProt 1–613

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 6pst

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6pst
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6pst
Deposition date deposition_date2019-07-13
Structure title titleEscherichia coli RNA polymerase promoter unwinding intermediate (TRPi1.5b) with TraR and mutant rpsT P2 promoter
Keywords keywordsTRANSCRIPTION, transcription-dna complex; transcription/dna
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier53.15
Radius of gyration Rg (electron density) rg_electron52.18
Forward intensity I(0) i03192280000.00
Molecular weight molecular_weight449920.0 kDa
Excluded volume excluded_volume554300 ų
Envelope volume envelope_volume804300 ų
Hydration-shell volume shell_volume123980 ų
Envelope diameter envelope_diameter185.8
Shell Rg shell_rg58.56
Envelope Rg envelope_rg51.94
Shape Rg shape_rg52.14
Total Rg total_rg52.46
Total atoms total_atoms31608
Residues n_residues3827
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 dmax175.6
Rg (real space) rg_real52.99
Rg uncertainty (real space) rg_real_error1.22
I(0) (real space) i0_real3.1920e+09
I(0) uncertainty (real space) i0_real_error5.8450e+07
Rg (reciprocal space) rg_reciprocal53.27
I(0) (reciprocal space) i0_reciprocal3194000000.0000
Solution quality estimate total_estimate0.8683
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary64.4
Skewness Skewness skewness0.265
Kurtosis Kurtosis kurtosis-0.250
Angular range angular_range— – 0.1500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha394100000.0000
Real-space data points n_real_points31
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.831; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.957; Smooth: 0.834

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (11)

7. Fold Classification (SCOP + CATH) 7 domains

CATH v4.4 (7 domains)

Domain ID domain_id6pstG01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily10 — RNA polymerase, RBP11-like subunit
Domain ID domain_id6pstG02
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily12 — DNA-directed RNA polymerase, insert domain
Domain ID domain_id6pstH01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily10 — RNA polymerase, RBP11-like subunit
Domain ID domain_id6pstH02
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily12 — DNA-directed RNA polymerase, insert domain
Domain ID domain_id6pstJ01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology132 — Topoisomerase I; Chain A, domain 4
Homologous superfamily homologous superfamily30 — RNA polymerase Rpb1 funnel domain
Domain ID domain_id6pstK00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology940 — Eukaryotic RPB6 RNA polymerase subunit
Homologous superfamily homologous superfamily10 — RNA polymerase subunit, RPB6/omega
Domain ID domain_id6pstM00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily20 — 5' to 3' exonuclease, C-terminal subdomain

8. Citations (1)

9. Files and Curves (10)