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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：P08034 New Search
15PDB entries
15Biological assembly
139chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
5KK9 Connexin 32 G12R N-Terminal Mutant, Deposited 2016-06-21 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–22（22 aa）
Mutation：G12R Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；288 K；Ionic strength (raw mmCIF value) 0.1；Pressure 1
NMR sample composition 1.0 mM ACE-MET-ASN-TRP-THR-GLY-LEU-TYR-THR-LEU-LEU-SER-ARG-VAL-ASN-ARG-HIS-SER-THR-ALA-ILE-GLY-ARG, 100 mM KCl, 100 uM TSP, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
7ZXM cryo-EM structure of Connexin 32 gap junction channel Deposited 2022-05-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.14 Å
7ZXN cryo-EM structure of Connexin 32 gap junction channel Deposited 2022-05-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Not recorded CLR CHOLESTEROL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.06 Å
7ZXO cryo-EM structure of Connexin 32 gap junction channel Deposited 2022-05-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.50 Å
7ZXP cryo-EM structure of Connexin 32 R22G mutation gap junction channel Deposited 2022-05-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.39 Å
7ZXQ cryo-EM structure of Connexin 32 R22G mutation hemi channel Deposited 2022-05-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.53 Å
7ZXT cryo-EM structure of Connexin 32 W3S mutation hemi channel Deposited 2022-05-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
8QJF Connexin-32 gap junction channel in complex with 2-aminoethoxydiphenyl borate Deposited 2023-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Chain M 1–283（283 aa）
Not recorded CLR CHOLESTEROL × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.86 Å
8QJH Connexin-32 gap junction channel in complex with mefloquine Deposited 2023-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
8QK6 Connexin-32 hemichannel upon addition of 2-aminoetoxydiphenyl borate Deposited 2023-09-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Not recorded CLR CHOLESTEROL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å
8QKI Connexin-32 hemichannel upon addition of mefloquine Deposited 2023-09-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Not recorded CLR CHOLESTEROL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.46 Å
9QN9 Connexin-32 (Cx32) gap junction channel in POPC-containing nanodiscs in the absence of CHS Deposited 2025-03-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.12 Å
9QND Connexin-32 (Cx32) W3S mutant gap junction channel in POPC-containing MSP2N2 nanodiscs Deposited 2025-03-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.35 Å
9QNF Connexin-32 (Cx32) in MSP2N2 nanodiscs with POPC Deposited 2025-03-25 Assembly 1 Insufficient information Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 12 CLR CHOLESTEROL × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
9QNT Connexin-32 (Cx32) in MSP2N2 nanodiscs with liver polar lipids Deposited 2025-03-25 Assembly 1 Insufficient information Homooligomer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 1–283（283 aa）
Chain B 1–283（283 aa）
Chain C 1–283（283 aa）
Chain D 1–283（283 aa）
Chain E 1–283（283 aa）
Chain F 1–283（283 aa）
Chain G 1–283（283 aa）
Chain H 1–283（283 aa）
Chain I 1–283（283 aa）
Chain J 1–283（283 aa）
Chain K 1–283（283 aa）
Chain L 1–283（283 aa）
Not recorded POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 12 CLR CHOLESTEROL × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.29 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.