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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：D2KCK3 New Search
8PDB entries
8Biological assembly
9chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion 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
8JLC Cryo-EM structure of SV2A in complex with BoNT/A2 Hc and levetiracetam Deposited 2023-06-02 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 UKX (2S)-2-(2-oxidanylidenepyrrolidin-1-yl)butanamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.88 Å
8JLE Cryo-EM structure of SV2A LD4 in complex with BoNT/A2 Hc in the SV2A-levetiracetam-BoNT/A2 Hc complex Deposited 2023-06-02 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.82 Å
8JLF Cryo-EM structure of SV2A in complex with BoNT/A2 Hc Deposited 2023-06-02 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.01 Å
8JLG Cryo-EM structure of SV2A in complex with BoNT/A2 Hc Deposited 2023-06-02 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.87 Å
8JLH Cryo-EM structure of SV2A dimer in complex with BoNT/A2 Hc and levetiracetam Deposited 2023-06-02 Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 871–1296（426 aa）
Chain D 871–1296（426 aa）
Not recorded UKX (2S)-2-(2-oxidanylidenepyrrolidin-1-yl)butanamide × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
8JS8 Cryo-EM structure of SV2A in complex with BoNT/A2 Hc and levetiracetam Deposited 2023-06-19 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 UKX (2S)-2-(2-oxidanylidenepyrrolidin-1-yl)butanamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes (pH7.5), 150 mM NaCl, 0.001% LMNG, 0.0002% cholesterol hemisuccinate
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.88 Å
8JS9 Cryo-EM structure of SV2A in complex with BoNT/A2 Hc Deposited 2023-06-19 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.01 Å
8K77 Cryo-EM structure of SV2A in complex with BoNT/A2 Hc and brivaracetam Deposited 2023-07-26 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 871–1296（426 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 VLX (2S)-2-[(4R)-2-oxidanylidene-4-propyl-pyrrolidin-1-yl]butanamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.11 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.