8hsr

Thermus thermophilus Rho-engaged RNAP elongation complex (composite structure)

Method: ELECTRON MICROSCOPY
▼

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

Transcription termination factor Rho

Thermus thermophilus HB8

UniProt Q5SJE9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 DNA 2 RNA 1 DNA-directed RNA polymerase subunit alpha × 2 (Q5SHR6) DNA-directed RNA polymerase subunit beta × 1 (Q8RQE9) ;DNA-directed RNA polymerase subunit beta' ; × 1 (Q8RQE8) DNA-directed RNA polymerase subunit omega × 1 (Q8RQE7) DNA (41-MER) × 1 RNA (29-MER) × 1 DNA (31-MER) × 1 ADENOSINE-5'-DIPHOSPHATE × 6 MAGNESIUM ION × 7 BERYLLIUM TRIFLUORIDE ION × 6 ZINC ION × 2 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q5SJE9_THET8
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–428; UniProt 1–426 Author chain B; PDBConstruct 3–428; UniProt 1–426 Author chain C; PDBConstruct 3–428; UniProt 1–426 Author chain D; PDBConstruct 3–428; UniProt 1–426 Author chain E; PDBConstruct 3–428; UniProt 1–426 Author chain F; PDBConstruct 3–428; UniProt 1–426

DNA-directed RNA polymerase subunit alpha

Thermus thermophilus HB8

UniProt Q5SHR6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 DNA 2 RNA 1 Transcription termination factor Rho × 6 (Q5SJE9) DNA-directed RNA polymerase subunit beta × 1 (Q8RQE9) ;DNA-directed RNA polymerase subunit beta' ; × 1 (Q8RQE8) DNA-directed RNA polymerase subunit omega × 1 (Q8RQE7) DNA (41-MER) × 1 RNA (29-MER) × 1 DNA (31-MER) × 1 ADENOSINE-5'-DIPHOSPHATE × 6 MAGNESIUM ION × 7 BERYLLIUM TRIFLUORIDE ION × 6 ZINC ION × 2 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RPOA_THET8
Isoform —
PDB entities 2
Chains and sequence ranges Author chain G; PDBConstruct 1–315; UniProt 1–315 Author chain H; PDBConstruct 1–315; UniProt 1–315

DNA-directed RNA polymerase subunit beta

Thermus thermophilus HB8

UniProt Q8RQE9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 DNA 2 RNA 1 Transcription termination factor Rho × 6 (Q5SJE9) DNA-directed RNA polymerase subunit alpha × 2 (Q5SHR6) ;DNA-directed RNA polymerase subunit beta' ; × 1 (Q8RQE8) DNA-directed RNA polymerase subunit omega × 1 (Q8RQE7) DNA (41-MER) × 1 RNA (29-MER) × 1 DNA (31-MER) × 1 ADENOSINE-5'-DIPHOSPHATE × 6 MAGNESIUM ION × 7 BERYLLIUM TRIFLUORIDE ION × 6 ZINC ION × 2 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RPOB_THET8
Isoform —
PDB entities 3
Chains and sequence ranges Author chain I; PDBConstruct 1–1119; UniProt 1–1119

;DNA-directed RNA polymerase subunit beta' ;

Thermus thermophilus HB8

UniProt Q8RQE8

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 DNA 2 RNA 1 Transcription termination factor Rho × 6 (Q5SJE9) DNA-directed RNA polymerase subunit alpha × 2 (Q5SHR6) DNA-directed RNA polymerase subunit beta × 1 (Q8RQE9) DNA-directed RNA polymerase subunit omega × 1 (Q8RQE7) DNA (41-MER) × 1 RNA (29-MER) × 1 DNA (31-MER) × 1 ADENOSINE-5'-DIPHOSPHATE × 6 MAGNESIUM ION × 7 BERYLLIUM TRIFLUORIDE ION × 6 ZINC ION × 2 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RPOC_THET8
Isoform —
PDB entities 4
Chains and sequence ranges Author chain J; PDBConstruct 1–1524; UniProt 1–1524

DNA-directed RNA polymerase subunit omega

Thermus thermophilus HB8

UniProt Q8RQE7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Heteromer Protein 11 DNA 2 RNA 1 Transcription termination factor Rho × 6 (Q5SJE9) DNA-directed RNA polymerase subunit alpha × 2 (Q5SHR6) DNA-directed RNA polymerase subunit beta × 1 (Q8RQE9) ;DNA-directed RNA polymerase subunit beta' ; × 1 (Q8RQE8) DNA (41-MER) × 1 RNA (29-MER) × 1 DNA (31-MER) × 1 ADENOSINE-5'-DIPHOSPHATE × 6 MAGNESIUM ION × 7 BERYLLIUM TRIFLUORIDE ION × 6 ZINC ION × 2 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RPOZ_THET8
Isoform —
PDB entities 5
Chains and sequence ranges Author chain K; PDBConstruct 1–99; UniProt 1–99

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id8hsr
Deposition date deposition_date2022-12-20
Structure title titleThermus thermophilus Rho-engaged RNAP elongation complex (composite structure)
Keywords keywordsTranscription elongation complex, Transcription termination, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodELECTRON MICROSCOPY
▼

3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

8hsr__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

8hsr__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

8hsr__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)60.00 Å
Rg (electron density)60.05 Å
Total Rg59.96 Å
Atom count42577
Residues5238
Excluded volume754360 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8hsr__assembly_1__model_1 tetradecameric (14) Success 4.1.3-1-20251215 (887e7ef) View Download
▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (12)

▼

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id8hsrG01
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_id8hsrH01
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_id8hsrI01
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology1110 — Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; domain 3
Homologous superfamily homologous superfamily10 — RNA polymerase Rpb2, domain 2
Domain ID domain_id8hsrI02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily150 — RNA polymerase II, Rpb2 subunit, wall domain
Domain ID domain_id8hsrJ01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology274 — Enzyme I; Chain A, domain 2
Homologous superfamily homologous superfamily100 — RNA polymerase Rpb1, domain 3
▶

7. Citations (1)