← Back to search

Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q3HM39 New Search
25PDB entries
25Biological assembly
25chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
7NHA 1918 H1N1 Viral influenza polymerase heterotrimer - Endonuclease and priming loop ordered (Class2a) Deposited 2021-02-10 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；3.5 second blot and 3 microlitres sample.
Resolution 2.91 Å
7NHC 1918 H1N1 Viral influenza polymerase heterotrimer - Endonuclease ordered (Class2b) Deposited 2021-02-10 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；3.5 second blot and 3 microlitres sample.
Resolution 2.87 Å
7NHX 1918 H1N1 Viral influenza polymerase heterotrimer - full transcriptase (Class1) Deposited 2021-02-11 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；3.5 second blot and 3 microlitres sample.
Resolution 3.23 Å
7NI0 1918 H1N1 Viral influenza polymerase heterotrimer - Replicase (class 3) Deposited 2021-02-11 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；3.5 second blot and 3 microlitres sample.
Resolution 3.32 Å
7NIK 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8189 core Deposited 2021-02-12 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.20 Å
7NIL 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8190 core Deposited 2021-02-12 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.01 Å
7NIR 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8191 core Deposited 2021-02-13 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.70 Å
7NIS 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8192 core Deposited 2021-02-13 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.96 Å
7NJ3 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8196 core Deposited 2021-02-15 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.48 Å
7NJ4 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8198 core Deposited 2021-02-16 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.84 Å
7NJ5 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8199 core Deposited 2021-02-16 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.63 Å
7NJ7 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8200 core Deposited 2021-02-16 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.82 Å
7NK1 1918 Influenza virus polymerase heterotirmer in complex with vRNA promoters and Nb8201 Deposited 2021-02-17 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.22 Å
7NK2 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8202 core Deposited 2021-02-17 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.84 Å
7NK4 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8203 core Deposited 2021-02-17 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.32 Å
7NK6 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8204 Deposited 2021-02-17 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.72 Å
7NK8 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8205 core Deposited 2021-02-17 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.34 Å
7NKA 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8206 Deposited 2021-02-17 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.07 Å
7NKC 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8207 Deposited 2021-02-17 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.46 Å
7NKI 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8209 core Deposited 2021-02-18 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.67 Å
7NKR 1918 H1N1 Viral influenza polymerase heterotrimer with Nb8210 Deposited 2021-02-18 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.60 Å
8R60 1918 H1N1 Viral polymerase heterotrimer in complex with 4 repeat serine-5 phosphorylated PolII peptide Deposited 2023-11-19 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.23 Å
8R65 1918 H1N1 Viral polymerase heterotrimer in complex with 4 repeat serine-5 phosphorylated PolII peptide with ordered PB2 C-terminal domains Deposited 2023-11-20 Assembly 1 Protein–RNA Heteromer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.23 Å
9RVE Structure of human 1918 influenza A polymerase heterotrimer in complex with 1918 NEP. Deposited 2025-07-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.53 Å
9RYC Structure of human 1918 influenza A polymerase heterotrimer in complex with WSN NEP. Deposited 2025-07-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–716（716 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.93 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.