8h69

Cryo-EM structure of influenza RNA polymerase

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Polymerase acidic protein

Influenza A virus (A/goose/Guangdong/1/1996(H5N1))

UniProt Q91R78

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 3 RNA 2 ;RNA (5'-R(*UP*AP*AP*AP*CP*UP*CP*CP*UP*GP*CP*UP*UP*UP*UP*GP*CP*U)-3') ; × 1 ;RNA (5'-R(P*AP*GP*UP*AP*GP*AP*AP*AP*CP*AP*AP*GP*GP*AP*GP*UP*UP*UP*U)-3') ; × 1 RNA-directed RNA polymerase catalytic subunit × 1 (Q91HA4) Polymerase basic protein 2 × 1 (Q6E3M8) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q91R78_9INFA
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A; PDBConstruct 1–716; UniProt 1–716

RNA-directed RNA polymerase catalytic subunit

Influenza A virus (A/goose/Guangdong/1/1996(H5N1))

UniProt Q91HA4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 3 RNA 2 ;RNA (5'-R(*UP*AP*AP*AP*CP*UP*CP*CP*UP*GP*CP*UP*UP*UP*UP*GP*CP*U)-3') ; × 1 ;RNA (5'-R(P*AP*GP*UP*AP*GP*AP*AP*AP*CP*AP*AP*GP*GP*AP*GP*UP*UP*UP*U)-3') ; × 1 Polymerase acidic protein × 1 (Q91R78) Polymerase basic protein 2 × 1 (Q6E3M8) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q91HA4_9INFA
Isoform —
PDB entities 4
Chains and sequence ranges Author chain B; PDBConstruct 1–757; UniProt 1–757

Polymerase basic protein 2

Influenza A virus (A/goose/Guangdong/1/1996(H5N1))

UniProt Q6E3M8

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 3 RNA 2 ;RNA (5'-R(*UP*AP*AP*AP*CP*UP*CP*CP*UP*GP*CP*UP*UP*UP*UP*GP*CP*U)-3') ; × 1 ;RNA (5'-R(P*AP*GP*UP*AP*GP*AP*AP*AP*CP*AP*AP*GP*GP*AP*GP*UP*UP*UP*U)-3') ; × 1 Polymerase acidic protein × 1 (Q91R78) RNA-directed RNA polymerase catalytic subunit × 1 (Q91HA4) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q6E3M8_9INFA
Isoform —
PDB entities 5
Chains and sequence ranges Author chain C; PDBConstruct 1–759; UniProt 1–759

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id8h69
Deposition date deposition_date2022-10-16
Structure title titleCryo-EM structure of influenza RNA polymerase
Keywords keywordsRNA polymerase, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

8h69__assembly_1__model_1

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

Download this curve (.dat)

8h69__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.

8h69__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)41.77 Å
Rg (electron density)41.14 Å
Total Rg41.53 Å
Atom count18028
Residues2190
Excluded volume318470 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8h69__assembly_1__model_1 pentameric (5) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id8h69A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology91 — Restriction Endonuclease
Homologous superfamily homologous superfamily90 — Influenza RNA-dependent RNA polymerase subunit PA, endonuclease domain
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7. Citations (1)