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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：Q8QN22 New Search
4PDB entries
4Biological assembly
26chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different ligand/ion 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
8FXW Cryo-EM structure of cowpox virus M2 in complex with human B7.1 (hexameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 18–220（203 aa）
Chain B 18–220（203 aa）
Chain D 18–220（203 aa）
Chain F 18–220（203 aa）
Chain I 18–220（203 aa）
Chain K 18–220（203 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8FXX Cryo-EM structure of cowpox virus M2 in complex with human B7.2 (heptameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric（14） Consistent with protein count
Chain A 18–218（201 aa）
Chain B 18–218（201 aa）
Chain D 18–218（201 aa）
Chain F 18–218（201 aa）
Chain I 18–218（201 aa）
Chain K 18–218（201 aa）
Chain M 18–218（201 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 21 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.26 Å
8FXY Cryo-EM structure of cowpox virus M2 in complex with human B7.2 (hexameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 18–218（201 aa）
Chain B 18–218（201 aa）
Chain D 18–218（201 aa）
Chain F 18–218（201 aa）
Chain I 18–218（201 aa）
Chain K 18–218（201 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.34 Å
8FXZ Cryo-EM structure of cowpox virus M2 in complex with human B7.1 (heptameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric（14） Consistent with protein count
Chain A 18–220（203 aa）
Chain B 18–220（203 aa）
Chain D 18–220（203 aa）
Chain F 18–220（203 aa）
Chain I 18–220（203 aa）
Chain K 18–220（203 aa）
Chain M 18–220（203 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 21 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.86 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.